r 1969 ANNUAL REPORT of HOP AND MINT INVESTIGATIONS CRIS Work Unit 0650-05-01 & 02 (OAES Projects 36 and 120) Distribution of Copies 4 1 1 1 3 3 2 1 1 2 1 Authors Dept. of Agr. Chem., Oregon State Univ. Dept. of Bot. & Plant Path., Oregon State Univ. Dept. of Farm Crops, Oregon State Univ. Hop Investigations Irrigated Agr. Res. U Ext. Center, Wash. State Univ. Oilseed & Industrial Crops Res. Branch Oregon Agri. Exper. Station Parma Branch Exper. Station, Univ. of Idaho University of California at Davis Western Utilization Res. and Development Div. Results of research reported herein are preliminary, subject to verification, and are not for publication. TABLE OF CONTENTS Page INTRODUCTION 1 BREEDING, GENETICS, PATHOLOGY, PHYSIOLOGY AND CULTURE OF HOPS AND MINT: CRIS WORK UNIT 0650-05-01 and 02 (OAES PROJECTS 36 AND 120) 5 HOP INVESTIGATIONS Breeding, Genetics and Evaluation Exchange of germ plasm New numbering system Accession numbers assigned in 1969 Crosses made in 1969 1967 seedling nursery 1968 seedling nursery Advanced observation nursery Female and male breeding blocks Female germ plasm nursery Male germ plasm nursery Triploid nursery Hop Genetics Cytological analysis of seedlings from a tetraploid x diploid cross Sex expression of seedlings from a tetraploid x diploid cross Comparison of growth rates of triploid and tetraploid hop plants Yield and quality of hop as related to level of polyploidy Cytological studies on the seedling progeny from a cross of triploid x diploid hop Tetraploid seedling nursery Genetic block Commercial Evaluation Off-station production for brewing trials Recommendations for disposition of "off-station" varieties Other advanced selections Hop Diseases Hop downy mildew Verticillium wilt Virus diseases Hop Physiology and Propagation Propagation of advanced lines Evaluation of new lines Evaluation of hops in seedling year Correlation of plant morphology and yield Relationship of floral initiation, growth factors and supplemental lighting 5 5 6 7 7 13 13 21 21 29 29 33 42 42 42 42 46 46 48 51 53 65 68 69 71 71 74 77 82 82 83 83 83 84 Page Hop Chemistry Storage stability Trial crosses for high analysis Development of a pool of high analysis lines "Preliminary" crosses for genetic study of alpha acid inheritance Summary of selection of genotypes suitable for consideration as parents in crosses for high quality and high analysis Males Females Plans - 1970 crop year Plans - 1971 to 1975 98 98 100 103 Appendix 117 105 109 110 111 111 112 MINT INVESTIGATIONS Introduction 152 Wilt-Resistant Varieties 152 Wilt Control by Stubble Flaming 153 Certified Planting Stock 153 Rust Control - Some Problems and Solutions 1. Flaming too early 2. Poor heat penetration in dense, matted rootstock 154 154 154 INTRODUCTION C. E. Horner This 1969 Annual Report of Hop and Mint Investigations, carried out by the regional hop project headquartered at Corvallis, Oregon, includes data collected and summarized during the period March 1, 1969 to February 28, 1970. It includes data, in some cases, which were collected by personnel at the Irrigated Agriculture Research and Extension Center at Prosser, Washington. All data on hop research are reported under one of six main lines of study. Discussions and summarizing data are presented when appropriate. Additional data or notes which are important enough to be included as a matter of permanent record are appended to the report. The work summarized in this report is supported by public and private Cooperative research is carried out by Crops Research Division, ARS, USDA; Oregon Agricultural Experiment Station; and United States Brewers Foundation through the Agricultural Research Foundation under Memorandum of Understanding. In addition, certain phases of the Federal breeding program are cooperative with the Agricultural Experiment Stations in California, Idaho and Washington, also under Memorandum of Understanding. This report does not summarize work done at any of the institutions which does not involve direct cooperation of Federal personnel. funds. The immediate staff of the hop research project during the preceding twelve months consisted of the following persons. This list is made up of regularly employed personnel who were associated with the cooperative State-Federal hop research program and thus contributed directly to the work reported herein. Personnel doing independent research at Oregon State University and field assistants hired for intermittent or seasonal jobs on the cooperative program are not included. Mr. J. F. Anderson, Assistant in Plant Pathology, OSU, Dr. Alfred Haunold, Research Plant Geneticist, USDA, Dr. C. E. Horner, Research Plant Pathologist, USDA, Project Leader, Mr. Lynn Jewell, Laborer, Mr. S. T. Likens, Research Chemist, USDA, Miss G. B. Nickerson, Chemist, OSU, Mr. C. E. Zimmermann, Research Plant Physiologist, USDA. Papers published by hop and mint project personnel since the last reporting period are as follows: Horner, C. E. Mint Disease Control Research. Proceedings of Annual Meeting, Oregon Essential Oil Growers League. (April 1969) pp. 10-21. Likens, S. T. and H. D. Antles. Hop Analysis, and ASBC Sub-Committee Report. Amer. Soc. of Brewing Chemists Proceedings for 1968. (May 1969). -2- Melouk, H. Production of Polygalacturonase and Macerating Enzymes by Phoma menthae. Ph.D. thesis. Oregon State University, Corvallis. (1969) 87 pp. Melouk, H. and C. E. Horner. Production of Polygalacturonase by Phoma menthae. Phytopathology, vol. 59 (January 1969) pp. 13-14. Sherrod, L. L. Nature of Resistance to Verticillium dahliae Kleb. in Strains of Peppermint (Mentha piperita L.) Developed by Radiation. Ph.D. thesis. Oregon State University, Corvallis, (1969) pp. 121. U. S. Hop Production According to the Oregon Crop and Livestock Reporting Service (29 December 1969), U. S. production of hops was 41.8 million pounds, 5 percent below last year and lowest since 1961. Total acreage was down 5 percent. Yield per acre was up in Idaho and Washington but down in Oregon and California. Total value of the United States crop was $21,305,000 (Table 1). U. S. Mint Oil Production According to the Oregon Crop and Livestock Reporting Service (23 December 1969), the U. S. production of peppermint oil was 4.6 million pounds or 60 pounds per acre on 77,800 harvested acres. This production was 13 percent higher than last year's crop, due to a 5 percent increase in harvested acreage and a 4 pound per acre increase in yield over 1968. The U. S. average price, at $4.77 per pound, was 38 cents less than last year and 76 cents below the 1967 price. However, total value of production increased 5 percent over 1968, from $21,125,000 to $22,095,000. Production of spearmint in the U. S. totaled 1,752,000 pounds of oil, 27 percent above 1968 and 7 percent higher than 1967. The 27,000 acres harvested had a yield of 65 pounds per acre, compared with 23,000 acres and 60 pounds per acre in 1968. The average price was estimated at $4.82 per pound for a total value of production of $8,442,000, 8 percent higher than a year ago, but 6 percent below 1967 (Table 2). Table 1. Hops: Acreage harvested Acreage, yield, production--season average price received by growers and value--annual 1967, 1968 and 1969 Yield per acre Production State 1967 1968 1969 -Acres-(000) Idaho 1967 1968 1969 -Pounds- 1/1967 1/1968 ZI1969 -1,000 Pounds- Price/lb. 1969 1968 -Pct.- 1968 1969 -Cents- Value 1968 1969 -1,000 Dollars- 3.6 3.3 3.2 1,810 1,740 1,860 6,516 5,742 5,952 104 48.0 53.0 2,756 3,155 19.4 19.1 18.1 1,660 1,510 1,560 32,204 28,841 28,236 98 46.5 50.0 13,411 14,118 Oregon 4.9 4.5 4.2 1,490 1,480 1,250 7,301 6,660 5,250 79 48.0 52.0 3,197 2,730 California 1.9 1.5 1.5 1,830 1,660 1,550 3,477 2,490 2,325 93 52.0 56.0 1,295 1,302 29.8 28.4 27.0 1,661 1,540 1,547 49,498 43,733 41,763 95 47.2 51.0 20,659 21,305 Washington United States 1/ Harvested production. Includes hops destroyed in kiln and warehouse fires after harvest and quantities placed in reserve under Federal Market Order 991. 1/ Total production. Quantities available for market will be governed by regulations issued under Federal Market Order 991. Table 2. Seasonal group and State Mint for Oil: Acreage, yield, production, season average price received by growers, and value; annual 1968 and 1969 Planted acreage 1968 1969 Harvested acreage -Acres- -Acres- 1968 1969 Yld per acre 1968 1969 Production -Pounds- -1,000 pounds- 1968 1969 Price per pound 196 8 1969 Value 1968 1969 -Dollars- -1,000 dollars- Peppermint Indiana 6,300 6,500 6,300 6,500 35 36 220 234 7.80 6.60 1,716 1,544 Michigan 2,100 1,800 1,900 1,700 32 34 61 58 7.70 6.60 470 383 Wisconsin 6,500 7,100 6,300 6,900 43 45 271 310 7.70 6.70 2,087 2,077 Idaho 5,100 5,700 5,100 5,700 51 65 260 370 4.90 4.50 1,274 1,665 Washington 23,200 21,000 23,200 21,000 63 68 1,462 1,428 4.40 4.00 6,433 5,712 Oregon 31,500 36,500 31,000 36,000 59 62 1,829 2,232 5.00 4.80 9,145 10,714 74,700 78,600 73,800 77,800 56 60 4,103 4,632 5.15 4.77 21,125 22,095 Indiana 4,600 5,100 4,600 5,100 36 38 166 194 8.30 7.60 1,378 1,474 Michigan 3,300 4,600 3,000 4,200 31 38 93 160 8.70 8.60 809 1,376 Washington 15,400 17,700 15,400 17,700 73 79 1,124 1,398 5.00 4.00 5,620 5,592 Total 23,300 27,400 23,000 27,000 60 65 1,383 1,752 5.64 4.82 7,807 8,442 Total Spearmint -5- BREEDING, GENETICS, PATHOLOGY, PHYSIOLOGY AND CULTURE OF HOPS CRIS Work Unit 0650-05-01 ? -02 OAES Project 36 Alfred Haunold, C. E. Zimmermann, S. T. Likens and C. E. Horner HOP INVESTIGATIONS Breeding, Genetics and Evaluation Exchange of germ plasm Requests for hop seed in 1969 were filled as follows: M. Karta, Hyland Farms, India: Seed of Bullion x OP (40:9-12), 1969. Jorge Francke, P. 0. Box 158, Tecata, Baja Genotype Name 60014 x OP Ariz. 1-3 x OP 60015 x OP Ariz. 1-4 x OP 60016 x OP N. Mex. 1-3 x OP 60018 x OP N. Mex. 2-2 x OP 60020 x OP N. Mex. 2-4 x OP 65101 x OP Talisman x OP 64100 x OP Bullion x OP 65103 x OP E2 x OP 65102 x OP Yak. Cluster x OP 66051 x OP Progress x OP California, Mexico: Source 47:1-4 48:1-4 49:1-4 51:1-4 52:1-4 36:1-4 40:9-12 38:5-8 34:5-8 32:19-20 H. H. Fischer, New Crops Research Branch, USDA: Genotype Name 60014 x OP Ariz. 1-3 x OP 60015 x OP Ariz. 1-4 x OP 60016 x OP N. Mex. 1-3 x OP 60017 x OP N. Mex. 2-1 x OP 60018 x OP N. Mex. 2-2 x OP 60020 x OP N. Mex. 2-4 x OP (19001-50015M) x OP (BG x Ut526-4)x OP (19209-60028M) x OP (Fu x Colo2-3)x OP Source 47:1-4 48:1-4 49:1-4 50 :1 -4 51:1-4 52:1-4 40:29-30 42:29-30 The following persons received hop rhizomes from Corvallis in the past year: H. B. Dowse, New York University, Bronx, New York 10453: 25 rhizomes each of Fuggle, 19209, and Brewers Gold, 19001. R. R. Romanko, University of Idaho, Parma, Idaho: 10 rhizomes each of Backa, 56002, and Northern Brewer, 64107. -6- Mrs. Betty Lucas, Cottage Grove, Oregon: 5 rhizomes of Brewers Gold, 19001. At Corvallis we did not receive any germ plasm for testing or observation in 1969. New numbering system A change in the numbering system was made in 1969 which should allow greater flexibility and continuity in handling research material than was possible with the previous system. The system is similar to the one used by cereal breeders. 1) Cross numbers: All cross numbers will be four-digit numbers with no hyphens; for example, 6901, 6911, etc. The first two digits indicate the year the cross was made; the second two digits are the arbitrary cross numbers within the particular year. Open pollinated seed collections are handled like crosses. It is anticipated that never more than 99 crosses or open pollinated seed collections will be made in one year. 2) Selection numbers: All selection numbers are temporary six or seven-digit numbers consisting of two parts connected by a hyphen; for example, 6901-01, 6901-11, 6911-154. The first portion is the cross number; the second portion is the particular plant selection from this cross. Thus, if fourteen plants are selected from cross No. 6901, the selection numbers are 6901-01 to 6901-14. If a selection is thought to be particularly valuable for any reason, a permanent accession number will be assigned and the selection number will be dropped. Sould Prosser (Washington) or Parma (Idaho) have selections which should be tested by several stations, we will use the prefix W (Washington) or I (Idaho), or a permanent accession number without any prefixes may be assigned to the selection. 3). Accession numbers: All accession numbers have five digits without hyphens. They are arbitrarily assigned numbers beginning with 21001 in 1969 and will be assigned without skips. Accession numbers per se will not reveal the year the number was assigned. They will be entered in the master record, and also in the Federal annual report for that year, together with the selection number and the complete pedigree and history of the genotype (if available). A large M following an accession number indicates "male". Previously assigned accession numbers will not be changed, except that the prefixes C or I will be dropped. Also, a hyphen or /, which was sometimes used with the old accession numbers, will be eliminated and replaced by a 0 to give a five-digit number. 4) Duplication: Under no circumstances should a cross, selection, or accession number ever be duplicated, even if different prefixes are used for selection numbers to indicate different stations. -7- Accession numbers assigned in 1969 Twelve genotypes received permanent accession numbers in 1969 Two (21001 and 21002) are types with European aroma characteristics that are of interest to some U. S. brewers who presently import such hops; 21003 is a tetraploid Fuggle developed from Oregon Fuggle (19209) by colchicine treatment; 21004 and 21005 are high alpha types with a strong Brewers Gold (BG) background; 21006 to 21010 are selections carrying the Sunshine trait (yellow-green leaves). One of these (21009M) is a male. These genotypes are of potential use for genetic studies. Genotypes 21011 and 21012 are selections made by Dr. Skotland at the Prosser, Washington Experiment Station; 21011 (L16) is a late maturing, good yielding Late Cluster, that has also shown great tolerance to two-spotted spider mite infection. Another genotype, 21012 (E21),is an Early Cluster selection that definitely matures earlier than Early Cluster. (Table 1). Crosses made in 1969 The crosses made at Corvallis in 1969 are summarized in Tables Table 2 lists the crosses made for plant breeding purposes. There were four main objectives: 1) improving downy mildew resistance of the Yakima Cluster (YC) variety (crosses No. 6901, 6902, 6903); 2) breeding for high alpha acid (crosses No. 6904, 6905, 6906); 3) improved yield potential, mildew resistance and alpha acid content (crosses No. 6907 and 6908); and 4) triploids with European background and improved alpha acid content (crosses No. 6909 and 6910). In addition, two male selections (6616-61 and 6669-09) were identified by Mr. Likens as high alpha potential males with good storage stability. Therefore, storage stability will also be a selection criterion in seedlings from crosses 6905, 6906 and 6910. 2 and 3. Good seed set was obtained with all crosses. Extra seed of crosses No. 6901, 6903, 6904, 6905 and 6906 was made available for work at Prosser, Washington. Crosses for genetic purposes (Table 3) include No. 6911 and 6912 (inbreeding through brother - sister mating), studying the viability of pollen from tetraploid male seedlings such as 6668-01 (crosses No. 6913, 6914, 6915, 6916 and 6917), 6751-98 (crosses 6918, 6919, 6920 and 6921), 6752-59 (crosses 6922, 6923, 6924 and 6925), and 6769-12 (crosses 6926, 6927 and 6928). Good seed set was obtained in nearly all of these crosses. Total number of seeds obtained varied from 25 seeds (cross 6926) to 2,227 seeds (cross 6917). Most crosses yielded several hundred seeds (about 5-7 seeds per cone). Seed weight (Table 3) varied from 6.53 mg per seed (cross 6916) to 2.14 mg per seed (cross 6914). Seedlings will be sub-sampled and checked for chromosome numbers. In addition, triploid progenies from the Yakima Cluster and Brewers Gold crosses will be channeled to the breeding program to select for triploid types with characteristics similar to the female parent. Table Acc. No. 1. Accession Numbers Assigned in 1969. Source Pedigree Remarks 21001 Commercial Fu. Yd., Oregon Unk. coll. by C. E. Zimmermann in 1961, called "FR2" diff. from Fu. 21002 USDA hop yard, Corvallis Unk. coll. by C. E. Zimmermann from Fu Block in 1965, called "FGA" diff. from Fu. 21003 Ore. Fuggle (Acc. No. 19209) Tetr. female, obt. by A. Haunold in 1966 by colchicine doubling of chromosomes. Originally 4 sister clones called Ti, T2, T3, & T4, which were pooled in 1969. 2n=40 chrom. low vigor 4 yield 21004 Sel. No. 6619-01 BG x (BG x Fu-FuS) high a potential 21005 Sel. No. 6659-03 [BG x (BG-EKG-BavS)] x (BG x Fu-FuS) high a potential 21006 Sel. No. 6735-04 19137 x male seedling of cross 6159; Su 50S x (Ut 523-4 x EG-XS) yellow leaves, sunshine trait 21007 Sel. No. 6735-05 ft 21008 Sel. No. 6735-01 21009M Sel. No. 6735-02 21010 Sel. No. 6735-03 21011 L16, Prosser, Wash. 21012 E21, Prosser, Wash. It sister of 21006 it brother of 21006 it Sel. by C. E. Skotland from a Wash. Late Cluster It Early Cluster sister of 21006 L. matur., Cl. qual. V. early, Cl. qual. -9- Table 2. Crosses made for plant breeding purposes. Cross Pedigree No. 6901 65102 x 64032M YC x 2L118-0P 6902 x 64033M ; YC x 2L118-0P 6903 6904 ; " 6906 6907 6908 6909 6910 158:1-17 DM res; =Z. seedl. 37:1-4 a; x 6616-61; (Su2SS-Ut524-2)x(BG x Fu-Colo2-1) a + storage x 6669-09; (Su25S-Ut524-2)x Gosch Bu-OP a + storage 19105 x 6616-61; (LGpS x Fu-FuS)x(BG x Fu-Colo2-1) It Reason & Remarks ; ; It Location of x 64037M YC x 7K491-0P 62013 x 19039M (Su25S-Ut524-2)x FuS-RVS 6905 Corvallis, 1969. 35:19-20 DM res + a 29:22-25 Tripl. + x 6669-09; (LGpS x Fu-FuS)x Gosch Bu-OP 21003 x 19039M ; Fu tetrapl. x FuS-RVS x 6616-61; Fu tetrapl. x(BG x Fu-Colo2-1) a Crosses made for genetic purposes. Table 3. Corvallis, 1969. 1969 Cross No. No. of Location of9 Pedigree Side- No. seeds Tot. wt. Wt. per arms :cones:seeds per cone of seed seed Remarks mg 6911 22:14 6912 6720-14 x 6720-22; (Fu x SSp-LCS)2 4 3.358 6720-14 x 6720-23; (Fu x SSp-LCS)2 4 13.810 inbreeding 6913 160:1-17 19001 x 6668-01; BG x [[XS x(Fu x EG-ECS)]x OP] 3 178 1745 9.80 6.521 3.74 6914 37:5-8 19004 x 6668-01; XS x [[XS x(Fu x EG-ECS)]x OP] 4 77 263 3.42 0.564 2.14 64107 x 6668-01; NB x [[XS x(Fu x EG-ECS)]x OP] 2 11 88 8.00 0.289 3.28 6916 6511 x 6668-01; (BG x EG) x [[XS x(Fu x EG-ECS)]x OP] 2 47 205 4.36 1.339 6.53 6917 L8 x 6668-01; YC sel x [[XS x(Fu x EG-ECS)]x OP] 3 241 2227 9.24 11.031 4.95 6915 Smith viabil.IV poll; tripl. 1 ,--, c) 6918 160:1-17 19001 x 6751-98; BG x [XS x(Fu x EG-ECS)] 2 127 702 5.53 2.317 3.30 6919 Smith 64107 x 6751-98; NB x [XS x(Fu x EG-ECS)] 3 33 148 4.48 0.322 2.18 6920 It 65011 x 6751-98; (BG x EG-XS)x[XS x(Fu x EG-ECS)] 2 70 260 3.71 1.134 4.36 Table 3. Cont. 1969 Cross No. 6921 Location of 9 Smith No. of Pedigree Side- No. seeds Tot. wt. arms:cones:seeds per cone of seed Wt. per seed g mg L8 x 6751-98; YC sel x [XS x(Fu x EG-ECS)] 2 80 572 7.15 2.869 5.02 Remarks viabil.IV poll; tripl. 6922 160:1-7 19001 x 6752-59; BG x [XS x(Fu x EG-ECS)] 2 66 417 6.32 1.576 3.78 692 3 Smith 64107 x 6752-59; NB x [XS x(Fu x EG-ECS)] 2 18 138 7.67 0.471 3.41 65011 x 6752-59; (BG x EG-XS)x[XS x(Fu x EG-ECS)] 2 48 175 3.65 0.816 4.66 L8 x 6752-59; YC sel x [XS x(Fu x EG-ECS)] 2 119 821 6.90 4.177 5.09 ?I 6924 6925 it I 6926 37:5-8 19004 x 6769-12; XS x (Fu Tetr.-FuS) 3 9 25 2.78 0.066 2.64 II 6927 Smith 65011 x 6769-12; (BG x EG-XS)x(Fu Tetr.-FuS) 2 70 326 4.66 1.301 3.99 I/ 6928 II L8 x 6769-12; YC sel x (Fu Tetr.-FuS) 2 83 455 5.48 1.972 4.33 6668-01 x 6668-01;1[XS x 5 25 199 7.96 0.916 4.60 selfing of cloned IV O' 5 5 0 0 0 0 selfing of bagged IVO' 6929 29:9-12 (Fu x EG-ECS)]x ON® 6930 25:6 6751-1340; [[XS x (Fu x EG-ECS)]x 013)0 Table 3. Cross No. Cont. 1969 Location of No. of Pedigree Side- No. seeds arms:cones:seeds per cone Tot.wt. of seed Wt. per seed g mg Remarks II/ 6931 26:8 6751-261 0 ; [[XS x(Fu x EG-ECS)]x OP] 5 11 3 0.27 0.008 2.67 selfing of bagged 6932 37:5-8 19004 x 6772-20; XS x (Fu Tetr. x Fu-FuS) 2 3 2 0.67 0.003 1.50 viabil. III poll ondipl. 6933 Smith 65011 x 6772-20; BG x EGXS)x(Fu Tetr. x Fu-FuS) 2 47 80 1.70 0.466 5.83 It II L8 x 6772-20; YC sel x (Fu Tetr. x Fu-FuS) 2 95 356 3.75 1.266 3.56 II II 6659-170) ; [[BG x (BG x EKG-BavS)]x(BG x Fu-FuS)] 9 4 4 1.00 0.021 5.25 6934 6935 29:7 selfing of bagged III -13- The tetraploid selection, 6668-01, is a monoecious, predominantly male, plant with female flowers at the tips of the sidearms. It was grown in four hills in 1969. Pollen frbm one clone was used to fertilize bagged cones on a sister clone. This is actually self-pollination, which resulted in 199 well-developed seeds and a seed set of 7.96 seeds per cone (cross No. 6929, Table 3). Seeds will be germinated in 1970 and checked cytologically. Most should be tetraploids if meiosis on the male and female side was normal as expected. Selfing of a bagged sidearm, which contained both female and male flowers (cross 6930 and 6931), was almost a complete failure, probably because there is about a two to three week interval between pollen shedding and receptiveness of the female inflorescences. When female flowers on a given sidearm are receptive, pollen shedding is still two to three weeks off; and when pollen does become available, the female is no longer receptive. When pollen from triploid monoecious plants was used on a diploid female (crosses No. 6932, 6933, and 6934), or a monoecious sidearm was bagged for selfing (cross 6935), seed set was very low. The only exception was cross No. 6934 which produced 356 seeds on 96 cones (Table 3). Seedlings will be checked cytologically and most are expected to be aneuploids. 1967 seedling nursery The 1967 seedling nursery was evaluated for the second year in 1969. Most of the plants appeared to be low in vigor and some did not even reach the cross wire. Only one selection, 6635-38, was saved for the germ plasm block at Corvallis. It is an early maturing female plant with a pronounced red strig. Other selections by Mr. Zimmermann for testing at Prosser, Washington are listed in Table 4. Although none of these looked particularly promising in the two years of observation at Corvallis, they did exhibit some desirable traits and additional testing under a different environment seems warranted. 1968 seedling nursery The 1968 seedling nursery, consisting of over 700 genotypes plus appropriately spaced check varieties throughout the nursery (Brewers Gold and E2), was planted at 31/2 foot spacing in the main yard on April 30, 1969 (Table 5). The seed bed was excellent and plants got established very well with almost no losses. Seedlings were trained on a single string and preliminary information on sex expression and downy mildew reaction was obtained. Selections from this material will be made in 1970. Approximately 100 genotypes from this group (Table 5a) were selected by Mr. Zimmermann for planting at Prosser, Washington in 1970. They all are seedlings from crosses with E2, Yakima Cluster, Brewers Gold, or Bullion, respectively, and detailed data on this material from Prosser as well as Corvallis will be obtained. Table 4. Sel. No. Female Selections from the 1967-Seedling Nursery (SN-67), Corvallis, 1969. Spring 1968) (Planted Main Yard: Purposel/ Date of Cross cross wire JDne 1969 Location Pedigree KOW H111. 8 30 ft aAMR 11 28 0 aAMR 2 25 0 /I aAMR 15 22 0 /I 64100 x OP; Bu x OP AR 11 30 0 19038 x 51101M; LGp-FuS x 51101M 19038 x 54066M; LGp-FuS x (XS x FuS-RVS) 52043 x OP; [(Fu x EC-ECS) x AR 3 20 0 early;Sv. DM Disc. AR 3 26 0 Fu type AR 7 20 0 Sv. DM Disc. 1 7/15 7/10 0 0 0 0 0 vig.; late L. Cl; Sv. DM Disc. poor SA 64100 x 19043M; Bu x (Bel Burv-FuS) -27 18:51 6625-01 2:52a 6626-01 18:54a 6628-01 20:50a 6630-05 21:52b Sarre Prosser 16:51 19:52b Remarks' 20 6622-11 6623-05 Disposition 2 64100 x 51114M; Bu x 51114M -09 Virus aAMR aAMR 13:50a 14:50a 6621-01 Date 25% flow. I/ 64100 x 19037M; Bu x (FuS- 'V good picker Bu; good picker rich; weak SA E; open cone shatters FuS) (Fu- BFav)]x OP 6635-17 -22 -25 -34 -35 -38 5:50a 5:53 6:50a 7:50b 59008 x OP; EC x OP 7:51 7:53 6636-05 23:54a 6636-06 23:54b 62002 x 51114M; (Ut525-4 x Ut527-1)x 51114M a a a a a a 20 4 5/30 5/29 5/28 20 27 7/1 10 It AR 8 20 0 AR 9 29 0 late very late VE; red strig. early; Fuggle It late; lup. Table 4. Sel. No. Cont. 1969 Purpose-1j Location Pedigree Date 25% flow. June Virus AR 10 19 0 AR 12 28 0 Fu type; Sv. DM Disc. MR 11 7/14 0 good cone;mod. DM MR 6 28 0 Fu type;Sv. DM Disc. a a a 6 11 0 9 6 7/13 20 0 0 good; high lup late; high lup two plants Row I Hill 6642-07 25:54a 6645-02 14:52a 6650-13 27:54a 6656-04 8:52a 6669-10 10:51 10:52b 12:52b -12 -28 19124 x OP; (Fu x SerebrFuS) x OP 19164 x OP; (Fu x Bel 31SBel 31) x OP 19200 x 54066M; Urb-LCS x FuS-RVS 48209 x OP; FuH x OP 66030 x OP; Goschie Bu x OP II tt Date cross wire June of Cross 1./ J AR = aphid resistance; MR = mite resistance; a = high a acid content. E = early; L = late. Disposition Prosser RemarksV Fuggle -16- Table 5. Corvallis, 1969; 1968 Seedling Nursery (SN68). (Planted April 30, 1969). Location Sel. No. Source 30:42a-64b 31:42a-64b 32:42a-64b 33:42a-64b 34:42a-64b 6701-01 to 35 6701-36 to 68 6701-69 to 103 6701-104 to 135 6701-136 to 142 Cr6701 34:46b-52a 6702-01 to 09 Cr6702 65103 x 51114M; E2 x[(LhS x GC1-FuS) x (SemschS x 8-2 BYd)] 34:52b-64b 35:42a-52a 6703-01 to 19 6703-20 to 34 Cr6703 65013 x 63015M; E2 x[BG x (BG x EKG-BavS)] 35:52b-64b 36:42a-64b 37:42a-64b 38:42a-64b 39:42a-64b 40:42a-54a 6704-01 to 18 6704-19 to 53 6704-54 to 85 6704-86 to 120 6704-121-to 153 6704-154-to 172 Cr6704 65102 x OP; YC x OP 40:54b-64b 41:42a-46a 6705-01 to 16 6705-17 to 22 Cr6705 41:46b-63 6706-01 to 24 Cr6706 65102 x 51114M; YC x[(LhS x GC1-FuS) x (SemschS x 8-2 BYd)] 41:64a-64b 42:42a-55 6707-01 to 02 6707-03 to 23 Cr6707 65102 x 63014M; YC x(BG x Ut526-4) 42:56a-64b 43:42a-42b 6708-01 to 14 6708-15 to 16 Cr6708 65102 x 63012M; YC x (BG x Ut526-4) 43:43-57 6709-01 to 20 Cr6709 65102 x 63013M; YC x (BG x Ut526-4) 43:58a-64b 44:42a-64b 45:42a-46b 6710-01 to 11 6710-12 to 46 6710-47 to 53 Cr6710 65102 x 63015M; YC x[BG x(BG x EKG-BavS)] 45:47-50b 6711-01 to 06 Cr6711 19001 x 63015M; BG x[BG x(BG x EKG-BavS)] 45:51-64b 46:42a-45 6712-01 to 19 6712-20 to 25 Cr6712 19001 x 63012M; BG x (BG x Ut526-4) 46:46a-56b 6714-01 to 17 Cr6714 Pedigree 65103 x OP; E2 x OP It 11 It /1 /I 65102 x 19040M; YC x Fu-FuS // 11 I/ 1/ II It It II 11 19001 x 63014M; BG x (BG x Ut526-4) -17- Table 5 Location cont. Sel. No. Source Pedigree 46:57-64b 47:42a-47 6715-01 to 12 6715-13 to 21 Cr6715 47:48a-64b 48:42a-58b 6716-01 to 24 6716-25 to 50 Cr6716 48:59-64b 49:42a-54a 6717-01 to 09 6717-10 to 26 Cr6717 49:54b-62b 6718-01 to 12 Cr6718 64100 x 63015M; Bu x[BG x(BGxEKG-BavS)] 49:63-64b 50:42a-44a 6733-01 to 03 6733-04 to 07 Cr6733 19151 x 19041M; (Fu x RV-XS)x(EG-XS) 50:44b-46b 6736-01 to 04 Cr6736 64100 x 63014M; Bu x (BG x Ut526-4) 91 tl II 64100 x 63013M; Bu x (BG x Ut526-4) It it It 64100 x 63012M; Bu x (BG x Ut526-4) It 11 I/ 19208 x 19040M; LC x Fu-FuS 11 -18- Table Sa. Selec. No. 6701-01 -02 -12 -14 -17 -24 -27 -31 -39 -44 -54 -55 -60 -67 -68 -111 Evaluation of Hop Selections for Prosser from 1968 Nursery; Corvallis, 1969. 1969 Location 30:42a 1/ Purpose DMR DM - DISC. 50b 52b 57 59 DM - DISC. 62a 31:44a 47 54b 55 60a 64a DM - DISC. 64b 33:47 34:50b 6703-02 34:53 low lup. SMR E2 x 51114M aDMR E2 x 63015M 11 -21 -30 60b 35:42b 48b 6704-01 35:52b DMR -05 -06 -13 -33 -38 -45 -52 -58 -63 -65 -66 -93 -94 -105 -120 -124 -138 -147 -153 -158 -164 -167 Comments E2 (Cluster) x OP :42b 49 6702-07 -13 Cross 55 tl 9 Yakima Cluster x OP It 56a 61 36:51 54b I/ 91 59 64a 37:44b 48b 50a 50b 38:46b 38:47 54b 64b 39:44a 54a 60b 64b 40:44b 48b 50b 91 91 tt DM - DISC. 11 It It It ft 11 It DM - DISC. DM - DISC. -19- Table 5a, cont. Selec. No. 6705-07 -11 -15 6706-03 -22 -23 6707-04 1969 Location 40:58b 1/ Purpose Cross DMR Yak. Cluster x 19040M It 61 64a 41:48b 62a It SMR 11 Yak. Cluster x 51114M 62b 42:42b 48a aDMR -12 6708-01 42:56a aDMR Yak. Cluster x 63012M 6709-01 -08 43:43 43:48a aDMR Yak. Cluster x 63013M -10 -20 50a 56b 6710-01 43:58a 44:46b 48a -19 -21 -23 -32 -38 -49 6711-01 -03 6712-01 -03 -06 -10 -11 -13 -21 -25 49 55 59 Yak. Cluster x 63014 weak SA 11 11 aDMR Yak. Cluster x 63015M /1 It It t/ // 45:43 47 48b BC-a Brewers Gold x 63015M 45:51 52b BC-a Brewers Gold x 63012M 11 I/ 55 58a 58b 60a 46:42b /1` 'I 46:48b -08 50b 6715-02 46:58a 60a 64a 47:42a 42b 43 no lup; DM -DISC. DM-DISC. DM-DISC suscept. to aphids 11 45 6714-05 -OS -11 -13 -14 -15 Comments BC-a a Brewers Gold x 63014M DM-DISC. DM-DISC. Bullion x 63014M DM-DISC. lup on strig. 11 11 11 If -20- Table 5a, cont. Selec. No. 6716-08 -13 -17 -28 -32 -40 6717-06 -07 -08 -11 -13 -15 -16 -18 1969 Location 47:53 56b 60a 48:44a 46b 52a a 48:62b 63 64a 49:42b 44a 46a a It 46b 48a /I -21 -22 -26 50a 6733-02 49:64a 50:42b -05 1/ 11 Purpose Cross Comments Bullion x 63013M It 'I It II 11 t DM - DISC. DM - DISC. Bullion x 63012M high alphid It count I' It /I I/ tl 50b I/ 54a Genetic DMR = downy mildew resistance SMR = spider mite resistance a = high a-acid BC = backcross 19151 x 19041M t/ no lup. -21- Advanced observation nursery Twenty-five selections from the seeded observation nursery (see 1968 report, pages 9, 10, 19 and 20) were grown in a 10-hill advanced observation nursery in the seedless yard in 1969 (Table 6). They were evaluated as baby plants in 1969 and 11 of the original 25 selections could be discarded on the basis of diseases (downy mildew, virus) and poor growth and vigor. The remainder is listed in Table 6. Generally there are two basic types, continental and extract, and some that are suitable both as a continental and extract type hops. Several continental types showed excellent yield potential (eg. 64002, 64003, 64007), but were low in quality, primarily alpha acid. Others appear to be good yielders with acceptable quality (6517-47, 6527-17). Some genotypes (eg. 63032, 64026, 6503-25) had European aroma characteristics but were relatively high in alpha acid and thus suitable as extract hops. These are marked as cont-ext. Extract types generally were higher in alpha acid than the continental types and some (eg. 63032, 65009, 65011, 6532-14) showed exceptionally high alpha acid potential. However, all except 63032 have a strong Brewers Gold background. We will attempt to accumulate such high alpha types that are not related to Brewers Gold in order to have a broader genetic base for selection of extract types, and perhaps also obtain better storage stability than Brewers Gold. Female and male breeding blocks Females Genotypes grown in the female breeding block at Corvallis in 1969 are summarized in Table 7. This material, grown in four-hill plots, includes' old established varieties such as Bullion, Brewers Gold, Fuggle, Early and Late Cluster, Talisman, and recently introduced foreign varieties such as Pride of Ringwood, Ringwood Special, Northern Brewer, etc., a collection of Wild American hops collected in 1960, and various unnamed genotypes that are of potential use for hop breeding. Over 20 entries in this block were newly planted in 1969 and data from these baby plants are sketchy. Some genotypes in the female breeding block showed severe virus symptoms and they were discarded. These are: 54029, 19004, 63001, 63004. Genotype 21005 (Selection 6659-03),which had received an accession number in 1969, was rated very susceptible to downy mildew on the basis of a 20-plant greenhouse test by Dr. Horner. A crown dug in the field, however, was clean and, therefore, this genotype will be retained for further testing. At pruning time in early 1969, data on systemic crown infection by downy mildew were obtained and some genotypes were found to be completely infected (4/4). These were 60021, 60037, 60040. Surprisingly, Hallertau (56001) showed no crown infection at all and Early Cluster (59008) only had two of four hills infected. Conceivably these genotypes may not be Hallertau or Early Cluster, respectively. Split leaf virus was evident Table 6. Advanced Observation Nursery Grown at the Seedless Yard, Corvallis, 1969. Diseases) Acc. or Sel. No. 63032 64002 64003 64007 64024 64026 65002 65009 65011 6503-25 6517-46 Pedigree 56002 x 58015M; BaCka x Ut526-4 19105 x 19173M; (LGS x Fu-FuS)x SSp-LCS I II DM:Virus:Vert. Quality Vigor Matur. Cone type Comp. G VG M Loose P G 0 G 0 0 0 M 0 0 19105 x 19058M; (LGS x Fu-FuS) x EG-XS 19001 x 19001-19062M; BG x(BG x EKG-BavS) 19001 x 19182M; BG x (Bu x B 31S-B 31) 19208 x 19058M; LC xEG-XS 0 0 0 M-G M-L Comp. Comp. 0 0 G M Comp. 0 0 0 P M loose 0 0 0 19001 x 19058M; BG xEG -XS P ? 0 loose Comp. 0 P 0 0 0 0 M M M M G 0 0 M M Comp. M-G M 0 0 G 0 0 M M M Comp. Comp. M 0 0 M VG Iv 19209 x I9173M; Fu x SSp-LCS 56001 xeseedl. of Cr5937; Pick. M-L YF 0 April, 1969. Planted: M-P - Comp. - a B Oil % % ml Yield Remarks WA aroma, ContExtr. 11.8 6.5 2.1 P 3.9 4.5 1.1 VG Cont. 3.2 7.2 1.2 5.1 4.3 0.9 G Cont. VG 7.7 3.6 2.5 G Extr. 7.0 7.2 M Cont. -Extr. G M WA aroma, Extr. BG type, Extr. G P Extr. Cont. - Extr. 8.0 13.1 12.1 7.0 - 6.8 1.3 9.3 7.8 2.3 3.1 0.8 Cont., VG 6.1 4.7 0.6 G-P Cont. 6.1 4.6 1.0 5.5 4.9 1.1 G G Cont. Cont. G Extr., g. set Ha x (Ha x Fu-FuS) 6517-47 6527-17 6532-14 1/ 60007 x 19173M; (Su25S x EG-XS) x SSp-LCS 63018 x OP [BG x (BG x EKG-BavS)] x OP YF = yellow fleck G = good, M = medium, P = poor M = medium, L = late M-P G G 13.0 4.4 - Table 7. Acc. or Sel.No. 19001 19004 19110 19120 19137 19151 19185 19200 19208 19209 Summary of Female Genotypes Included in the Breeding Block. 1969 Plot No. 39:9-12 37:5-8 35:1-4 43:1-4 44:1-4 33:5-8 34:1-4 38:1-4 34:9-12 35:9-12 Pedigree Brewers Gold Unknown S XS x Bel 31S-Bel 31 Su 25S Su 50S Fu x RV-Unknown S LGpS x FuS-RVS Urbann x LCS Late Cluster Fuggle 21002 21004 21005 42:5-8 39:5-8 40:5-8 48209 50024 52018 54029 41:1-4 33:9-12 45:1-4 39:1-4 FGA BG x (BG x Fu-FuS) [BG x(BG x EKG-BavS)]x (BG x Fu-FuS) Fuggle H Els-FuS x EKG-BavS [FuS x(LhS x GC1-FuS)]x OP (LGp-ECS x Tet Fr-FuS)x XS 56001 56002 56008 56012 56013 57011 58001 58004 58016 58112 59008 36:9-12 37:9-12 54:1-4 41:5-8 33:1-4 35:5-8 53:9-12 54:9-12 52:9-12 42:1-4 38:9-12 Hallertau ? Backa Unknown x (Fu X EG-ECS) (Fu x RV-XS)x(EG-XS) (Fu x Sereb-FuS) x OP (Bu x RV-XS) x LC-FuS W AM. Utah 523-1 " " 523-4 I, " 526-5 (Bu x Fu-FuS) x OP Early Cluster ? Diseases Cross DM Virus) wire Apr. June June 0/4 0/4 25% 17 7/8 YF2;SL1 11 SL1 0 27 13 20 7/17 25 7/6 26 26 1/2 0 10 2/3 0/4 SL2 SL3 5 0 0 0 12 7/17 7/6 7/10 7/3 25 26 baby baby 0/2 0/4 0/4 SL1 0 12 1/4 YF2 0/4 0/4 SL1 SL1 0 0 7/14 L 10 10 13 8 7/6 28 7/7 7/4 7/6 7/3 7/6 11 SL1 SL1 10 0 VL VL M M M SL3 SL1 L M M M-S M M M M 30 0 0/4 0/4 0/2 0/2 2/4 M M 7/15 7/10 7/12 5 0 0 Cone 2 flow, size June SL1 0/4 0/4 Corvallis, 1969. 12 8 12 7/10 7/16 7/4 7/9 L VS L Mature1/ a L 48.5 31.5 37.3 52.9 47.6 18.4 38.4 2.18 0.94 0.88 2.98 2.27 0.44 2.05 1.33 1.46 1.74 43.1 59.7 51.8 45.9 22.6 22.0 20.7 25.1 1.91 2.72 2.51 1.83 27.7 37.3 44.7 43.4 42.0 33.7 32.4 45.9 27.7 32.4 32.6 0.86 0.81 37.1 L 35.2 36.4 38.3 41.7 0.91 0.92 0.87 E E L 50.5 48.2 22.4 33.7 2.25 1.43 L VE E L L L M VE E 54.8 46.6 48.9 E M VL E L M M VE L L L S L VL VL VL L M va 22.3 33.4 42.2 17.7 21.0 42.1 26.7 35.2 33.5 22.1 M VL S-M a % M M S-M Quality E 1.61 1.34 1.29 Table 7 cont. 1969 Sel.No. Plot No. Acc. or Pedigree 60014 60015 60016 60017 60018 60020 60021 60024 60025 60027 60029 60032 60033 60034 60035 60037 60038 60039 60040 60041 60042 60043 47:1-4 48:1-4 49:1-4 50:1-4 51:1-4 52:1-4 53:1-4 46:5-8 47:5-8 48:5-8 49:5-8 50:5-8 51:5-8 52:5-8 53:5-8 46:9-12 47:9-12 48:9-12 49:9-12 50:9-12 46:1-4 Wild Am. Ariz. 1-3 Ariz. 1-4 " " it " N. Mex. 1-3 t/ N. Mex. 2-1 " N. Mex. 2-2 " II New Mex. 2-4 " II " N. Mex. 3-1 Colo. 1-2 " Colo. 1-3 " 11 " Colo. 2-2 If " Colo. 3-1 Colo. 5-1 " II " Colo. 6-1 It Colo. 7-1 " Colo. 7-2 " 11 Wyo. 2-1 " Wyo. 3-1 " If " Mont. 1-1 It Mont. 2-1 " 1/ Mont. 3-1 " Shinshuwase Wild Am. N. Mex. 3-2 61021 62013 62052 63001 63004 63006 63008 36:5-8 37:1-4 40:1-4 44:5-8 54:5-8 31:1-4 43:9-12 Hallertau S (=Swiss) Su 25S x Ut WA 524-2 Density BuX x EKG-BavS Ha x (Bu x Bel 31S-Bel 31) BG x Ut 526-4 BG x Fu-FuS 43:5 -S It ,, ,, ,, ,I II Diseases DM Virus Apr. June 2/4 2/4 2/4 ?/4 3/4 1/4 4/4 0/4 0/4 0/4 0/4 0/4 1/4 0/1 1/4 4/4 0/4 2/4 4/4 0/1 0/4 0 0 SL1 Cross wire June 21 8 June 7/16 7/11 17 22 28 30 25 27 0 0 0 0 Cone2j Ma- 3/ 25% ture-' a flow. size 27 299 0 6/16 0 25 30 SL1 0 SL1 SL1 0 0 SL2 SL1 SL1 SL1 SL1 SL1 0 0 0 0 SL2 SL1;YF1 baby baby 7/16 29 27 27 6/5 7/17 7/3 24 30 6/7 7/17 26 7/7 7/12 7/7 27 7/1 7/13 21 26 8 16 7/16 6/4 7/10 % M-S M-S VL VL VL VL M VL VL VL VL VL VL L L VE M L M VL VE VE E VE VE S E L M M M-S L M VS L VE L L L VL M L L L 7/16 M M 20 30 L L VS VL M M M M M L 7/16 7/10 7/18 Quality M M 13 a/a %- 40.9 46.1 48.7 41.1 47.6 28.1 55.0 41.6 40.5 20.3 48.6 60.0 28.7 31.4 34.2 45.7 21.5 47.5 52.9 48.3 42.4 32.9 40.4 40.2 32.1 35.5 23.4 38.2 22.0 28.3 28.8 37.5 27.9 16.6 39.1 27.5 30.9 33.5 38.5 32.3 31.2 32.5 33.6 40.7 1.01 1.15 1.52 1.16 2.03 0.74 2.51 1.47 1.41 0.54 1.74 3.61 0.73 1.14 1.11 1.36 0.56 1.47 1.69 1.49 1.26 0.81 45.0 52.9 46.5 41.4 32.7 54.4 39.4 34.1 23.0 29.1 33.7 39.5 24.0 32.6 1.32 2.31 1.60 1.23 0.83 2.26 1.21 Table 7. Acc. or Sel. No. cont. 1969 Plot No. Pedigree 63018 63019 63020 63021 63027 41:9-12 42:9-12 45:9-12 44:9-12 45:5-8 BG x (BG x EKG-BavS) 64008 64009 64010 64100 64107 65101 65102 65103 66052 31:5-8 31:9-12 32:9-12 40:9-12 32:5-8 36:1-4 34:5-8 38:5-8 32:1-4 Z Seedling Z Seedling Z Seedling Bullion Northern Brewer Talisman Yakima Cluster (L-1) E-2 (EC selection) Pride of Ringwood ft If Diseases Cross DM Virus 11 wire June Apr. June 25% Cone Ma2/ flow. size-4 ture- 0/4 0 1/4 SL1 12 10 27 7/12 10 25 7/17 S S S S 7/2 25 7/16 7/16 7/14 M-S VS M M M 25 M L 7/8 7/15 7/3 M-S M L L L L M E L L 11 SL = Split leaf; YF - Yellow fleck: .?" S = Small, M = Medium, L = Large 2/ E = Early, M = Medium, L = Late 1/4 0/1 SL1 SL1 baby 0 0 0/4 SL1 10 0 0 0 0 0 0(=best) to 4. 7/14 7/5 7/9 18 a a/B June baby BG x Fu-FuS BG x Fu-FuS Quality a 7/15 7/11 M-L L L L VL L L 34.8 53.1 52.9 36.6 49.6 30.5 27.0 23.0 39.6 36.6 1.14 1.97 2.30 0.92 1.35 45.4 45.7 32.3 30.2 37.1 23.0 19.2 27.7 33.6 32.7 29.2 1.41 1.51 35.9 48.2 51.0 52.8 48.0 45.7 48.0 0.97 2.10 2.65 1.90 1.43 1.40 1.64 Table 8.. Male Genotypes Grown in the Breeding Block. Acc. or Sel. No. Corvallis, 1969. Diseases) Cross Location Row/Hill Pedigree DM/Virus 19005 19006 19007 19008 19009 19010 19036 19037 19039 19040 M M M M M M M M M M 33:13-14 34:15-16 44:13-14 40:15-16 45:15-16 48:15-16 54:13-14 36:15-16 38:15-16 39:15-16 Late Cluster S Hybrid 3 or 4 Brewers Favorite S Semsch S x 8-2 Br Yard Fu x FuS RV x FuS LC x FuS FuS x FuS FuS x RVS Fu x FUS 0/2 2/2 1/2 0/2 0/2 0/2 0/2 0/2 0/2 0/2 SL2 SL1 SL1 19041 19043 19044 19046 19047 19048 19050 19051 19054 19058 M M M M M M M M M M 47:13-14 48:13-14 49:13-14 50:13-14 51:13-14 52:13-14 38:13-14 40:13-14 43:13-14 34:13-14 EG x Unknown S Bel Bury x FuS Fu x FuS LCS x FuS His x FuS FuS x RVS Fu x FuS Burgunder S x FuS EKG x BavS EG x Unknown S_ 0/2 0/2 0/2 0/2 0/2 0/2 1/2 1/2 0/2 0/2 SL1 SL1 19060 19061 19062 19085 19170 19172 19173 19182 19183 51060 M M M M M M M M M M 35:13-14 37:13-14 36:13-14 39:13-14 54:15-16 33:17-18 34:17-18 35:17-18 36:17-18 42:13-14 EKG x BavS Late Gp x FuS 0/2 0/2 0/2 0/2 0/2 0/2 0/2 0/2 0/2 0/2 SL1 SL1 SL1 SL1 SL1 SL1 SL1 SL2 SL1 SL1 ft ft Landh S x Gold Cl - FuS Unknown x (EKG x EK-KGS) Cats Tail x Fu - FuS Str Sp x LCS Bu x Bel 31S - Bel 31 Fu x EG - ECS Verte S - LCS x Late Gp - FuS 0 0 SL1 SL1 SL1 SL1 SL1 0 SL1 0 0 SL3 SL3 SL2 SL2 wire June 21 18 16 25% flow 7/14 7/8 7/25 30 7/2 7/9 5 25 24 7/4 9 30 13 7/8 12 13 17 7/7 7/8 9 5 12 12 29 8 12 9 13 8 a +8 a/a 66.3 68.6 51.4 63.6 70.8 57.8 77.3 0.17 0.31 0.42 June 10 9 Quality a 30 7/9 7/7 30 7/9 7/7 7/15 7/9 7/7 7/6 7/7 7/8 18 7/2 30 12 7/17 11 7/6 20 9.7 16.2 15.3 40.5 18.7 29.8 12.9 23.1 35.2 38.8 56.7 52.4 30.8 20.1 41.9 11.8 37.8 45.0 19.8 17.9 40.8 33.4 51.9 29.6 32.0 59.6 33.1 30.3 57.3 59.0 30.5 49.3 82.7 49.7 73.0 71.4 70.9 75.3 77.2 76.9 71.3 82.7 0.59 0.68 32.6 11.9 37.5 28.9 36.4 32.0 23.9 42.5 38.4 9.3 45.2 60.6 35.9 53.4 39.9 26.9 46.0 23.3 32.9 60.7 77.8 72.5 73.4 82.4 76.3 58.9 69.9 65.7 71.2 70.0 0.72 0.20 1.05 0.54 0.91 1.19 0.57 1.82 1.17 0.15 36.1 23.1 52.1 28.0 64.4 50.0 24.3 29.7 73.1 59.5 68.5 1.75 0.36 1.06 0.20 0.46 1.45 1.30 1.31 0.20 1.14 1.48 0.35 0.30 1.34 0.68 Table 8. Cont. Acc. or Location Row/Hill Sel. No. Pedigree Diseases)" Cross DM/Virus wire June June 7/8 7/15 7/7 7/8 7/7 7/8 7/9 21 22 7/1 34.3 16.6 17.9 23.3 22.3 22.2 18.6 27.4 35.2 14.1 45.8 44.8 50.5 50.7 27.2 41.3 28.9 48.0 34.2 39.2 30 41.5 28.2 45.6 39.8 30.6 41.7 43.6 30.8 37.3 16.6 54.5 40.6 63.0 53.6 50.9 46.5 47.7 49.3 47.1 42.7 37.7 51061 51101 51114 52040 52042 52044 52045 52046 52047 52048 M M M M M M M M M M 41:13-14 46:13-14 45:13-14 42:15-16 43:15-16 46:15-16 47:15-16 33:15-16 35:15-16 37:15-16 [BG x(EKG x EG- KOS) ]x(Saml x Be131S-Be131) FuS x(Lh x Gold Cl-FuS) (LhS x Gold Cl-FuS)x(SemschS x8-2 Br Yard) [LhS-RVS x(SemschS x 8-2 Br Yard)]x OP Late Gp-FuS x Late Gp-FuS (Fu x Serebr-FuS) x OP (EKG x EG-KGS) x EG-Unknown S (Late GpS x FuS-RVS) x0P (Str Sp x EG-Unknown S) x Str Sp-LCS (LC x FuS-RVS) x OP 0/2 0/2 0/2 0/2 0/2 0/2 2/2 0/2 0/2 0/2 SL1 54066 58111 60013 60019 60023 60026 60028 60030 60031 63011 M M M M M M M M M M 41:15-16 53:13-14 38:17-18 39:17-18 40:17-18 41:17-18 42:17-18 43:17-18 44:17-18 37:17-18 Unknown x FuS-RVS [(BG x Be131S-Be131)x(Late Gp-FuS)]x OP Wild Am. Ariz. 1-2 Wild Am. N. Mex. 2-3 Wild Am. Colo. 1-1 Wild Am. Colo. 2-1 Wild Am. Colo. 2-3 Wild Am. Colo. 3-2 Wild Am. Colo. 4-1 Late Gp-FuS x EG-Unknown S 0/2 0/2 0/2 1/2 SL1 SL1 1/2 0/2 0/2 0/2 SL1 0/2 0/2 SL1 SL1 SL1 63012 63013 63014 63015 63016 63017 64101 64102 64103 64104 64105 M M M M M M M M M M M 45:17-18 46:17-18 47:17-18 48:17-18 49:17-18 50:17-18 53:15-16 49:15-16 52:15-16 51:15-16 BG x WA Utah 526-4 2/2 0/2 0 0 1/1 SL1 SL1 SL1 50:-15-16 II II " BG x(BG x EKG-BavS) BG x WA Utah 526-4 BG x (BG x EKG-BavS) Unknown Wild Am. x OP Wild Am. x OP Eastwell Gold x 321 Fu x 321 11 SL = split leaf; 0 = best, 4 = worst. 0/2 2/2 2/2 0/2 0/2 0/2 1/2 0/2 0 SL2 SL1 SL1 SL1 SL1 12 15 12 15 16 9 9 0 SL1 SL2 9 18 0 0 7/8 21 19 7/1 28 8 7/25 7/1 30 9 0 9 9 0 SL1 SL1 7/9 7/15 22 29 0 0 SL1 SL1 25% flow 11 '9 7/7 7/7 7/9 7/2 25 20 22 20 20 30 Quality a S (241- 80.1 ag3 53.3 0.75 0.37 0.35 0.46 0.82 0.54 0.64 0.57 1.03 0.36 49.2 32.0 28.9 45.8 31.7 37.4 34.7 44.0 42.8 72.6 77.4 77.5 50.7 76.4 73.4 81.1 65.5 81.3 59.4 1.33 0.57 1.43 1.38 0.67 1.31 1.17 0.88 0.85 0.39 24.5 33.8 17.1 22.0 23.3 28.6 23.0 31.0 38.1 17.1 32.6 79.0 74.4 80.1 75.6 74.2 75.1 70.7 80.3 85.2 59.8 70.3 2.23 1.20 3.68 2.44 2.18 1.63 2.07 31.1 61.4 68.4 74.0 49.5 63.4 47.5 75.3 69.4 1.59 1.24 2.49 1.16 DM = downy mildew: 0/2 = 0 infection, 2 hills; 1/2 = 1 of 2 hills infected. -28- throughout the nursery, but symptoms were generally mild (mostly SL1). Some genotypes, notably 58001, were severely infected and may have to be discarded. Mr. Likens and his staff collected lupulin from cones at maturity and analyzed them for alpha and beta content. This is valuable additional information, listed under the quality column in Table 7. Lupulin from some genotypes (19120, 19185, 50024, 60032, 60040, 62013, 63019, 63020) was very high in alpha acid and relatively low in beta acid, resulting in a favorable alpha/beta ratio. The highest alpha/beta ratio in this group was 3.61 for genotype 60032, a Wild American hop collected in Colorado. Other genotypes had a high beta acid content but were lower in alpha acid which resulted in a low alpha/beta ratio (eg. 19151, 56001, 56002, 58004, 60020, 60027, 60033, 60038, 60043, 63004). Several Wild American genotypes are found in this group also, including two from Colorado (60027, 60033). Other genotypes were identified that fell somewhere between the two extreme groups. In most cases, the combined alpha + beta values equalled or exceeded 70% of the lupulin, which indicates that lupulin glands used for the analysis were generally free of extraneous material (pollen, dust, etc.). Males Over 60 male genotypes were grown in a two-hill male breeding block in 1969 (Table 8). Some of these are open pollinated seedlings from named female varieties, but most are from planned crosses from our breeding program. Mildew data based on crown infection obtained at pruning time were taken. Only five genotypes showed 100% infection (2/2); namely, 19006M, 52045M, 63012M, 63016M, 63017M (Table 8). Some genotypes were low in vigor and failed to reach the cross wire. With exception of a few genotypes, virus infection (split leaf) was slight, but it was found throughout the nursery. A few severely virus-infected genotypes will be discarded in 1970. Resin glands were collected at pollen shedding time by a new technique developed by Mr. Zimmermann and Mr. Likens. They were subsequently analyzed for alpha and beta acid. Alpha plus beta acid values should account for about 70% of the lupulin, but in some genotypes this figure was much lower, eg. 19043M (50%), 52042M (50%), 52045 (48%). This may be due to pollen or dust impurities in the original lupulin collection. In other genotypes, however, the alpha plus beta total was well in excess of 80% (eg. 19058M, 19085M, 19041M, 64103M, 60028M, 60031M). The last two genotypes are Wild American males collected in Colorado. Alpha contents ranged from the lows of 9.3% (51060M) and 9.7% (19005M) to the high values of 63.0% (63014M), 54.5% (63012M) and 53.6% (63015M). All of the last three genotypes have a strong Brewers Gold background and two are crosses between Brewers Gold (19001) x Utah 526-4 (58015M). Unfortunately genotype 58015M is no longer in our germ plasm pool. The alpha/beta ratio, which perhaps is most meaningful, varied from lows of 0.15 (51060M), 0.17 (19005M), 0.20 (19061M, 19036M), to the high values of 2.49 (64104M), 2.44 (63015M), and 3.68 (63014M). -29- Female germ plasm nursery This nursery, consisting of over 80 genotypes in two-hill plots, is a germ plasm reservoir of potentially useful material collected over the years. It also includes some named foreign varieties. Good field notes on growth and disease reaction were obtained in 1969 (Table 9). A number of genotypes, most of them adjacent to each other in one portion of the field, showed severe virus symptoms (split leaf and yellow fleck). These genotypes were discarded and are not included in the Table. Mildew crown infection of most genotypes in this block was either mild or completely absent. Most plants reached the wire, including the ones severely infected with virus. Some genotypes in this nursery are still being carried under a selection number (eg. 6512-24, etc.). Some of these selections are monoecious plants with various amounts of male and female flowers. They are being retained for future genetic and chemical studies. Chemical quality data from isolated lupulin glands were obtained for a number of genotypes (Table 9), and again a wide range of alpha and beta acid values was observed. Genotype 19105 had the lowest alpha acid value and the lowest alpha/beta ratio, while Petham Golding (68052) had the highest alpha acid and the highest alpha/beta ratio. In no instance did the beta values approach the extremes found for alpha acid. Alliance (66050), an English variety, had very high alpha and the lowest beta values in the group, resulting in a very favorable alpha/beta ratio of 3.27. Genotype 53023 had the highest beta acid (52.2%). The proportion of high beta types in the germ plasm block (Table 9) is considerably higher than in the more advanced female breeding block (Table 7). This may be the result of the selection pressure for good alpha types in the hop breeding program over the past years. Genotype 61016, an unnamed clone recently introduced from Russia, had very low alpha and beta values (alpha + beta + 33.7%), which almost certainly cannot be solely attributed to sample impurities. This genotype will be retested again in 1970. Male germ plasm nursery (including backcross males) This nursery is also a pool of material potentially useful for breeding or genetic purposes. Relatively little is known about this material. Some genotypes which are presently grown in the "Backcross Nursery" (but are not from a backcross program) appear to possess excellent resistance to downy mildew. These genotypes (64032M, 64033M, 64034M, 64035M 64036M and 64037M) originally came from open pollinated seed obtained from Wye College, England. They have a European (Hallertau ?) female parent, but the male parent is unknown. Three of these, 64032M, 64033M, 64037M,in 1969 were crossed to Yakima Cluster (Table 2). Split leaf virus was evident throughout the nursery, but infection was slight (SL1). Quality data from isolated lupulin glands were obtained for Table 9. Acc. or Sel. No. Female Selections from the Germplasm Block. 1969 Plot No. Pedigree Corvallis, 1969. Diseases 1/ DM Virus 25% flow. flow, Cone size Maturity Quality a S a/R DI 19003 19012 19027 19028 19032 19093 19094 19105 19113 19144 42:21-22 34:21-22 48:19-20 49:19-20 38:19-20 41:19-20 43:19-20 35:19-20 32:21-22 39:19-20 Red Vine S LGp x FuS Fu x FuS EG x ECS RV x OP Fu x RV-Unknown S Bu x Bel 31S-Be131 Late GpS x Fu-FuS 50040 50075 50091 51104 52013 52020 53023 53050 54002 54003 51:19-20 33:19-20 34:19-20 53:19-20 50:19-20 44:19-20 52:19-20 40:19-20 48:21-22 47:21-22 Spalter x EKG-BavS (EKG x EG-KGS) x Fu-FuS 54004 54005 54007 54010 54015 61008 61011 61012 61014 61016 46:21-22 52:21-22 49:21-22 35:21-22 36:21-22 37:27-28 38:27-28 39:27-28 40:27-28 41:27-28 LGp-FuS x (CtT x Fu-FuS) (Tet-XS x LCS) x LGp-FuS LGp-FuS x OP 0/2 0/2 0/2 0/2 0/2 1/2 0/2 0/2 128 I Samling x TetFr-FuS LGp -FuS x LC-FuS FuS x (LhS x GC1-FuS)2 (BFav x LGp -FuS) x OP (XS x Bel 31S-Bel 31) x OP [FuS x(LhS x GC1-FuS)2]x OP EG-ECS x OP (BG x Fu-FuS) x FuS-RVS LGp-FuS x EKG-BavS SL3 SL1 SL1 SL1 0 SL1 SL1 SL1 SL4 0/2 YF1;SL1 1/2 SL1 0/2 0/2 0/2 0/2 0/2 0/2 0/1 0/2 0/2 0 0 0/2 0/2 0/2 (Ore Res -KGS x LGp - FuS)x(Fu x Be131S-Be131) 0/2 (BG x EG-ECS)x(Fu x Bel 31S-Bel 31) 0/2 Pol. CZ/66 1/4 Pol. P/K1 0/4 Pol. 28/30 1/10 Pol. 45/36 0/4 USSR N16 1/4 7/3 7/7 7/12 7/14 7/12 7/17 20 7/10 7/8 7/6 7/5 7/9 VS VL L S VS M M M M M M VL S S L L L S L S-VS M M VS L SL1 SL1 SL1 7/14 S S L 7/5 7/16 M M M-S L 0 L S VL M VL L L M L VS L L 7/20 S SL1 SL1 SL1 7/5 7/8 7/6 M SL1 SL2 SL1 SL1 SL1 7/6 7/14 30 7/8 7/3 7/14 7/10 7/10 7/14 7/14 S S VS S 27.3 20.8 47.8 49.5 29.5 6.4 41.8 49.9 23.8 21.7 34.0 45.0 0.65 0.42 2.01 2.29 0.87 0.14 26.5 40.5 0.65 27.1 40.5 19.2 40.9 28.0 49.4 24.2 21.2 44.8 28.4 46.0 29.8 44.0 26.3 52.2 43.4 0.61 1.43 0.42 1.37 0.64 1.88 0.46 0.49 36.9 33.7 38.3 32.9 0.96 1.02 42.7 18.7 27.1 15.0 1.57 1.25 M L M VE VE S E S M M VE Table 9 cont. Acc. or 1969 Sel. No. Plot No. Pedigree Diseases 1/ DM Virus Apr June 61017 61018 61019 61020 62051 62053 64020 64026 64106 65003 42:27-28 43:27-28 45:19-20 46:19-20 31:19-20 31:21-22 49:27-28 50:27-28 44:27-28 51:27-28 USSR N18 USSR N34 Yugoslavia Golding Savinja Golding Janus Defender Backa x EKG-BavS BG x (Bu x Bel 31S-Be131) Wye 25/56/2 LC x EG-XS 1/4 0/4 0/4 SL1 65026 66050 66051 66053 66054 66055 66056 68051 68052 6022-01 53:27-28 35:27-28 1/4 SL2 36:27-28 32:27-28 33:27-28 34:27-28 54:21-22 31:27-28 40:29-30 LC x OP Alliance Progress Ringwood Special Calicross First Choice Smooth Cone Brawling Cross Petham Golding BG x Ut 526-4 6028-01 6185-01 6220-03 6220-04 6220-06 6221-01 6228-01 6230-01 6305-01 6305-03 44:29-30 39:29-30 47:29-30 46:29-30 43:29-30 44:29-30 41:29-30 45:29-30 46:27-28 47:27-28 Ha x Fu-FuS Su25S x Ut 524-2 Fu x Colo. 2-1 Fu x Colo. 2-1 Fu x Colo. 2-1 Ha x Fu-FuS Ariz. 1-4 x Ariz. 1-1 NM 2-2 x Ut 525-2 Fu x 19173M Fu x 19173M 32:19 -20 0 0 0 0/4 SL2 SL1 0 0/4 4/4 4/4 SL1 2/4 25% Flow. June 7/18 7/2 7/1 7/14 7/16 7/16 7/8 7/10 7/10 7/15 7/9 7/15 7/14 7/14 7/8 Cone size 7/12 7/18 Quality x -6 M E S L L L L L E E E M M L S E VS M VS M M L E E VL M L L VE L M M L L M M L VL VL VL VL E L L L L VS VL M p a/f 1, 39,9 42.9 44.5 45.4 51.3 37.0 34.1 27.4 20.4 19,8 1.08 1,26 1,63 2.28 2.59 51.4 41.1 40.9 46.3 21.5 36.3 30.7 28.1 2.39 1.13 1.33 1.65 41.9 55.2 52.3 40,7 43.1 43.5 46.0 35.7 16.9 23.0 29.8 33.9 31.4 28.6 1.17 3.27 2.27 1.36 1.27 1,39 1.61 58.4 17.5 3.33 E L VL 7/14 7/15 7/16 7/16 7/16 7/14 Maturity L M Table 9. cont. Acc. or 1969 Sel. No. Plot No. Diseases 1/25% Pedigree DM Apr. 6305-04 6305-05 6512-24 6517-56 6524-01 6527-09 6535-17 6536-05 6538-17 6735-04 6735-05 1/ 48:27-28 45:27-28 31:29-30 33:29-30 34:29-30 35:29-30 36:29-30 37:29-30 38:29-30 36:19-20 37:19-20 Fu x 19173M Fu x 19173M Bu x EKG-BavS Ha x (Ha x Fu-FuS) SA101-1, 2 x EG-XS (Su 25S x EG-XS)x(Stsp-LCS) (BG x Fu-FuS) x OP (BG x Fu-FuS) x OP Ha x [Ha x (Bu x Bel 31S-Bel 31)] Su 50S x [Ut 523-4 x EG-XS] Su 50S x [Ut 523-4 x EG-XS] SL = split leaf, YF = yellow fleck; 0=best, 4=worst. Virus June flow June 7/19 7/17 7/14 7/17 7/10 7/17 0 0 7/16 7/15 7/16 7/20 Cone size Maturity VS L S L E L M M S L E E S VL M S E L S M VS M -33- most genotypes in this group (Table 10). Alpha acid values generally were high. This is not surprising for the males with a strong Brewers Gold background (63033M to 64031M), but was somewhat surprising for the males with a strong European background obtained from England (eg. 64035M, 64036M), and particularly for the two males with a strong Hallertau-Fuggle background (65035, 65037M). Alpha/beta ratios on the average were higher in this nursery than for most entries in the Male Breeding Block, but did not approach the high or low extremes found in the latter nursery. Triploid nursery Detailed data on growth, flowering, sex expression, diseases, maturity, yield per plant, pickability, cone weight, seed set, and seed size were obtained for the nearly 800 genotypes grown for the second year in the triploid nursery (see 1968 report, page 10). In addition, Mr. Likens and his staff obtained chemical quality data on the most promising female selections. Approximately 350 female genotypes were harvested individually at maturity with the mechanical picker. One hundred twenty-five genotypes with a yield in excess of 4,500 grams (9 bales per acre) were selected initially. Of these, 50 were discarded later primarily on the basis of infection by Verticillium wilt and virus diseases. Cross numbers and pedigrees of the 14 crosses involving tetraploid Fuggle (FuT, Accession No. 21003) are listed in Table 11. The proportion of Fuggle germ plasm in the various crosses varies from a low of 2/3 Fuggle (from the tetraploid female parent), when the male parent did not carry any Fuggle parentage, to a high of 11/12, when the male parent had a large percentage of Fuggle in its pedigree. The 1969 lupulin analyses of the various male parents are also included in Table 11. Two Fuggle-like males (Fu 1-1 and Fu 2-4), which were found on two different hills in the old hop yard in 1966 (see 1967 report, bottom of page 47), and which originally were thought to be a result of Fuggle sex reversal, were not retained in subsequent years. Surprisingly, some very interesting triploids came from crosses involving these two males, particularly from cross 6761. Nine genotypes from this cross are among the 26 triploids selected by Mr. Zimmermann for testing at Prosser, Washington (Table 12). Data on the most promising 75 triploid selections, based on yield and disease reaction, are presented in Table 12. With one exception (Selection No. 6769-05, a 31 chromosome female), all of these genotypes either showed no virus or Verticillium wilt symptoms at all, or the symptoms were very mild (Table 12). Maturity is indicated by the 25% flowering date and the harvest date. We found a full range of maturities from very early (selection 6765-33) to late. A number of good-yielding, early genotypes could be identified, but there were more good-yielding, late genotypes than early ones. In 1969, hops in the Willamette Valley of Oregon generally matured seven to ten days earlier than usual. Therefore, an early September harvest date in 1969 might be comparable to about September 10 in another year. As mentioned earlier, the cut-off point for yield was 4,500 grams (approximately 9 bales per acre). A large number of genotypes exceeded this figure by a substantial margin, notably selection No. 6769-02 (22 bales), 6769-03 (18.1 bales), 6763-19 (18.7 bales), 6771-04 (15.9 bales), 6760-41 (16.9 bales), 6760-71 (16.4 bales), 6761-16 (16.1 bales), and many others. Pickability, as judged from cone shatter and vine clean-up in our portable hop picker, varied from excellent (rating of one) to very poor i zr rn Table 10. Male Genotypes from the Backcross Nursery. Acc. or Sel. No. 1969 Plot No. 63033 63034 64027 64028 64029 64030 64031 64032 64033 64034 64035 64036 64037 65034 65035 65036 65037 1/ M M M M M M M M M M M M M M M M M 42:25-26 43:25-26 37:25-26 38:25-26 39:25-26 40:25-26 41:25-26 44:25-26 45:25-26 46:25-26 47:25-26 48:25-26 49:25-26 33:25-26 34:25-26 35:25-26 36:25-26 Corvallis, 1969. Diseases lj Pedigree BG x Ut 526-4 BG x Ut 526-4 BG x (BG x EKG-BavS) BG x (BG x EKG-BavS) BG x (BG x EKG-BavS) BG x (BG x EKG-BavS) BG x (BG x EKG-BavS) 2L118 x OP; (Z-OP from 2L118 x OP; (Z-OP from 2L118 x OP; (Z-OP from 7K491 x OP; (Z-OP from 7K491 x OP; (Z-OP from 7K491 x OP; (Z-OP from Ha x (Ha x Fu-FuS) Ha x (Ha x Fu-FuS) Ha x (Ha x Fu-FuS) Ha x (Ha x Fu-FuS) DM 0/2 0/2 Wye) Wye) Wye) Wye) Wye) Wye) 0/2 1/2 0/2 0/2 0/2 0/2 0/2 0/2 0/2 0/2 0/2 0/2 0/2 1/2 SL = split leaf, YF = yellow fleck; 0=best, 4=worst. Virus SL1 SL1 SL1 SL1 SL1 SL1;YF1 SL1 SL1 SL1 0 SL1 SL1 SL1 SL1 SL1 SL1 SL2 Cross wire June flow a a June % % 18 7/8 7/5 7/7 7/6 7/8 29 13 7/9 14 16 7/1 16 28 7/2 29 7/8 7/8 7/1 7/2 7/4 22 17 Quality 25% 18 a/5 46.6 46,0 55.2 50.8 47.3 47.4 49.6 29.3 37.3 33.9 28.4 27.9 25.3 30.9 33.8 29.9 44.9 30.3 1.38 1.62 1.98 2.01 1.53 1.40 1.66 0.71 1.23 56.8 49.3 32.6 18.3 50.4 29.0 45.6 23.5 25.6 23.4 28.5 29.1 41.5 28.1 2.42 1.93 1.39 0.64 1.73 0.70 1,62 -35- Table 11. Pedigree of Selections from the Triploid Nursery. Corvallis, 1969 Cross No. Propor. 1969 lup. anaL ofd parent a a+6 Fuggle ap3 a Pedigree 17 6756- 21003 x 19040M; FuT x Fu-FuS 11/12 38.8 29.7 68.5 Remarks 1.30 6759- x OP ; " x OP 2/3 d'unknown 6760- x Fu 1-1; " x FuS 5/6 edisc.in 6761- x Fu 2-4; It x FuS 5/6 If 6763- x Fu 1-1; " x FuS 5/6 If 6765- x 19010M; " x RV-FuS 9/12 x Fu 1-1; " x FuS 5/6 6770- x 19010M; " x RV-FuS 9/12 6771- x 19010M; " x RV-FuS 9/12 6772- x 19040M; " x Fu-FuS 11/12 6773- x 19058M; " x EG-XS 2/3 6774- x 19058M; " x EG-XS 2/3 6775- x 19062M; " x EG-BavS 2/3 6777- x OP " x OP 2/3 1968 6769- II 29.8 28.8 57.8 1.06 crdisc.in 1968 ; 33.4 49.3 82.7 0.68 37.5 35.9 73.4 1.05 d'unknown Table 12. Sel. No. Selections from the Triploid Nursery, based on Yield and Disease Reaction. 25% flowering June 6756-04 1Date / Diseases Yield Pick-2/ Cone Virus Vert. harv. Plant acre abil. wt Wilt dry Aug. g bales mg % Seed Quality Seed cone Corvallis, 1969. a $ % % a/0 Remarks 7/4 25 SL1 SL1 0 1 29 9/2 5150 5600 11.4 12.3 3 3 165 250 2.37 -25 1.42 1.32 1.03 4.7 8.3 3.8 3.7 1.23 2.26 6759-03 7/5 SL1 0 29 4960 10.9 2 -3 240 1.86 1.39 5.7 4.8 1.19 6760-02 25 7/5 30 30 26 18 25 27 7/6 20 7/3 SL1 SL1 SL1 0 SL1 1 28 28 9/3 9/3 28 9/3 28 22 5240 5300 4500 4510 7680 4620 5700 4550 3 235 185 285 170 220 225 235 290 160 245 155 4.17 1.75 2.67 3.44 1.34 2.19 2.83 3.60 2.21 5.81 3.01 3.13 0.81 7.5 1-2 4 4 2 3-4 3 3 3 5 0.66 1.19 1.68 2.35 1.72 3.16 1.09 6.7 6.4 4.6 4.0 4.2 5.7 3.3 5.7 5.4 3.8 3.4 3.7 3.4 2.5 1.86 1.14 1.49 1.75 0.65 1.66 1.86 2.05 1.84 early early,Prosser 1.88 1.81 31 chrom. 7/4 29 30 7/6 28 27 7/2 7/6 7/1 7/5 7/5 7/4 29 SL1 SL1 220 265 210 160 200 220 190 3.68 1.67 2.49 2.88 4.40 1.95 2.32 1.62 3.23 1.98 2.61 2.92 2.14 2.64 0.93 6.8 9.5 2.8 5.6 2.48 1.21 1.30 7.9 6.1 9.5 9.4 10.9 7.2 8.2 7.9 10.5 3.6 7.8 3.1 3.2 -04 -16 -20 -41 -43 -47 -68 -71 -106-119 6761-04 -12 -16 -35 -42 -47 -61 -77 -100 -111 -112 -117 -120 0 0 0 SL1 0 SL1 0 -0 SL1 0 0 0 SL1 SL1 0 0 SL1 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 0 0 0 0 22 .7440 9/3 28 6450 4850 11.6 11.7 9.9 9.9 16.9 10.2 12.6 10.0 16.4 14.2 10.7 28 9/3 28 9/3 28 28 4800 5440 7300 4940 4540 5300 5100 4740 6680 4550 5210 4920 4650 10.6 12.0 16.1 10.9 10.0 11.7 11.2 10.5 14.7 10.0 11.5 10.8 10.3 29 9/3 9/4 1 29 0 9/4 0 0 29 14 2-3 2-3 2-3 2-3 3 2 1-2 2 2 135 3 205 175 185 230 255 2-3 3 2-3 2 1.72 1.78 2.09 1.53 1.32 0.84 2.29 1.30 1.33 2.05 2.61 4.8 8.4 5.8 3.7 8.9 7.1 6.9 3.7 3.0 3.7 3.4 3.9 2.8 3.9 4.3 5.4 Prosser c..i 1 1.71 2.51 1.91 2.58 3.14 2.93 2.14 2.10 2.83 Prosser vg, Prosser Prosser 2.69. Prosser Prosser v.early 2.01 1.45 Prosser Prosser Prosser Prosser Table 12. cont. 25% Sel. No. flowering Diseases 1/ Vert. Virus Date Yield harv. Plant Acre Pick-a/ Cone Aug. 6763-02 7/4 0 1 9/4 -09 -10 -19 -20 20 0 7/3 7/7 7/4 0 0 0 26 26 29 26 6765-02 25 25 -04 -06 -12 -31 -33 -34 7/6 7/3 23 20 25 6769-02 7/1 -03 -05 -08 -10 -11 -28 -31 -35 -45 29 6770-18 -21 -25 6771-01 -04 -05 7/2 7/3 20 19 7/3 21 20 26 7/1 24 17 21 7/4 7/5 SL1 SL1 0 SL1 SL1 SL1 SL1 0 0 0 14 9/2 9/2 0 0 0 0 14 8 SL1 0 9/2 26 26 0 0 19 g Quality Seed cone a 225 260 225 170 215 5.08 1.98 4.49 4.71 3.29 3.04 1.36 2.74 2.75 1.88 6.2 9.5 7.7 5.9 5.6 4.8 5.1 3.3 3.5 2.6 1.30 1.87 2.31 1.71 2.12 Prosser Prosser Prosser Prosser 225 210 235 320 235 205 165 4.02 2.76 2.97 2.61 2.28 2.35 1.88 1.25 1.52 2.04 3.3 6.6 1.06 "early 7.2 5.9 8.3 4.3 6.1 3.1 2.4 3.0 2.6 3.1 2.5 3.3 2.74 2.37 2.26 2.70 1.74 200 165 180 195 220 255 220 250 2.37 1.67 0.36 1.47 2.44 3 7.8 8.4 9.1 7.6 4.4 5.5 10.9 7.1 8.6 8.5 4.1 3.7 4.5 3.8 8.5 5.8 6.5 3.7 4.5 3.8 1.92 2.29 2.01 1.99 0.52 0.95 1.67 1.94 1.92 2.20 highest yld.,pra 125 225 3.74 2.97 0.74 2.10 3.25 3.08 2.33 2.32 2.01 1.52 2.8 1.8 2.34 2.30 2.22 v.early early early 2.20 2.80 3.18 early wilt June % Seed abil. wt. a/13, Remarks dry mg bales 6300 7350 7300 8500 5000 13.9 16.2 16.1 18.7 11.0 2-3 5130 6650 5860 6220 6600 4690 5840 11.3 14.7 12.9 13.7 14.6 10.3 12.9 2-3 22.0 18.1 15.8 13.4 13.5 15.7 11.0 16.0 12.2 11.4 3 2 4 3-4 3 2 4 5 2 1 1-2 1.85 1.81 2.68 3.85 0 0 SL1 SL2 SL1 SL1 SL1 0 0 9/2 0 0 26 21 0 9/4 0 0 1 0 26 19 0 0 19 0 1 9/4 10000 8200 7163 6080 6110 7100 5000 7240 5550 5180 0 0 0 0 14 19 21 5240 6420 4460 11.6 14.2 9.8 2-3 2-3 2-3 200 250 245 3.55 2.43 3.62 2.57 1.54 2.05 6.7 0 0 SL1 0 0 0 6300 7227 5600 13.9 15.9 12.3 2-3 2-3 SL1 22 28 9/2 260 0 4.15 4.54 4.02 2.77 3.99 2.20 6.9 5.2 5.6 3 4 2-3 2-3 1-2 3-4 1-2 3 4 325 195 1.51 1.89 1.99 0.98 0.91 4.0 7.7 3.5 3.1 1.8 1.8 1.85 v.early,Pro. Prosser v.early,Pro. v.early,vg Prosser Prosser 31 chrom.a Prosser early Prosser early, Prosser 31 chrom. 31 chrom. Table cont. 12. 25% Sel. No. flowering Diseases 1 I Date Virus Vert. harv. wilt June Aug. Yield Plant Acre g 2-3 2-3 345 225 3.65 4.45 2.51 2.45 5.6 5.9 3.7 4.9 1.52 1.20 ft 6140 4300 4880 5900 6150 13.5 9.5 10.8 13.0 13.6 1-2 1-2 0.49 0.92 2.07 0.66 1.14 0.29 0.71 2.93 0.52 0.50 8.5 7.8 6.2 7.6 3.5 3.7 4.2 2.1 2.28 1.86 1.43 1.97 1.65 early, Prosser 2-3 170 270 385 235 140 5090 6500 11.2 14.3 2-3 3-4 250 245 2.08 2.98 1.74 2.75 7.7 4.1 4.1 5.5 1.87 0.74 early 17.3 11.1 10.9 11.1 2-3 14 21 7830 5020 4950 5050 210 265 210 220 3.43 2.49 1.59 3.34 2.13 2.05 1.68 2.90 6.5 7.0 5.2 5.9 4.1 3.5 2.4 3.4 1.57 1.97 2.20 1.74 v. early early 14 14 14 5260 5170 4820 11.6 11.4 10.6 2-3 2-3 185 190 295 2.55 3.67 1.71 1.98 3.27 1.53 3.8 4.2 5.3 1.8 1.4 2.3 2.08 2.97 2.33 v. early v. early v. early 710 950 2380 1.6 2.1 5.2 17.61 12.25 2.07 1.92 0.27 0.13 4.5 3.2 6.6 2.5 2.2 4.2 1.80 1.45 1.57 baby low vigor Smith yd. SL1 SL1 1 9/3 0 22 1 9/4 9/4 17 21 0 0 0 0 6777-16 20 SL1 0 -18 -33 7/3 0 0 0 -02 -04 -14 -19 6774-06 7/3 -14 22 6775-01 26 -03 -17 -18 7/3 19209 21003 19209 21 27 20 0 S1.1 0 0 0 0 0 0 1 % 11.4 11.6 22 21 21 21 21 23 19 25 26 25 % 3 2 3 3 3 2-3 2-3 2 265 220 190 Verticillium Wilt: 0=none to 4(dying). 4; SL=split leaf: 0 (best) pickability based on cone shatter and vine cleanup: 1=best, to 5. Virus: Remarks a/13, 3-4 3-4 0 0 0 0 0 6773-01 13 1.78 1.93- early, Prosser 2.92 early 1.20 early 5180 5260 0 SL1 mg a 3.4 4.7 2.9 4.9 28 9/3 17 26 0 SL1 0 0 cone 6.0 9.0 8.5 5.9 0 0 6772-17 -24 0 Quality Seed 3.35 2.56 2.53 4.12 0 0 SL1 % Seed 3.58 3.07 2.91 3.09 10.8 15.8 20.9 11.7 7/5 16 24 26 wt. dry 330 345 240 295 4900 7160 9460 5300 -19 -21 -23 abil. bales 26 21 21 21 6771-17 Pick-1/ Cone 4.3 3.8 early early early - 39 - (rating of five). Many genotypes, however, had very good pickability ratings. Dry cone weights based on a 200 cone sample varied from a low of 135 mg per cone (selection No. 6761-77), to a high of 385 mg per cone (6773-04), with an overall mean of about 228 mg per cone. This compares to 220 mg per cone for the tetraploid Fuggle (Accession No. 21003) and about 190 mg per cone for seedless diploid Fuggle (Accession No. 19209, Table 12). Seed content of triploids under open pollinated conditions averaged 2.8% on a weight basis, corresponding to about two seeds per cone. This contrasts to a seed set of nearly 18% (12.25 seeds per cone) for diploid hop on identical field conditions. Under commercial conditions (2-3 males per acre), seed set of triploids can be expected to be considerably less than the 2.8% found in our hop yard, where ample pollen from a large number of males was available throughout the flowering period. Quality data were obtained initially en a five-cone sample and the data were later varified by analysis of a one-pound bale sample. In general, data from the five-cone sample and the one pound bale sample agreed very well. Alpha acid values varied from a low of 3.3% (selection No. 6765-02) to a high of 10.9% (selection No. 6769-28 and 6761-61). Only 12 out of 75 genotypes in Table 12 had alpha acid values below the cutoff point of 5%. A surprisingly large number of genotypes had alpha acid values in the 7, 8, and 9% range. The ratio of alpha/beta varied from a low of 0.52 (selection 6769-10) to a high of 3.14 (selection 6761-47). Morphologically most of the triploids were similar to diploid Fuggle in such traits as leaf size, leaf shape, shoot morphology, cone size and shape, cone weight, and maturity; but many had considerably longer side arms and showed more branching and cone set. In many cases the aroma was distinctly "European". It should be pointed out, however, that these data are from a single hill (on two-year old, physiologically mature plants). All genotypes in Table 12 will be grown in four-hill or larger plots in 1970 for further evaluation. A total of 26 genotypes marked "Prosser" (under remarks) will be grown both at Prosser, Washington and in a 10-hill plot in our seedless yard at Corvallis. They will also undergo a 20-plant mildew test in the greenhouse in 1970. Another group of 50 triploid genotypes is listed in Table 13. These were selected initially due to their good yield potential, but were later eliminated, primarily because of a high degree of Verticillium wilt infection. They will be maintained in a two-hill plot for another two years, primarily to obtain additional information on Verticillium wilt infection. Again, a range of maturity classes, pickabilities, cone weights, and seed set was found in this material similar to the genotypes listed in Table 12. Quality data were similar to those in the first group of triploid selections (Table 12), except that slightly more types with lower alpha acid content were found. Whether this is related to Verticillium wilt infection is unknown. Table 13. Sel. No. 6753-09 Summary of triploid selections with good yield potential, but high susceptibility to Verticillium wilt. Corvallis, 1969. Pedigree FuT x FuS -18 -20 -21 -22 -23 -35 6755-04 6757-03 6759-01 6760-05 9 6 6 4 6 FuT x EG-XS FuT x OP FuT x FuS 7/3 SL1 SL1 SL1 SL1 3 0 2 25 7/1 Aug. 3 9/2 2 2 26 29 26 2 19 2 26 9/2 3 21 2 25 SL1 2 9/3 2 27 0 2 7 20 26 25 SL1 3 0 2 22 21 21 0 2 9/3 28 7/7 20 SL1 SL2 2 22 2 28 0 0 0 3 15 2 SL1 2 9/3 28 9/3 0 0 3 15 3 SL1 0 3 3 28 22 SL1 2 6 4 2 4 4 8 2 6 3 4 10 9 2 2 P4T x FuS 0 0 hare. 7 7 FuTxEKG-BavS 7/1 7/3 Date 7/6 7/6 7/5 7/6 7/4 28 7/1 2 -07 -11 -24 -28 -29 -44 -52 -58 -61 -65 -72 -75 -87 -104 6761-06 Cross 25% Diseases wire flow- Virus:Vert ering wilt June June 6 -11 9 -23 6 7/1 7/5 7/6 7/6 26 7/6 7/14 26 0 2 SL1 3 0 0 0 2 26 2 28 2 9/4 9/4 14 15 Yield Plant:Acre g 4760 5550 5350 5020 4580 5280 7150 4760 4950 6070 5573 5360 5080 6860 5180 5700 4600 4710 6400 4920 4980 5450 5120 5820 5000 3936 4060 5010 Pick- Single abil. cone wt. bales 10.5 12.2 % Seed Seed cone mg. 3-4 3.23 3.06 3.53 3.69 2.55 3.61 2.89 3.35 1.53 3.12 1.67 2.75 2.70 2.49 2.56 1.28 2.77 1.62 2.61 2.95 0.95 2.74 1.29 1.64 0.49 4.41 2-3 165 180 185 245 150 155 140 175 240 240 255 275 225 180 285 260 195 180 190 275 205 195 220 185 170 145 110 2 165 1.04 3 11.8 3 11.1 10.1 4-5 11.6 15.8 10.5 10.9 13.4 12.3 11.8 11.2 15.1 11.4 12.6 10.1 10.4 14.1 10.8 11.0 12.0 11.3 12.8 11.0 8.7 9.0 11.0 3-4 3-4 2-3 2-3 2 3 2 3-4 4 3 3 3 2 3 2 1-2 4-5 2 3-4 3 3 3 1.33 1.94 1.41 1.98 1.39 2.44 1.50 1.76 1.12 2.50 1.25 3.02 1.46 1.57 2.36 0.87 1.31 1.08 1.62 1.94 0.50 1.38 0.71 1.32 0.23 2.88 0.76 Quality a B % % 7.4 7.9 5.4 4.8 2.5 3.8 2.9 2.9 3.5 2.8 6.2 3.3 3.7 3.2 4.4 4.1 6.7 2.3 5.0 4.9 4.3 6.5 5.6 6.5 7.5 7.9 4.8 6.9 7.0 7.8 6.7 7.3 5.8 7.6 6.7 5.8 3.5 8.0 6.5 5.2 9.3 3.1 4.4 4.3 4.7 3.7 5.8 5.9 5.1 4.1 4.0 4.1 5.8 2.4 2.2 4.0 V a/B 1.54 3.17 1.44 2.35 0.79 1.43 1.78 0.70 1.98 1.54 2.01 1.72 1.91 1.56 1.55 1.61 1.67 1.82 1.27 1.00 1.51 1.65 1.48 0.86 1.50 2.73 2.42 2.34 C B B C C B C B C B B C C B C C B B C C C B C C C C C C Table 13. Sel. No. 6761-28 Cont. Pedigree FuT x FuS -41 -50 -122 6763-05 5 5 FuT x FuS 2 2 FuT x RV-FuS Fu x FuS -16 -17 -25 -40 -47 6770-13 6772-25 2 2 -18 6769-14 5 7 -16 -18 -26 6765-10 Cross 25% Diseases wire flow- Virus:Vert ering wilt June June 4 4 3 5 3 9 4 2 FuT x RV-FuS FuT x RV-FuS 5 8 -32 6774-02 FuT x EG-XS 2 6775-19 FuTxEKG-BavS 8 -33 1/ 4 11 28 29 26 27 7/4 7/3 22 16 26 24 20 25 21 25 20 20 7/5 21 Date Yield harv. Plant:Acre Aug 2 0 0 3 3 3 22 29 SL1 3 19 0 SL1 2 2 0 2 26 26 29 SL1 SL1 2 14 3 26 0 3 19 0 2 9/4 SL1 2 28 0 3 14 21 SL1 3 9/2 0 2 19 SL2 2 9/2 0 2 22 7/7 7/3 SL1 2 2 9/3 20 7/6 SL1 SL2 0 abil. cone wt. Seed % seed Quality' cone a 8 0.88 1.04 2.14 6.3 6.8 4.4 3.7 3.1 1.21 1.27 1.65 2.22 1.67 1.62 2.46 0.20 1.01 0.55 0.50 0.54 1.54 2.68 7.8 3.2 5.4 4.1 4.1 4.0 4.9 9.0 5.2 5.1 7.5 7.4 7.6 7.4 1.76 1.46 1.93 2.99 2.56 5.3 6.7 4.0 6.2 a/8 1/ SL1 SL1 Pick- Single 2 22 14 0 28 g 4850 6160 5333 4750 4780 5660 4750 5360 6810 5000 5600 4980 4770 5760 5540 4500 5500 7010 6533 4900 5440 6413 bales 10.7 13.6 11.8 10.5 10.5 12.5 10.5 11.8 15.0 11.0 12.3 11.0 10.5 11.4 12.2 9.9 12.1 15.5 14.4 10.8 12.0 14.1 mg 4-5 3-4 3-4 2-3 140 185 145 180 185 160 190 245 185 185 215 205 215 220 4 240 3 3 4-5 2-3 3 5 2 2 3 2 2 185 2-3 2-3 275 275 220 220 3 3-4 3-4 3-4 No seed sample for genotype 6761-11. Quality data: B = from 1 pound bale sample; C = from 5 cone sample. No quality data for genotype 6772-25. 145 265 1.75 2.01 3.04 2.22 2.16 3.86 5.26 3.86 2.40 4.03 0.37 1.89 1.03 0.80 1.10 2.42 3.20 2.58 2.20 2.14 4.30 2.73 7.2 2.9 3.9 4.1 5.4 3.2 2.9 1.42 1.82 2.33 1.81 1.53 1.45 1.32 1.66 1.99 1.52 1.93 1.82 1.31 1.83 1.37 2.39 2.58 C B C C C B C C C C B C C B C C C 2.4 3.3 2.4 5.3 2.24 2.02 1.70 1.19 B C C C 4.3 2.1 3.7 3.1 2.5 2.0 3.2 4.7 -42- Hop Genetics Additional data were also obtained from the triploid seedling population, which are primarily of interest from a genetic standpoint: Cytological analysis of seedlings from a tetraploid x diploid cross Out of 778 seedlings analyzed cytologically, 594 or 76% were triploids with a chromosome number of 2n=30. However, 7.5% had one chromosome missing (2n=29), 13% had 31 chromosomes, one plant had 28, one each had 33 and 39 chromosomes, respectively, 7 plants had 32 chromosomes, and 9 plants had 40 chromosomes. Cytologically, the origin of most of these genotypes can be readily One can occassionally expect to lose one or more chromosomes during meiosis in the tetraploid, and conversely one can also expect gametes with one or two extra chromosomes which can account for these aneu-polyploids. The tetraploids could have originated from a 30 chromosome gamete fertilized by a 10-chromosome pollen grain. Somewhat unexpected were the individuals with more than 40 and the one with 20 chromosomes (Table 14). Again the 20-chromosome diploid genotype could have arisen from unequal reduction at meiosis which gave gametes with 30 and 10 chromosomes, respectively. The 10-chromosome egg fertilized by a 10-chromosome pollen grain could have resulted in a diploid plant. Phenotypically, this plant looked very much like the Fuggle parent. The genotypes with chromosome numbers in excess of 40 could have arisen from a female gamete with 31 chromosomes from unequal segregation at meiosis I, pollinated with a 10-chromosome male gamete. explained. Sex expression of seedlings from a tetraploid x diploid cross From a total of 733 plants that survived from the 778 after transplanting to the field in 1968, 575 or 79% were true triploids. Of these, 71% were true females, and only 2% were true males (Table 15). Eighteen percent were predominately males with not more than 10% female flowers. The rest were either predominately female, or plants with half male and half female flowers. In the whole nursery, including all aneuploids and polyploids, the situation was similar: 68% true females versus only 3% true males. Two percent of all genotypes did not show any sex expression. The majority of these plants were dwarfs that grew to about four feet in height. Cytologically, most of these dwarfs were triploids. Comparison of growth rates of triploid and tetraploid hop plants It was observed already in 1968, that the colchicine-induced tetraploid Fuggle (Accession No. 21003) grew considerably slower in the field than the diploid parental clone. A group of 20 female triploids whose sex had been determined the year before, was chosen at random and their daily growth was monitored in the spring of 1969 (Figure 1). Table 14. Cytological analysis of the progeny from seven tetraploid x diploid crosses in hop. Chromosome Number 2n= Total 20 No. of plants Percent 0.1 28 29 30 31 32 33 39 40 41 42 1 58 594 103 7 1 1 9 2 1 0.1 7.5 76.3 13.3 0.9 0.1 0.1 1.2 0.3 0.1 778 100% Table 15. Sex distribution in the progeny from seven tetraploid x diploid crosses in hop. Total No. plants _ no Sex Total population incl. "aneu-polyploids" 733 68% 2 % 7 % 18 % 3 % 2 % True triploids 575 71 % 2% 6 % 18 % 2 % 1 % = Predominantly females, = 9: eflowers 1.= = 1 : Predominantly males, flowers < 10 % 1 flowers < 10 % S 58' gm 16.4' 4m Triploid: 2 n r.30 3m Tefrapoid :2nr.4o 2n 3:loily growl!: Tripl: 7' Tdrapt 411.° Days Figure I. 4 6 8 10 I2 14- 16 18 20 22. 24 26 28 3o 32. Growth of triploid Q.nd tetra.ploid. hop : May 7 - Jun& 1, 1919 -46- Each triploid was a single hill and the upper curve is the average of 20 genotypes. Four hills of the tetraploid parent were available and All plants were the lower curve is the mean of four measurements each. in their second year of growth in the field and, therefore, physiologically at a comparable age. The triploids were by far the most vigorous growers and on June 2 (the 27th day of note taking) the mean difference between the two groups was 6.1 feet in favor of the triploids. This compares to a starting difference of only five inches at the beginning of the growth curve on May 7 (day 0). Two triploid genotypes on May 26, however, were about 16 feet tall and could not be reached any more with the ladder. At that date the average of the tetraploid parents was only 7.7 feet. On the average it took 291/2 days for the triploids to reach the cross wire with a daily growth increment of seven inches, as compared to four and a half inches for the tetraploid, which is a mean difference of two and a half inches per day in favor of the triploids. The diploid Fuggle is also a vigorous grower and its growth curve is considerably steeper than that of the tetraploids and closer to the triploid average. In 1969 a diploid Fuggle of comparable physiological age was not available. In 1970, additional growth measurements will be obtained on diploid, triploid, and tetraploid Fuggle of comparable physiological age (two years) in a replicated experiment. Yield and quality of hop as related to level of polyploidy A yield nursery involving 23 randomly choosen triploid female genotypes plus tetraploid and diploid Fuggle was established in a four replication (single hill) test in the seeded and seedless yard in 1969 (Table 16). Seven of these genotypes (6756-04, 6763-10, 6765-02, 6765-12, 6769-02, 6769-05, 6777-19) are also included in the list of 75 most promising triploids (Table 12), although they were choosen before any of the 1969 performance data were available. All plants were started in the greenhouse and transplanted to the field in a 71/2 by 71/2 foot spacing in mid May 1969. Most reached the wire that year and some produced a good crop of baby hops. A notable exception were the tetraploids, which were low in vigor and did not reach the cross wire at all. In 1970, daily growth of these genotypes will be monitored in order to study vigor and growth rates at the different levels of ploidy. Furthermore, yield and quality data under seeded and seedless conditions will be obtained. This will be the first replicated test of the yield potential of triploid hop in Oregon. Cytological studies on the seedling progeny from a cross of triploid x diploid hop. Several crosses were made in 1967 to study seed set of the triploid genotype 56008 with different males. In addition, open pollinated seed of 56008 was collected (1967 report, page 47). Seed from these crosses was germinated in 1968 and seedlings were sampled for cytological analysis -47- Table 16. Diploid-Triploid-Tetraploid Yield Nursery, Corvallis, 1969. Planted May 13, 1969; Main Yard: Seedless Yard: Planted May 10 ? 12, 1969. Entry No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Entry #14: Randomization No. Accession or Selection No. 19209 21003 6753-20 6753-21 -23 6756-04 -28 6759-02 6762-05 6763-10 -22 -25 6765-01 -02 -12 6769-02 Pedigree Bl Fu. dipl. Fu. tetrapl. T4 21003 x FuS it 21003 x OP 21003 x RV-FuS 21003 x FuS II 11 21003 x RV-FuS It yt 21003 x FuS II It It ,I fl 21003 x RV-FuS 6770-16 6771-13 6777-19 ,1 ,1 main yard Entry #21 (Rep. IV): II III 1 22 2 12 13 16 4 25 22 18 11 3 3 7 6 15 6 14 18 21 7 11 23 8 9 16 22 5 5 2 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 24 9 14 21 4 24 18 20 & seedless yard. in seedless yard: IV 4 5 21003 x Fu-FuS -05 -16 -17 -25 -40 -47 rin I replace. 17 8 21 13 10 3 10 25 15 7 1 1 17 25 5 2 14 11 4 9 20 19 16 6 1 12 8 2 10 20 15 3 13 9 19 24 12 7 23 19 17 6 8 23 -48- (1968 report, page 26). Additional cytological analyses were made in 1969 and the data from this research are summarized in Table 17. Two groups of seedling progenies are listed in the Table: those from the controlled triploid x diploid cross, and those from the triploid x OP collection. Since no polyploid males were known to be present in the hop yard in 1967, these seedlings can be safely assumed to have arisen from triploid x diploid crosses. The frequency of aneuploids with similar karyotypes in both seedling populations appeared to be comparable and, therefore, the data were combined and expressed on a percentage basis (Table 17). The largest group of seedlings were tetraploids (nearly 31%), followed by double trisomics (14.5%), primary trisomics (13.2%), and diploids, in that order. Clearly, the chances of recovering a particular aneuploid decreased as chromosome numbers deviated from the diploid complement, but seemed to be somewhat better again for those with a chromosome number approaching 2n=30. The large percentage of tetraploids in the present study seems to suggest a definite mechanism for the production of tetraploid offspring. This might be a preferential production of non-reduced eggs, or selective viability of triploid over aneuploid gametes produced by the female parent. The origin of genotypes with chromosome numbers in excess of 40 is difficult to explain, particularly since all but two of these were aneupolyploids. A partially reduced egg fertilized by a ten-chromosome pollen grain, followed by chromosome doubling, could explain such types. Fertilization of a non-reduced egg from the triploid parent by 20chromosome pollen could explain the two pentaploids found in the present study. Both plants were weak and could not be maintained in the greenhouse. The plant with 55 chromosomes, however, is a female with surprising vigor. A large number of aneuploids, primarily primary and double trisomics, was identified. These genotypes are being maintained in the greenhouse for cytological studies in future years. Tetraploid seedling nursery Tetraploid seedlings obtained from the triploid x diploid crosses (Table 17) were transplanted to the main yard in the spring of 1969 (Table 18). All of them are offspring of genotype 56008, but with different male parents. These genotypes may be useful for future polyploidy breeding and also for genetic and physiological studies. Data on sex expression were obtained in 1969. Over half of all genotypes were true females and none were found that were true males. Many genotypes showed various degrees of male or female sex expression and two (6751-98 and 6752-59) were used to study the viability of tetraploid pollen. In addition, one monoecious tetraploid from the Fuggle triploid block Table 17. Somatic Chromosome Numbers in the Seedling Progeny of a Triploid Hop. No. Chromosome number 2n= Cross see dl. 20 anal. 21 22 23 24 25 26 27 28 29 30 31 34 37 38 39 40 41 42 46 48 50 55 10 2 1 0 0 1 7 5 3 0 0 0 0 1 24 1 0 1 1 1 0 3 8 14 24 18 12 2 1 3 8 16 135 10 1 0 0 1 1 8 15 31 23 15 2 1 3 8 17 159 11 1 1 1 2 1 Tripl. x 88 13 17 Dipl. Tripl. x OP 429 Total 517 0 32 45 51 68 65 75 18 20 6 7 3 8.8 13.2 14.5 3.9 1.3 0.6 1.5 2.9 6.0 4.4 2.9 0.4 0.2 0.6 1.5 3.3 30.8 2.1 0.2 0.2 0.2 0.4 0.2 -50- Table 18. Tetraploid Seedling Nursery. Planted: April 18 & 19, 1969. Selection Location No. Sex Source Pedigree s, 23:1 6742-02 Cr6742 56008 x 63019-OP 23:2-5 6743-05 to 10 Cr6743 56008 x 19009M 2 23:6-9 6745-07 to 21 Cr6745 56008 x 19058M 2 2 23:10-18 6747-01 to 26 Cr6747 56008 x 51114M 7 1 23:19-20 6749-01 to 05 Cr6749 56008 x 60019M 1 23:21-26:18 6751-12 to 371 Cr6751 26:19-30:21 6752-01 to 256 Cr6752 56008 x OP cr Remarks ir 1 2 lost 1 1 32 11 18 10 0 1 lost, 1 no sex 56008 x OP Totals 56008 = XS x Fu x EG -ECS)] 26 5 5 17 0 70 16 27 29 0 -51- (selection No. 6769-12) was also used to study viability of tetraploid pollen (Table 3). Good seed set was obtained, indicating that tetraploid pollen is fully functional. Seedlings from these crosses will be germinated in 1970 and sampled for cytological analysis. Most are expected to be triploids. Two female parents in these crosses were commercial varieties with high alpha acid content (Brewers Gold, Northern Brewer), one was L8 (a selection from Yakima Cluster, another one was genotype 65011 (a high alpha female with a strong Brewers Gold background), and another female was an experimental from our female breeding block. Seedlings from the Brewers Gold, Northern Brewer, 65011, and L8 crosses should be useful for selection of high alpha or Cluster-type triploids. Seedlings from these crosses will be planted in greenhouse flats for downy mildew screening in 1970 and channelled into the hop breeding program the following year. Genetic block A genetic block was established two years ago as a "holding nursery" of genotypes potentially useful for future genetic studies (Table 19). Material in this group is at various stages of investigation. Inbreeding depression through brother-sister mating will be carried out with selection No. 6720-14, a female, which was crossed to two males (6720-22 and 6720-23) in 1969. The original four clones of tetraploid Fuggle (T1, T2, T3, T4) are now pooled as Accession No. 21003. They will be maintained separately in the genetic block as well as the original diploid Fuggle (Bl = Accession No. 19209) from which the tetraploids were derived by colchicine treatment. Other genotypes in this nursery are either monoecious plants, or they possess certain phenotypic traits such as peculiar cone types, leaf color, stem color, etc. Additional genotypes will be added to the genetic block as they become available in future years. -52- Table 19. Genotypes Grown in the Genetic Block. Location Acc. or Sel. No. 22:10 6720-10 22:14 II 22:22 v, 22:23 Source Pedigree Cr6720 19209 x 19173M el Corvallis, 1969. Remarks einbreeding; no seed set it 9 u tl cle 11 CP It It ;good seed set 28:3-6 6754-01 to 05 Cr6754 21003 x 19010M 28:7-10 21003 Smith Tetrapl. Fu.T1 28:11-14 21003 28:15-18 21003 28:19-22 19209 28:23-25 21003 29:1 6533-01 Cr6533 63019 x OP 2n=21, lanc. leaf 29:5-8 6659-17 Cr6659 63020 x 63025M triploid V 29:9-12 6668-01 Cr6668 56008 x OP tetraploid V! 29:13 6527-01 Cr6527 60007 x 19173M 9, y. lvs, dw.? 29:14 6530-01 Cr6530 63003 x OP 9, lo, rh. 29:15 6667-25 Cr6667 19113 x OP d', 2n=20, red stem 29:16 6622-01 Cr6622 64100 x 19043M VP, la lvs,v. little seed 29:17 6630-01 Cr6630 52043 x OP V 29:18 6220-01 Cr6220 19209 x 60026M Iri, 29:19 6211-01 Cr6211 56002 x 19062M ir sm. round cones 29:20 5859-01 Cr5859 19208 x OP 9, v. sm. red cones &strig. 29:21 21003 Smith Tetrapl. Fu. Tl 29:22-25 21003 triploid " T2 It " T3 Diploid Fu. 'I Tetrapl. Fu. T4 " T4 v. long cones -53- Commercial Evaluation Five experimental hop lines grown in Oregon, Washington or Idaho were picked for samples to submit to the U. S. Brewers Association's Hop Research Sub-Committee for hand evaluation. Also, samples of "Cluster" varieties grown and handled under similar conditions were submitted as controls (called standards in Tables 20, 21 and 22). Samples were assigned code numbers and were sent to each of 12 Evaluators were also coded by letters. evaluators listed below. U. S. Brewers Association Hop Research Subcommittee members who evaluated 1969 samples: Code Evaluator B Mr. Peter Stroh, President The Stroh Brewery Company 909 E. Elizabeth Street Detroit, Michigan 48226 L Dr. Vincent Bavisotto Technical Director Theo. Hamm Brewing Co. 720 Payne Avenue St. Paul, Minnesota 55118 K Dr. John B. Bockelman Technical Director The F. & M Schaefer Brewing Co. 430 Kent Avenue Brooklyn, New York 11211 Dr. Paul Glenister J. E. Siebel Sons' Co., Inc. 4055 S. Peterson Avenue Chicago, Illinois 60646 H J Mr. Frederick J. Haas John I. Haas, Inc. 815 Connecticut Avenue Washington, D. C. 20011 Mr. L. S. Gimbel, III President S. S. Steiner, Inc. 655 Madison Avenue New York, New York 10017 Code G Evaluator Mr. Rodney S. Hansen Olympia Brewing Company P. 0. Box 947 Olympia, Washington 98501 Mr. Willard Hays Adolph Coors Company Golden, Colorado 80401 Dr. Paul H. Hoskins Anheuser-Busch, Inc. 721 Pestalozzi Street St. Louis, Missouri 63118 D C Mr. Len Saletan Wallerstein Company 125 Lake Avenue Mariners Harbor Staten Island, N. Y. 10303 Mr. John B. Segal The George Segal Co., Inc. 50 East 42nd Street New York, New York 10017 L. H. Bradee (for G. C. Viota) Jos. Schlitz Brewing Co. 235 West Galena Street Milwaukee, Wisconsin 53201 Table 20. Summary of USBA Evaluation, 1969 Samples Potential Hop type r--4 4.' TS 4-4 0 Sample Identification Indicated yield Bales/Acre Alpha Beta Oil Desirability score (0-15) ri o Ci.) g co $.4 g 0 4-e .1-1 z X 4-, 0 u 4-> o g 0 W-Std = Yakima Cluster 9-10 6.8 4.8 0.7 7.0 2 7 2 3 1 7 = 65043-14 9-10 5.2 4.1 0.7 7.3 2 6 3 1 4 5 9-10 7.1 5.7 - 9.3 7 3 1 4 1 9 6.5* 5.3 - 9.2 6 4 1 3 2 8 W-1 I-Std = Late Cluster I-1 = Idaho Sel. 40 10-12 1 ul -p. 0 -Std = Yakima Cluster 9-12 1 10.3 6.2 1.0 11.7 6 5 0 9 1 4 0-1 = Sel. 21001 6 5.4 5.2 0.8 9.6 2 9 0 3 6 3 0-2 = Sel. 62013 12-14 13.3 5.5 2.8 9.5 3 6 2 8 1 3 0-3 = Sel. 64007 10-12 5.1 4.3 0.9 8.5 3 5 3 3 8 2 * An average of six other samples was 5.3 alpha and 5.4 beta. Table 21. USBA Hop Research Committee Evaluation, 1969 Samples Sample W-Std - This sample represents a commercial 'Cluster' variety which was grown in Washington and should be considered as a standard; 6.8% alpha, 4.8% beta, 0.7 oil. Evaluator Hop type Desirability Potential Remarks (0-15) H Continental C Other K Other 10 limited downy mildew? 5 none poor quality hop; small cones; typical. 9 unlimited pleasant, sweet floral fragrance; better hop, but not the best. I Extract & Other 7 limited over-dried? russet discoloration; wind damage? lup. lemon-yellow, plentiful, aromatic, estery, sticky. unlimited good kettle hop; good aroma. F Other 14 J Other 5 limited heavy discoloration; little breakage; aroma unpleasant, sharp, pungent; lup. fair color and adequate quantity. G none 0 none not typical and cannot be considered standard - suspect spider infestation. A Extract 6 limited appearance poor; wind burnt and brittle. L Other 10 limited weathered, dry pleasant aroma. B Extract 6.3 limited badly picked, stained, greenish-brown; aromatic with slight medicinal character. 5 limited coarse cones, aroma fair with some sharpness. Other Table 21 cont. Sample W-1 = Variety is high yielding and late maturing. The sample was obtained from a planting established in 1969. 5.2% alpha, 4.1% beta, 0.7 oil. Desirability Evaluator Hop type (0-15) H Continental 9 limited C Other 9 unlimited nice hop except low alpha; not typical Yakima Cluster; nice aroma, perhaps too sharp, but low alpha detracts. K Other 9 unlimited bulk aroma not attractive, but rub-up was sweet-floral I Other 7 limited some wind damage; color dark green with red and russet discoloration; lupulin pale lemon yellow, not plentiful, mod. sticky, mild aroma, v. sl. musty F Continental 10 limited similar to Tettnang of Germany; delicate aroma J Continental 6 none medium-size, unbroken, compact cones; aroma mild, almost neutral, slightly unpleasant, lup. scarce and immature, dull luster. none nice, but reddish coloration; aroma ok; low alpha. G Potential Remarks A Other 6 none very little character L Continental 7 limited more pungent aroma than W-Std. B Extract 7.5 limited poorly picked, discolored; mod. lup., mild aroma,strawlike, poor. E Other 5 limited poor, bitter aroma, slightly cheesy. Table 21 cont. Sample I-Std - This sample represents a commercial 'Cluster' variety which was grown in Idaho and should be considered as a standard; 7.1% alpha, 5.7% beta. Desirability Evaluator Hop type (0-15) Potential Remarks H Other 13 unlimited very suitable hop for almost any purpose. C Other 9 unlimited ordinary cluster; over-dried; good all-around hop. K Other 0 none aroma sour, not pleasant, no good, poor standard, earth-decay note. I Extract & Other unlimited cones broken, small to med. size; lup. lemon yellow, plentiful, quite sticky, aromatic, pleasant, wellbalanced. F Other 11 11 unlimited cones compact and small; lup. dark, fair quantity; aroma neutral, lacking character and bouquet, fair luster. G Extract & Other (Kettle) 12 unlimited not typical or standard of Idaho hop in appearance. 7 limited powdery, lacks character A Extract L Other 12 limited pleasant aroma B Extract & Continental 10.7 unlimited rather dry, med. size cone, yellowish-green; lup. plentiful - deep yellow to orange, fairly aromatic and pleasant. limited flavor off, strong aroma. E Other 5 I cri 4 1 Table 21 cont. Sample I-1 = Variety is high yielding and medium maturing. 6.5% alpha, 5.3% beta. Hop would probably have good storageability; Desirability Evaluator Hop type (0-15) Potential Remarks H Other 8 limited v. mild flavor, good yield. C Other 9 unlimited ordinary cluster, over-dried. K Other 0 none sourish, earth-decay, not good. I Extract & Other 12 unlimited cones partly broken, med. size, pale olive green, glossy; lupulin lemon yellow, plentiful, sticky, aromatic, estery; continental aroma. F Other 12 unlimited acceptable kettle hop, aroma good. J Other 11 unlimited med. size, bold cones; lup. plentiful, dark; pleasant aroma, good bouquet. G Extract & Other (Kettle) 13 unlimited nice hop, alpha slightly low for extract purposes. A Extract 9 limited a fair hop L. Continental 9 limited pleasant aroma, sticky B Continental 9.7 unlimited med. to small cone, light green, lup. fairly plentiful, aromatic, slightly low in alpha. E Other limited aroma slightly off, some Fuggle characteristics. 8 Table 21 cont. Sample O-Std - This sample represents a commercial 'Cluster' variety which was grown in Oregon and should be considered as a standard; 10.3% alpha, 6.2% beta, 1.0 oil. Desirability Evaluator Hop type (0-15) Potential Remarks H Extract 11 limited very nice strong but smooth flavor C Other 15 unlimited beautiful hop, nice aroma, excellent flavor K Extract limited strong sulfury notes, bulk odor, rub-up not too exciting I Extract (v. good) 13 unlimited cones well compressed, unbroken, glossy, medium size, color pale green, quite uniform F Extract & Other 14 unlimited good kettle as well as extract hop J Extract 13 limited med-sized, whole cones; lup. plentiful, good color aroma powerful but pleasant; good luster G Extract & Other (Raw Kettle) 15 unlimited excellent hop A Extract 10 unlimited a good hop L Extract 12 limited pleasant aroma B Extract & Continental 13 unlimited med. to large cones, slightly stained, lup. fairly plentiful, quite aromatic, pleasant limited strong, sharp aroma, slightly cheese Other 8 5 Table 21 cont. Sample 0-1 - Variety is very early maturing and consistently yields 6 to 7 bale/acre. In 1969 this variety was harvested on August 1, which was two weeks earlier than previous years. This hop would require minimal storage conditions; 5.4% alpha, 5.2% beta, 0.8 oil. Desirability Evaluator Hop type H Continental 10 unlimited continental gloss, nice color; very useful hop for good lager beers, but not suitable for extracting C Other 12 limited very nice hop, too bad alpha is low K Other 12 unlimited pleasant flowery aroma; continental aroma I Extract (limited) limited cones sl. broken, dry, some wind damage; lup. dark yellow, plentiful, sticky; aroma pungent, spicy (0-15) 9 Potential Remarks F Continental 12 limited acceptable kettle hop in combination with higher alpha hops; flavor like European varieties J Continental 9 limited cones small, but whole & discrete, formation compact; lup. plentiful, color poor; aroma mild; dull luster G Continental 12 limited uniform cones, good color; low alpha & continental character limits hop to those who use continental type. A Extract 8 limited a fair hop L Continental 6 limited less pleasant aroma than 0-Std. B Extract ? Continental limited small to med. cones, stained, dry; lup. normal amount, more than analysis indicates; aroma mild, pleasant E Other limited aroma similar to Fu., but slightly less desirable 10.3 5 I a\ c) Table 21 cont. Sample 0-2 - A vigorous late maturing variety with good yield and quality. Variety does not perform satisfactorily when grown under seeded conditions. Hop would probably require cold storage conditions; 13.3% alpha, 5.5% beta, 2.8 oil. Evaluator Hop type Desirability Potential Remarks H Extract 13 limited very nice for extract - milder flavor than Bullion and Brewers Gold; good quality C Extract 12 unlimited nice hop; alpha & yields excellent K Other 10 limited sweet fragrance, almost too sweet; too good for just extract to produce bitterness. I Extract & other 12 unlimited cones well compressed, large, sl. broken, quite glossy, pale green, some discoloration; lup. lemon yellow, abundant; sticky; richly aromatic, pleasant. F Extract 5 limited high alpha; aroma not desirable J Extract 14 limited cone size med to large; aroma good; lup. plentiful, but orange-yellow; good luster G Extract 10 limited nice sample typical none a trace of foreign non-hop character resembling strawiness or woodiness A 5 ok for extract; peculiar estery aroma - not L Extract 14 unlimited more intensly aromatic than 0-Std. B Extract E Continental 9.7 limited large cones; lup. plentiful; slight unpleasant aroma; limited because possible off-flavor imparted to beer none aroma very poor, cheesy characteristic Other 0 Table 21 cont. Sample 0-3 This variety is late maturing and high yielding. The sample was obtained from a planting established in the spring of 1969; 5.1% alpha, 4.3% beta, 0.9 oil. Desirability Evaluator Hop type (0-15) Potential Remarks H Other 7 none immature; difficult to rate Cq Continental 5 limited beautiful looking, no flavor K Continental 11 unlimited very interesting, high pitched note, trace of continental type I Extract (limited) & Continental 12 unlimited cones well compressed, mostly small, some med., blue-green, glossy; lup. pale lemon yellow, not plentiful; sticky; fine mild aroma, pleasant F Continental 10 limited could be used as kettle hops in combination with regular clusters; rather delicate aroma J Continental 8 none small cones, whole & compact; lup. scarce, immature; aroma grassy, unpleasant; dull luster G Continental 13 limited nice appearing-uniform cones of good color A Extract 11 unlimited a good hop L Continental 9 limited less pleasant aroma than 0 -Std B Extract E1 8 limited small cones, not mature; aroma mild, pleasant; alpha acid too low for gen. use; resembles European Hops - 0 none green-weedy aroma, unsatisfactory quality Continental Saaz E Other -63- Table 22. Summary of 1969 Brewers Inspection Samples and Other Advanced Hop Lines Evaluated in 1967-1968. Identification Agronomic Pickability Acc. or Sel. No. Pedigree Previous evaluations: 19110 3/8 Belgian Location Ore II It 56013 it Wash 11 Ore 11 Wash 3/8 Fuggle Ore 11 It It Wash Ore 11 111 It tt 1/ 111 11 11 Ida Ore 11 63018 Brewers Gold 3/4 11 It 63019 It 3/4 Brewers Gold tI II North. Brew. tl II Wash 11 Bram. Cross It It 1969 USBA Samples: 21001 Unknown 62013 it It 'Utah WA, 4Su 11 It If /I II 64007 E-2 Ida-40 Ore 11 14EG,3/16Fu,1/8LGp Early C1.-Sel. 1/2 Cluster It Wash Ore Ore Ida Ida Late Cluster 6443-14 L-1 11 Late Cluster Late Cluster-Sel Wash Year Maturity 1965 1967 1968 1968 1969 1969 1965 1967 1967 1968 1968 1968 1969 1969 1968 1969 1968 1969 1967 1968 1967 1968 1968 1969 1967 1968 1969 1969 1969 1969 1968 1969 1969 1969 1969 9/14 L - L 9/17 L 9/15 L 9/5 - L L L - L - 8/31 L 9/8 ML 9/12 L - 10 10 8-9 8-9 12-14 9-10 9-10 10 10 9 10-12 L 8/30 ML 9/5 9/5 Yield B/A L L 10-12 12-14 10-12 Cone type Cone Vine G G G G G P G G G 1-2 2 1-2 3 2 3 3 3 2 2 3 4 2 2 M 2 3 G G G G 2 2 G 2 2 - - 2 2 1 2 2 2 -- vines slipped down string -9/17 VL 10 3 M 4 --possible virus & weak sidearms, 8/29 M 6 G 3 2 ME 6-7 G 8/29 M 4 G 2 2 ME 5-6 G 8/21 E 8/1 VE - L 9/10 L 9/11 L - - G G 10 10-12 12-14 G 10-12 9-10 10-12 10-12 9-10 9-10 9-10 G G G G G G G G 2 3 1-2 2 2 3 2 2 3 3 2 2 2 2 L 9/15 L 8/15 E 9/5 ML ML - 6-7 5-6 L L L 2 -64-- Chemical ml. %a % Oil 7.0 5.5 6.2 4.5 5.4 3.9 6.2 7.4 5.2 6.0 6.1 6.2 7.2 8.2 1.0 1.0 1.3 0.4 0.8 0.3 2.4 2.2 0.8 1.2 1.9 1.7 1.4 8.8 5.9 7.8 5.8 6.1 4.3 8.1 6.1 5.4 5.4 6.2 5.4 6.4 7.5 2.5 MC 11.1 10.6 11.3 7.4 Aroma pl. spice pl. good mild, estery off, smokey mild, acetate off, mild pl. cont. mild, floral 4.8 5.2 4.0 5.5 5.5 5.1 4.3 6.2 7.0 5.3 5.7 4.1 4.8 10.3 5.4 6.5 7.1 5.2 6.8 Comments Fair USBA eval. Good USBA eval. sv. cone DM slip-down Variable cone V. Good USBA eval. Storage test Good USBA eval. floral sl. yellow fl. Off- Station,l2 %seed Storage test Fair baby vigor 12.8 floral mild, pl. -- wilted, poor agronomically 5.6 5.2 0.9 10.8 bl. atypical poor agronomically 13.5 3.7 1.8 7.5 pleasant 10.0 1.2 3.6 str., good 7.3 2.7 1.0 8.0 aromatic, good 6.6 2.5 0.8 mild 6.5 5.4 12.3 13.2 13.3 Disease sl. crown DM Off-Station, 2% seed slip-down Good USBA Discarded Good USBA Discarded Good USBA Good USBA Good USBA Good USBA yellow fleck eval. eval. eval. eval. eval. eval. mild, pl. estery, mild sl. cone DM sl. crown DM Good USBA eval. Good USBA eval. 11.7 10.9 pl. WA str., WA mod. crown DM V. Good USBA eval. 0.9 1.0 0.6 13.2 8.9 estery mild-floral-WA mild-frag. 0.7 0.7 10.3 6.8 1.0 0.8 2.3 2.9 2.8 12.7 11.3 - 6.3 6.5 7.7 mild, cont. off-WA cone 4 crown DM Good USBA eval. USBA-Standard Fair USBA eval. Good USBA eval. USBA-Standard Fair USBA eval. USBA-Standard -65- Evaluators were asked to score samples for desirability for their brewing process on a scale of 0=none to 15=highly desirable. They were asked to identify the hops as to type, that is, Continental type, Extract type, or Other type. They were asked to judge whether the hops had unlimited, limited or no commercial potential. Table 20 shows a summary of the evaluation. Because different brewers have different preferences for hops, average "desirability" scores have little meaning. For example, sample 0-2 was given a desirability rating of 14 by Theo. Hamm Brewing Company and 0 by Anheuser-Busch (Table 21). Sample 0-2 (accession no. 62013) produces very high alpha acid hops suitable for extract. Such hops are desired by brewers who use extract but usually not desired by brewers using hop in the conventional manner. Sample 0-2 (62013) was picked by most evaluators as a potential extract hop; sample 0-3 (64007) was identified as a continental type by most evaluators (Table 20). Table 21 shows the individual evaluations of each hop sample, and lists comments by evaluators. For our records, a summary table of all U. S. Brewers Association evaluations for 1967, 1968 and 1969 was prepared (Table 22). Off-station production for brewing trials Three advanced selections (56008, 56013, 58112) were grown commercially in blocks of two acres each to produce hops for brewing trials. The pertinent data and observations on these selections are as follows: Variety 56008. This selection, grown by Stauffer Brothers, Hubbard, Oregon, was discarded in July, 1969 because of its extreme susceptibility to downy mildew infection of flowers and cones. The variety is resistant to rootstock infection and could be grown in Washington or Idaho without problems from mildew; however, it does not produce well in those areas. Selection 56008 has been dug out and removed from our program. Variety 56013. This selection now appears to be the best of the three "Off-Station" varieties, all things considered. Selection 56013 is midseason in maturity (about September 1) and was grown by Mission Bottom Farms, Salem, Oregon. It has a strong Fuggle background in its parentage. It has features of continental-type hops such as an alpha-acid, beta-acid ratio near one, a low cohumulone ratio, and a mild but characteristic aroma. Selection 56013 requires refrigeration during storage. Brewers using continental-type hops should be considered for test brews. This variety performs exceptionally well grown seedless. It has darker green color in sample which does not indicate immaturity. It retains its green color during harvest season better than other varieties and cones are not damaged or discolored by wind and adverse weather. It has downy mildew and Verticillium wilt resistance. -66- Variety 56013 performed well in both 1968 and 1969. In 1969 it was exposed to both a severe downy mildew situation and a heavy spider mite infestation. The cones were not damaged from mildew or mites to the extent other varieties were. This ability to hold cone color for a long period in spite of adverse conditions is characteristic of the variety. The grower considered 56013 "a very good hop to grow; it is easy to train and manage and it produces well and picks easily." Harvest date Acres harvested Yield per acre Seed content (%) Leaf E stem (%) Alpha acid (%) Beta acid (%) Oil (m1/100g) 1968 8 Sept. 1.6 1,760 lbs. 12 1969 30 Aug. 2 2,100 lbs 4 2 1 6 7.2 5.4 6.4 1.2 1.4 Twenty-two bales of the 1969 crop of 56013 are in cold storage at the Washington State Hop Producers Warehouse, Yakima. The following information sheet on 56013 was prepared and distributed to interested growers, dealers, and brewers. Information Sheet for USDA Experimental Hop Variety 56013 (February 1, 1970) The information provided here has been obtained from numerous small plot tests in Oregon and Washington and from one two-acre commercial production test for three years in Oregon. This hop will be released as a new variety if sufficient interest by brewers is indicated. Pedigree: 5/16 Fuggle; 1/8 Serebrianka; 9/16 unknown. (Serebrianka is a Russian Variety) Maturity: Midseason Yield: 2000 to 2500 pounds per acre, seedless; no advantage by growing it seeded. Growth Habit: Produces abundant, erect, slender, easily trained shoots. The vines twine closely to the string and do not tend to slip down or fall away. 56013 forms an even growth up and over the wire without a dense "head". Hops are well-distributed up and down the vine in definite "clusters". The cones "hang well", that is they hold quality and color for 10 to 20 days after reaching adequate maturity for harvest. 56013 withstands adverse weather conditions without discoloration better than other varieties. -67- Propagation: Produces rhizome cuttings abundantly when properly managed. Care must be taken to adequately prune the hill because it tends to spread out unless cut back closely. Disease Reaction: Has resistance to downy mildew better than Bullion but not as good as Fuggle. Has tolerance to strains of Verticillium wilt found in Pacific Northwest hopproducing areas. No serious virus diseases have been observed in 56013. Picking: CompactYpick easily, resulting in very little shatter. Drying: Dries easily when seedless; care should be taken not to overdry. When dried to 8 to 9% moisture, it bales well and produces very attractive inspection sample. Cone size: Medium Cone color: Usually darker green than present commercial varieties. This is often mistaken for immaturity, but is a variety characteristic. Cone condition: Cones are very dense and pick easily, resulting in mostly whole cones. Excessive shattered or broken cones would indicate poor handling. Lupulin: Plentiful, of yellow to orange color. The deeper yellow-orange color of the lupulin is natural and should not be attributed to overdrying. Analysis: Alpha-acid - 6 to 7%; Beta-acid - 5 to 6%; Ratio of a/0 - usually slightly more than one; Ml. oil per 100 grams - 1-2; Cohumulone content of a-acid - 15-25%; Oil composition - similar to Fuggle, Styrian, Spalt, or Tettnang in farnesene content, no unusual features. Aroma: Characteristic, pleasant. Storage stability: Similar to that of Bullion. Should be refrigerated within a week after harvest. 26° F. appears to be adequate for practical storage. Acreage: Two acres mature in 1970, 4-5 additional acres anticipated for baby crop in 1970. Cooperating growers: Don Weathers Mission Bottom Farms 9775 Wheatland Road, North Salem, Oregon 97303 Tele: 503-363-6154 one. -68- Wayne Hoag 1120 Budd Street Prosser, Washington Robert Coleman Sr. Coleman Ranch Route 1, Box 290 Gervais, Oregon 97026 Tele: 503-633-2461 99350 John B. Segal The Geo. Segal Co., Inc. 50 East 42 Street New York, N. Y. 10017 Tele: 212-687-8990 Stauffer Brothers Route 1, Box 55 Hubbard, Oregon 97032 Tele: 503-982-9393 Cooperating brewers: 1968 Crop: 1969 Crop: USDA contact: Dr. C. E. Horner Department of Botany and Plant Pathology Oregon State University Corvallis, Oregon 97331 Tele: 503-754-1507 Carling,Olympia, Schlitz and Stroh Anheuser-Busch, Coors, F. E M. Schaefer and Rheingold Variety 58112. This is a late-maturing hop grown by Coleman Ranch, St. Paul, Oregon. Its analysis is similar to Cluster varieties with a medium-high alpha acid content with relatively high cohumulone ratio. It has excellent storage characteristics and is resistant to downy mildew and tolerant to Verticillium wilt. Selection 58112 has several shortcomings that might seriously limit its success as a variety. Spring growth is delayed and sometimes uneven; some years male flowers are produced abundantly. In 1969 a virus disease greatly damaged 58112 in our OSU test plots; however, it was not damaged in the commercial trial. Harvest date Acres harvested Yield per acre Seeds (%) Leaf & stem (%) Alpha acid (%) Beta acid (%) Oil (m1/100g) 1968 14 Sept. 1.7 1969 1 Sept. 1,720 lbs. 2,200 lbs. 2 3 0 3 8.9 3.5 8.3 3.6 1.1 0.8 2 Twenty-one bales of the 1969 crop of 58112 are in cold storage at Washington State Hop Producers Warehouse, Yakima. Recommendations for disposition of "off-station" varieties Selection 56008 has been discarded from our tests and has been removed from off-station plots. 1. 2. Selection 58112 will be discarded unless one or more brewers show special interest. We have better selections coming along. -69- Selection 56013 is recommended for release as a new variety provided one or more brewers or extractors become interested in it. If a brewer could substitute hops of 56013 for Fuggle or other European types, it has several advantages: Its yield potential is about double that of Fuggle; it produces exceptionally well as a seedless hop; it has good disease resistance; its ability to produce is not affected by adverse weather to the extent that Fuggle is. 3. Plans for Selection 56013. The three Oregon growers of off-station varieties are all interested in growing 56013 and promoting it as a new variety. Their intention is to each grow a small acreage and provide dealers, brewers, and extractors with test and promotional samples. One Washington grower will begin commercial testing in 1970 and another grower made a planting in March, 1970. Other advanced selections Selection 62013 is a new and promising high analysis hop which we have been evaluating for three years. It is a vigorous, high-yielding, late-maturing hop with a characteristic golden-green foliage which distinguishes it from all other commercial varieties. Some analytical data are as follows: Location Corvallis Prosser 1967 Alpha Beta Alpha Beta Alpha Beta 12.3 13.2 4.7 13.3 11.6 5.5 4.4 4.0 1968 1969 Selection 62013 appeared to us to be of special interest to extractors. Therefore, we provided major extractors with samples and have received very favorable response. One extractor wishes us to proceed with commercialization of the hop as rapidly as possible. Another describes 62013 as a remarkable hop with very good extract properties. Selection 62013 was included in Brewer Inspection Samples submitted in 1969 to the USBA Sub-Committee on Hop Research. We have additional small quantities for persons especially interested in testing it. Presently we have moved 62013 into a rapid propagation plan and expect to have planting stock for commercial trials available by 1971. In 1970 we will have 20 mature plants at Corvallis from which we expect about 60 pounds of hops for further evaluation. Selection 62013 will again be grown in Washington in 1970. Agronomic evaluation of 62013 is far from complete. We have inadequate information on its resistance to downy mildew; however, it appears to have good resistance in our test plots. We have no information on its reaction to Verticillium wilt or virus diseases. Selection 62013 should be grown seedless. Its indicated yield potential is 2,000 - 2,600 pounds per acre. -70- Selection 19110, a European type with good yield potential, has been evaluated for several years. Selection 19110 received consistently favorable evaluation by the USBA Sub-Committee. The 1968 sample planned for brewer inspection was damaged by a dryer fire at Prosser and the 1969 sample showed an abnormally low alpha acid which we believe is not characteristic of the variety. Thus our evaluation of 19110 has been delayed, but will continue. It has less tolerance to Verticillium wilt than Fuggle, Bullion or Clusters. Table 22 shows a summary of agronomic and chemical evaluations of advanced lines. -71- Hop Diseases Hop downy mildew Advanced selections must be thoroughly tested for resistance to downy mildew before release as new varieties. This is an on- going program as new selections are advanced in the breeding program. Table 1, below, shows mildew reaction of most of our advanced selections to both the crown rot and foliage blight phases of downy mildew. Table 1. Summary of reaction of advanced hop lines to downy mildew inoculation. Genotype Crown aj Infection (%) Yakima Cluster (Susc.) Fuggle (resistant) 56013 56008 58112 19110 21001 62013 Foliage J Infection 92 19 28 41 4.0 0.8 1.8 0 0.7 3.3 20 0 Classification (0-5) 3.9 - Susc. Res. Res. Susc. Res. Intermed. Res. 20 1/ Percent infection based on a minimum of 20 plants. 12/ Foliage infection scored on a scale of 0 to 5 meaning severe infection. About 20 plants each of 17 other hop genotypes were tested in the greenhouse for resistance to downy mildew (Table 2). These were mostly selections in the intermediate stages of advancement. Several were rejected from further consideration because of susceptibility to downy mildew. Some data was obtained on 26 triploid genotypes (Triploids, Table 2), but this must be considered preliminary because of insufficient numbers of plants. Another 250 plants of Early Cluster (strain E-2) were tested for mildew resistance. These were the survivors of previous material which has been treated with the mutagenic agents, ultra violet radiation and ethylene methane sulfonate, for the purpose of inducing a resistant mutation in the mildew-susceptible Early Cluster type hops. Among the 250 plants, 33 either were resistant or escaped infection and will be retested in 1970 (EMS and UV, Table 2). The normal "escape" percentage for Early Clusters is about 10%; therefore, most of the survivors were probably escapes, but if there is only one resistant plant, the UV and EMS experiments will have been successful. -72- Table 2. 1969 Results of Greenhouse Assay of Hop Genotypes for Downy Mildew Crown Infection No. Genotype Tested No. Infected Infection Remarks 17 severe, 2 light infection 11 severe, 2 light infection 2 severe, 3 light infection All 7 light infection Yak. Cluster Brewers Gold Fuggle T4 Fuggle Bl 22 19 20 24 19 13 7 68 25 29 21001 62013 63020 20 20 21 0 4 20 10 48 6616-11 6619-12 6619-01 6619-08 6619-08 20 21 20 20 19 9 45 14 4 5 67 20 25 2 11 6618-19 6618-05 6618-20 21 21 15 0 0 9 2 43 13 Some vascular brown; not DM Severe rot development One severe; one in pith only 6620-10 6620-21 6620-06 20 19 20 8 40 Rot development as in B.G. 0 0 0 0 6616-02 6616-04 6616-23 6616-24 6659-03 EMS-0.75% EMS-0.50% UV-10 UV-5 UV-2 24 16 19 3 13 44 16 Triploids 6769-16 6765-12 6759-2 6763-10 6756-4 6771-13 6753-20 6753-23 6763-25 6769-47 21 17 56 38 63 70 23 3 9 3 3 5 7 3 0 17 34 31 59 62 21 1 1 3 2 4 6 4 4 4 2 3 3 0 2 2 2 86 0 No evidence of spreading infection Light infection as in Fuggle B1 Infection type comparable to B.G. 7 severe, 2 light; comp. to B.G. Severe, rapid rotting Incidence low but rot severe Rot progress similar to B.G. Too small for good test Too small for good test Only 1 severe; test ok 0 100 63 Very bad Noninf. propagules stored; retest 82 94 89 91 Kept 4 for retest Kept 8 for retest None kept Numbers tested too small for decision making -73- Table 2 cont. Genotype 6753-21 6762-05 6769-05 6763-10 6769-05 6765-02 6770-16 6769-25 6769-17 6763-22 6769-40 6765-01 6756-28 6769-02 6769-08 6777-19 No. No. Tested Infected 3 4 2 5 2 3 1 Infection Numbers tested too small for decision making 0 3 1 3 0 13 2 3 3 2 1 0 Remarks 1 7 6 9 1 3 2 4 5 0 4 3 2 Seedlings from crosses are given a preliminary screening in the greenhouse to eliminate most of those highly susceptible to downy mildew crown infection. In 1969, 1,217 seedlings were tested (Table 3). On the average, 80% of the seedlings were susceptible and were discarded. The seedling test eliminates much material that would otherwise require space and time in agronomic tests. Further evaluation is required; however, because a portion of the susceptible plants in a seedling population always "escape" infection. These are eliminated in our evaluation of advanced selection at a later date. Table 3. Reaction of Seedlings from 1968 Crosses to Downy Mildew Inoculation Cross Purpose No. of cross 6811 6812 6814 6815 6816 6824 DM Res. 6817 6818 6819 6820 Eur. type No. plants tested No. plants infected 63 46 54 39 74 10 8 6 86 85 96 77 75 34 25 73 44 420 252 260 1,217 33 274 211 239 965 65 84 92 79 77 13 Totals Percent infection 75 -74- Verticillium wilt Our techniques for testing hops for resistance to Verticillium wilt have been improved to the extent we feel we can place confidence in the results. In 1969 the advanced selections 19110, 21001, 63018 and Hallertau-S were compared in our wilt nursery with Fuggle and Bullion varieties. In these tests a minimum of 10 plants each are planted in plots separately infested with five different strains of the wilt fungus. Testing for resistance to Verticillium wilt is complicated by the fact that various strains of the wilt fungus are present in most potential hop-growing soils of the Pacific Northwest. Table 4 shows a summary reaction of the varieties and lines tested in 1969 to five strains of the wilt fungus. Table 4. Summary of Verticillium Infection - 1969 Genotype Average infection (%) J Average IV by all 5 Vert. strains Propagules per gram stem Fuggle Bullion Hall.-S 19110 21001 63018 36 15 41 57 55 18 3,048 1,007 16,460 22,781 19,840 1,960 Average symptom !/ severity (0-4) 0.68 0.13 0.73 0.71 0.49 0.31 Based on direct laboratory recovery of the wilt fungus from a minimum of 50 assays per genotype. 121 c/ Based on quantitative recovery of spores of the wilt fungus within the stem tissue; minimum of 8 assays per genotype. Symptoms based on: 0=none, 1=light, 2=moderate, 3=severe, and 4=dead. We have found that one of the most reliable indicators of susceptibility to Verticillium wilt is the degree of proliferation by the fungus in the vascular system of the stems. In 1969, all genotypes in the Verticillium nursery were assayed by cutting sections from the main stem 6-10 inches above the ground, grinding the samples with water in a high speed blendor (Servall Omni - mixer), then plating out the resultant material in a series of dilutions on agar plates. The number of Verticillium colonies that develop on the plates are counted. Calculations can then be made to determine the number of viable propagules of Verticillium per gram of hop stem tissue. Table 5 shows data from the 1969 assays. Two things are clear: Hop genotypes vary in their reaction to different strains of the fungus and there is extreme variability froth plant to plant in the interaction of any hop genotype - Verticillium strain. In 1970 we will work on methods to reduce this variability. Table 5. Verticillium Propagule Counts in Hop Stems from 1969 Verticillium Nursery, September, 1969. Propagules per gram (in thousands) per replication Isolate 138 (Hop) 148 (Hop) 146 (Hop) 95 (Mint) 119 (Potato) Variety Fuggie Bullion Hall.-S 19110 21001 63018 Fuggle Bullion Hall.-S 19110 21001 63018 2 1 32.0 12.5 4 3 2.5 21.0 0 6 5 2.0 0 - - - 0 0 0 45.0 0 .1 .9 3.0 0 3.5 500.0 187.5 6.5 109.0 18.0 2.5 .7 43.0 4.5 0 0 2.0 14.0 7.5 98.5 89.0 23.5 1.6 0 0 47.0 .1 0 3.0 0 3.0 0 - - - 0 0 0 .6 0 0 - - .9 2.0 3.0 25.5 2.0 9.0 0 - 63.5 121.0 14.0 3.5 2.6 0 0 0 0 .1 Fuggle Bullion Hall.-S 19110 21001 63018 2.5 3.1 1.0 0 - Fuggle Bullion Hall.-S 19110 21001 63018 0 0 .4 - 0 - - 1.5 1.0 0 0 0 1.4 0 0 0 1.0 3.5 5.0 - - - - 0 0 0 0 Mean Total 10 9 4.5 0 1.1 3.3 2.0 Fuggle Bullion Hall.-S 19110 21001 63018 8 7 61.9 12.5 49.0 1,009.5 253.6 82.7 12.4 3.1 5.4 101.0 28.1 9.2 3.6 2.0 6.9 47.6 22.5 3.6 .7 .5 .8 4.8 2.5 .4 1 6.6 1.3 .6 .1 0 22.8 42.6 553.6 2.5 6.1 55.4 0 1.0 .1 .8 0 .4 .2 0 0 .5 4.0 5.7 0 0 .1 5.9 7.5 0 0 0 400.0 .5 .5 84.5 0 0 .5 0 0 0 0 0 0 4.0 0 - - - 4.0 0 0 0 0 - - - - 0 0 0 0 0 0 1.0 1.4 2.9 0 - .6 0 2.5 0 0 62.0 0 0 0 0 0 1.0 7.6 0 .1 .1 0 .5 0 2.5 - 0 0 - 0 - - 0 6.0 0 .5 - 0 0 0 0 0 5.5 0 0 0 0 0 0 1.1 - 0 .2 0 0 0 .5 6.0 81.0 0 0 - 3.0 500.0 - 0 - 3.0 1.5 0 0 .1 - 7.5 - 0 - - 1.0 32.0 3.7 19.5 55.0 5.3 2.5 68.5 0 - - 6.0 4.0 14.0 - 0 - - - - - .9 0 0 - 0 0 0 - .2 - 6.5 584.5 10.6 39.6 1.3 73.0 1.8 5.7 0 0 0 0 5.2 0 0 .4 < .1 --A l U 1 -76- Table 6. Verticillium Wilt Symptoms in 1969 Vert. Nursery, Pathology Farm, September 8, 1969 Symptom severity in replication a/ Isolate Variety 119 Fuggle Bullion Hall.-S 19110 63018 21001 95 146 148 138 21 Total Mean 0 2 0 0 .40 .00 .50 .13 .00 .44 1 2 3 4 5 1 0 0 1 0 0 0 0 1 0 1 1 1 0 0 1 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 0 0 1 1 1 6 7 8 0 0 0 0 0 0 0 0 0 9 0 0 0 10 0 4 0 0 4 1 Fuggle Bullion Hall.-S 19110 63018 21001 0 0 0 0 0 0 0 0 0 0 0 0 3 0 1 Fuggle Bullion Hall.-S 19110 63018 21001 1 2 1 1 0 0 2 0 1 1 3 1 1 1 2 0 0 2 3 0 0 0 1 1 1 0 0 0 1 0 0 1 2 0 1 0 0 0 0 0 0 1 1 1 0 0 3 0 1 0 1 1 1 1 5 1.00 0 0 0 0 1 1 1 1 0 1 1 1 7 .00 .70 3 0 0 1 0 12 1 1 1 0 0 0 0 Fuggle Bullion Hall.-S 19110 63018 21001 2 0 0 0 Fuggle Bullion Hall.-S 19110 63018 21001 1 1 Based on: 1 2 1 0 1 1, 0 0 0 0 0 5 .00 .00 .33 .50 '.00 .55 0 5 1.00 0 2 .40 12 9 1.33 1.13 2 5 .25 .50 0 5 1.00 0 1 .25 .78 .60 1 1 0 0 0 1 0 0 0 0 0 0 0 1 1 1 3 3 1 0 1 1 1 1 1 2 0 0 0 3 3 0 0 1 0 0 1 3 1 1 2 1 1 0 0 0 0 0 1 1 0 1 7 0 6 4 4 1 1 0 0 .50 .44 7 1.20 .78 4 .50 0=none, 1=light, 2=moderate, 3=severe, and 4=dead. -77- Virus diseases Collections of plants with virus-like symptoms were made 1964 to 1966, and subsequently a replicated test was established in which virus-infected and virus -free plants of the same genotypes were grown side-by-side. In 1969 observations were made on the symptoms on infected plants in these plots and are recorded below: Bullion-Yellow Fleck: Early symptoms of yellow fleck appear first in lower leaves. Extreme stunting and failure of side arms to develop. Upper leaves without distinct fleck but chlorotic, leathery, small and dull. Fleck symptoms gradually progress upward. Plants remain extremely stunted, often not reaching the wire. Fuggle-Yellow Fleck: Yellow flecks develop first on lower leaves and gradually progress upward. Plants are not stunted. Side arms are well developed; better than on controls. Split leaf symptoms also present on a few leaves. Fuggle-Rusty Mottle: Symptoms do not appear until about flowering time. Lower leaves first develop reddish-brown interveinal islands which gradually turn brown and die giving bottom portion of plant a rusty appearance. No stunting evident and side arm development is normal. Clone with symptoms may not be true Fuggle. Fuggle-Severe Mosaic: First symptoms appear in tips and young leaves when plant is two to three feet high. Leaves are severely distorted, downcurled and dark green. Lightly affected leaves show split leaf blotch symptoms. Growing tips frequently die. Side arm development almost totally absent. Fuggle-Yellows: Apparently this is not a virus disease. Hallertau-Split-Leaf: Yellow fleck develops on lower leaves. Plants are extremely stunted. No side arm development. Leaves are small, dull and leathery but only slightly chlorotic. Split leaf symptoms in some upper leaves. Hallertau-Leaf Crinkle: Plant growth normal except leaf surface tends to be more wrinkled than normal; probably not a virus. Clone may be a variant of Hallertau with normally crinkled leaves. 56008-Yellow Fleck: Bright yellow flecks appear first in lower leaves and progress upward. Side arms short. Plant stunted. Most prominent symptoms are bright yellow fleck and stunting. Dr. Skotland identified this virus as a strain of prunus necrotic ringspot virus. This is the only positively identified virus in the whole group of genotypes listed above. -78- Table 7. 1969 Hop Virus Observations Date: August 14, 1969 - Virus Nursery Observed Symptoms by Hill Number (E to W) Virus Study Group Symptom Type G-2071-3 Sev. mosaic Hallertau Split leaf B M Fuggle Sev. mosaic +++ +++ Fuggle Yellow fleck +++ +++ Fuggle Sev. mosaic ++ 128 -I Split leaf ++ 56-08 Yellow fleck + Hallertau Healthy L. Cluster Virus Fuggle Rusty mottle Fuggle Early yellow Hallertau Leaf curl 144 -I Sev. mosaic ++ Bullion Yellow fleck Fuggle Sev. mosaic Rep 1 Control Yellow fleck Rep 2 Control Yellow fleck +++ +++ Rep 3 Control Yellow fleck +++ Rep 4 Control Yellow fleck +++ 1 2 3 4 ++ - B +++ M ++ +++ ++ +++ M ++ +++ 5 M ++ ++ ++ 4.4. + + B B - - B + ++ + Remarks Yellow fleck Split leaf symptomsno typical mosaic + Split leaf B M Yellow fleck - B B Split leaf ++ ++ ++ ++ Yellow fleck B +++ +++ B B +++ +++ +++ B +++ - + - ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ -79- Table 7 cont. Virus Study Group U W a ;1-. 8 a a 114 w a Observed Symptoms by Hill Number (E to W) Symptom Type 1 Rep 1 Control Yellow fleck Rep 2 Control Yellow fleck Rep 3 Control Yellow fleck Rep 4 Control Yellow fleck Rep 1 Control Severe mosaic Rep 2 Control Severe mosaic Rep 3 Control Severe mosaic +++ Rep 4 Control Severe mosaic 2 3 4 5 ++ ++ ++ ++ ++ - M - ++ ++ ++ + ++ - + - + ++ ++ - + ++ ++ M - ++ ++ co ++ +++ ++ ++ co 8 t9 S = P. w -a H H o Rep 1 Control Rusty mottle of lower leaf Rep 2 Control it Rep 3 Control ,I = ra. Rep 4 Control II w am Rep 1 Control .,. >-. + + ++ + - - B ++ - +++ +++ - - +++ +++ +++ - - + - - E.- m o p4 w a - co C..D Early leaf chlorosis - - - - - - c..D o co a o.i., a L.L1 }' Rep 2 Control II - Remarks -80- Table 7 cont. Observed Symptoms by Hill Number (E to W) Virus Study Group Symptom Type Rep 1 Control Split leaf and curl Rep 2 Control Rep 1 Control II II Leaf curl and stunt 1 2 3 4 5 +++ +++ +++ + ++ - - - - - ++ B +++ ++ ++ + + + = Split leaf E- as Rept 2 Control x a oo 03 0 in 0 aa Rep 1 Control Yellow fleck and stunt ++ +++ Remarks ++ Rep 2 Control B = baby replant + to +++ = increasing symptom severity ++ ++ ++ -81-- In August, 1969, detailed observations of symptom severity were recorded (Table 6). A condition in Bullion variety called "Yellow Fleck" is the most severe. Also severe are conditions called "Severe Mosaic" in Fuggle variety and "Yellow Fleck" in genotype 56008. Five-hill plots (four reps each) of infected and adjacent healthy hills were harvested and yields of green hops recorded (Table 7). Table 8. Yields from virus-infected and adjacent healthy plants in 5-hill, replicated plots, August, 1969. Variety and Virus-like condition Yield in replicationl/ Mean a/ yield 2 3 4 7.5 14.8 5.7 14.4 12.8 15.0 20.3 10.3 2.0 24.6 2.8 28.1 4.5 32.3 2.9 28.1 1 Fuggle - Severe Mosaic: Infected Normal 15.5 16.2 Bullion - Yellow Fleck: Infected Normal 2.2 27.3 56008 - Yellow Fleck: Infected Normal estimated yield it 25 15 Yield expressed as pounds of green hops per plot. Clearly, all three virus-like conditions reduced yields. yellow fleck disease in Bullion hops caused drastic (about 90%) reduction in yield. Reduction of yield in 56008 by yellow fleck was about 40%. The yellow fleck condition in 56008 was shown by Dr. C. B. Skotland, Prosser, Washington to be caused by a strain of prunus necrotic ringspot virus. -82- Hop Physiology and Propagation Propagation of advanced lines: Forty-five hop selections were increased to provide planting stock for future testing. Based on the eight-year testing plan, hop root stock is required in the third year for evaluating reaction to downy mildew, Verticillium wilt, and viruses. Approximately 50 to 300 roots are available from each of the 45 hop lines. Twenty-five of the lines were planted to 10-hill observation plots in 1969. These lines were evaluated for quality and vigor this year and will be tested for disease reaction in 1970. The other 19 lines, which were increased, are high quality selections used as a model for advancing new hop lines. This program is in the third year of the 8-year testing plan as follows: Year Evaluation Stock 1966 Make cross 3000 seed 1967 Vigor, visual analysis, remove males, reject abnormal lines and selected 106 lines 1 hill each of 1000 genotypes 1968 Yield, lab analysis, commercial potential, cultural, storage, and selected 19 lines for propagation. 1 hill each of 106 genotypes 1969 Yield, lab analysis commercial potential cultural, downy mildew, virus 1 hill each of 106 genotypes plus 100 roots each of the 19 lines 1970 10-hill observation for yield, quality, Vert. wilt and USBA hand eval. 10 hills each of selected lines plus 300 roots 1971 Yield, quality, virus indexing 1000 roots 1972 Yield trial, off-sta. 5,000 roots 1973 Yield trial, off-sta. test brew. 50,000 roots -83- Evaluation of new lines Twenty-five selections were evaluated in a 10-hill seedless observation block (Table 1). Data was obtained on maturity, vigor, yield, cone type, pickability, chemical analysis, aroma, disease reaction and hop type (European extract). Fourteen lines were selected as worthy of additional evaluation. These 14 lines are listed in Table 6 in the section of this report on Breeding and Evaluation. Thirty-one selections grown in observation plots at Prosser, Washington were evaluated (Table 2). Also, a single-hill nursery of 130 genotypes was established at Prosser from material in the 1966 Corvallis nursery (Table 3). Nineteen lines were selected for vigor and harvested for preliminary chemical evaluation. From these, the following 10 lines were selected for further advancement at Prosser: 6502-06 6503-22 6503-25 6512-11 6517-24 6527-21 6530-12 6532-03 6532-04 6532-14 Table Sa lists in the Breeding and Evaluation section the lines from the 1968 nursery at Corvallis which will be planted at Prosser in 1970. A large number of selections going to Prosser, especially from the 1968 nursery, are from crosses with "Cluster" varieties. The crosses were made in 1966 and 1967 and reflect our emphasis on improving the "Cluster" type. As part of breeding and evaluation, data on maturity, yield, cone size, quality, and disease reaction was obtained on 126 female triploids. Table 4 shows the data which will be used to select genotypes to be grown at Prosser, Washington. Selections to be grown at Corvallis are listed in Tables 11 and 12 under Breeding and Evaluation. Evaluation of hops in seedling year. Techniques for evaluating and propagating hop plants established in the field from seed has been successful. The success is reflected in different areas of research, but my enthusiasm (CEZ) rests with the fact of working with larger populations in the field. Large populations in the field are reduced by removing males, hermaphrodites, dwarfs-abberrations, virus and other disease-like types. The remaining population can then be evaluated for selecting germ plasm to be incorporated into a breeding program, for determining the inheritance of the factor(s) used in making the cross, and for selecting genotypes with commercial potential. This type of program was initiated in 1966 and repeated in 1969. Results are reported under Hop Chemistry: Trial crosses for high analysis. Correlation of plant morphology and yield The following parents were used in a yield-quality study: -84- Genotype Female Parents Vigor Hallertau Fuggle Lcw MEd. 19105 High ahs Genotype 1.2 1.8 0.2 19170 19173 19058 Male Parents Vigor Low Med. High a/f3 0.6 0.6 0.6 A combinaticn of nine possible crosses was obtained and the progeny evaluated. Data were obtained on: a) b) c) d) e) f) Maturity Percentage of a and (3-acid in lupulin Sidearm length Nodes per sidearm Flowers per node Floral branching pattern/node These data were collected on 106 different male and female genotypes from the nine different crosses. The information has not been evaluated at this time, but preliminary observations indicate that this type of genetic study would provide useful information for studying the inheritance of yield. Relationship of floral initiation, growth factors and supplemental lighting Wye College in England has recently confirmed an earlier Japanese report that hop is a short-day plant. Research workers believe that a critical day length of 14 hours is necessary for floral initiation in hop. It is also known that hop remains vegetative under long days and goes dormant in 8-hour days. Hop plants, like many other flowering plants, must attain a definite stage of growth prior to floral initiation; therefore, this growth stage and critical day length occur during early June with most hop varieties. Late flowering hop varieties may reach the necessary growth stage near June 21 and require the shorter day lengths in early July for floral initiation. An application of gibberellin-A3 to hop, when vines are 5 to eight feet in length, increases the number of hop cones (flowers) similar to the effect of supplemental illumination at the same stage of growth. The supplemental lighting provides the same effect as a long day, hence, when hop plants reach the stage of growth necessary to develop the "flowering stimulus", floral development is halted until the plant is subjected to short days. This flowering behavior of hop may be related to the effect of training on yield, as noted by Mr. C. E. Nelson. Studies of the physiological aspects of hop yield will be continued. -85- ['able 1. Evaluation of 25 hop selections grown in a 10-hill seedless block, Corvallis, 1969. zee 21.5e.. N. fOc&'15ff. ?mon_ PSALM- 6519-01 6310 sv (5E001 x 19179'0 6310-1' 631)) Ix ( 61132 " x Nome( toll 111111 '68 '69 3 Se M G 21 (ammo PI M M LCOSE '68 9 9F8 8. YEPO 1/2 HA. 1/4 SrsP. 1/8 IC, 1/13 x 1.2 ,/.. 0.6 " ) 'm 6213 Pir 1/2 Se..... 1/2 Itrxm MB 1/4 STEP. 3/16 Fu. 1/6 LG. 1/8 LL5/169'68 '69 6312 sv (19105 x 111711) 52013 6322 sv 1 11.2 Jo 1.6 I " 'EA 2410 1/2 Ht. 1/4 El. 1/4 x (5E01 x nosn 6311 NM 6321 Sr 119115 x Mgt 81111 6026 (IP (197118 x 12 1/4 El. 3/16 RI. 1/8 16, 7/16 x 94174 6307 6307 14126 6368 6476 Mrt I '/112 6401 EQ12 It - M 4 " (192119 x 1905911 117 LC. 1/4 El. 1/4 x '68 R 0.6 1/1 LC. 1/4 OM. 1/8 axv. 1/8 x (19318 x 11101) 1,5, /1R 0.7 ,,ronn 907 d.. (11111 x 1905911 63011 64117 ekx. ( ,Ltoti 7 8c( 6412 Pk 6503 114-3i. 11001 x (5E111 x 1991113/4 Ht. 3/16 hl. 1/16 V /2 Fu. 1/4 STSP, 1/9 LC, 1/8 x 119209 x 191791) 1.7 0.0.6 &OM x (5001 x 191043/4 HA, 3/16 Fu. 1/16 x 6517 BC 6657_4,, 6517 BC "127 11 697 1111-SeL (E007x1917311) 6527 LII-SEL ( [" x( " x 9177 '1 6537-14 6532 (V x " 0.6 .71 " " L69219 x (P i 1/4 STSP 1/8 sn LC. 3/8 x ) 1 3/8 Pk, 1/8 EKG. 9/16 x 1,1 VR-6511-01 6538 BC G [59101 x (5E001 x 1918213 3/4 HA, 1/8 Bu. 3/32 BEL, 1/32 x 7.1 3.9 4.5 1.1 6 G Lem 6.2 ___ 5.1 4.3 0.9 ESKER 21-11 9 1 7.2 6.7 1.0 es. serf ___ 4.4 2.2 1.3 G 7,1 3.6 2.5 7.0 7.2 8.0 6.8 5,9 3.8 mew (m) 39) 13.1 9.5 Telex 46 12.1 7.9 7.9 4.3 G orma G G M n. 6 '59 L 6 'EA L FA. DETIAMMIE ow. offs an UX6E G ea 1.3 LOOSE 1 L., v.m2LL P M P 6 LL 1 COE,KT G 9 G t G 2.3 MX, COVACT r, swr. 0.9 '59 '69 P 1-100ECT 7.0 3.1 3.1 0.9 9.9 G G st, LIMPOPO', 11 P 6-1001113 5.1 6.1 4.2 4.7 9.4 0.6 6.3 6.1 4.0 4.6 0.5 1.9 FOR 5.7 5,5 4.6 4.9 0.8 1.1 tax 6.9 7.5 3.5 4.1 1.3 1.2 9.8 4.5 4.4 1,5 13.0 5.8 6.2 2.7 3.7 1.2 1.8 10.2 'G9 9 Se 21 911 M 'EA 29 km E '69 21 '69 29 Pm F G M Co.?. 'EA M G 6 6-92243. '68 '69 3 SEP M M P G Fr M G G '68 '69 3 Se 9 '68 '69 '68 20 AA 'EA Se. 1L4. PIM ..-- aroma 1/4 EKG. 1/8 LG. 1/8 Bmv. 1/16 Ri. 3/W69 '69 1/16 Fu (19213 x 190E01) P 6.5 mm Cart. m '6) NO, P 11.8 STEW MU SMILL 'FA KAM 0.5 1.0 can LOOSE 'fa " x 3.2 1.2 P " 6.1 3.2 P 2.0 4.2 0,6 4.5 ItamL 7.2 VG R '68 1/7 129. 1/4 El. 1/4 x 0.7 0.7 5.0 2.7 L,LE - 18111. 3.2 G L '6) le 3.9 4.2 (Ft:0+ra mefc 1 0( G cm. 91 '68 '69 16 8.1 4.4 .... EMMET - G 21.E 22661 LLG G. lMliORI Last, SOFT n M (1(01. vrp x (V) cemma 1 '69 9- G G ammo M 11 '68 '69 WI PIC"IllaU. corra P 6 ,68 12 E. 1/4 Bo, 3/16 BEL. 3/16 x ,( L 15 SEP It - 1,5 1939 1 '68 '59 x Eaf.-1.121 m x (19311 x 1906291 3/4 FIG. 1/8 619, 1/16 8tv. 1/16 x " P G L 9 " P G - (19:01 x 1918'1) 2.0 1.8 RC L 15 Se L '69 '61 2.0 , BC - PI 15 Se It 1/2 LC, 1/2 x I 1.5 2 -BC 'Eti '69 0.2 ..(2 0.6 1/3V 11 G '68 '69 1.2 ./1 0,6 [19131 22 9 'FA 64i12 x - '68 cow x 5E0191) 0.8 .1.-- ' GOMM leosis V #001(MIC CHPACIEMISTICS Irerrif Rum( '1 G P G M P P G 79 Pus E G 6 G 21 G G VG M G M P m G P P 2E 81 ri G P --- POOR (00, 'nye tem ___ POOR OEEZI. OVER MK - -- TWICE/ Era., Cow. EVE Loo PITCH 3,1 a1 A IA 1 n I: ,I P li V t p sLt 11 ; el el 111 564 0 n mA n h h t" !i 2 .e34-1 AA JAA12.2e2.245-a.-5 e. e! e Z m ,n S, ,.; '!15 = g A i 0 h 1 el el - go. A el '11 7:E: L: el il 4 iL 7 el el. 1 gt 3g 21 MA MA $$ MA AM AM MA I S E 8, AM Table 2. Evaluation of Hop Selections Grown in a Five-Hill Observation Block at Prosser, Washington, 1969 Agronomic Cone 4.) Acc. or Sel. No. 21001 21002 61021 62013 63002 63004 63006 63009 63018 63019 63020 63021 6302-02 6307-23 6308-25 6314-22 6337-11 6337-13 6337-14 6338-16 6338-19 6339-13 6340-15 6344-30 6345-35 6401-17 6402-39 $.4 g Pedigree Cross Hallertau type Fuggle type Hallertau type 6185 Su-S x Utah WA 6223 Fu x Colo WA BG x[Bul x(Bel-S xBel)] 6210 BG x Utah WA 6205 BG x (Fu x Fu-S) 6204 BG x[BG x(EKG x Bav-S)] 6206 11 > It It t a) Cf) tn r-I 3.7 0.4 G OB P Disc. - - P Disc. 5.1 1.4 - 7 4 1 1 1 5 7 2 3 3 3 3 2 4 5 4 5 4 4 2 2 4 BG x[Bulx(Bel-SxBel) ] Backa x(EKG x Bav-S) Bul? x (EKG x Bav-S) BC 5 3 5 BC 5 4 6237 3 5 7 2 2 2 3 3 3 7 2 1 3 3 3 3 5 3 2 9 2 6 4 6 3 8 6 9 3 7 7 4 a 1.1 7-11 7-16 11.6 7-21 5.5 7-14 7-18 9.2 7-21 7-18 7-18 4.2 7-21 7-9 7-14 7-21 7-18 7.9 7-18 4.6 7-7 7-25 7-21 7-2 6-30 7-5 7-11 7-16 6.4 7-7 4.2 7-18 7-16 7.7 5 7 4 a 4.4 6 8 4 2 6220 6202 6205 6213 M Disc. 5 BC1 Fu x Colo WA LC x Utah WA BG x Utah WA Backa x Utah WA LC x (EG x X-S) LC x (EKG x Bav-S) M OB - 3 7 BG x[BG x(EKG x Bav-S) ] 6236 - - 7-5 5 3 sition - 7-7 7 2 ml. - 6 7 4 6 Dispo-..3/ %i3 5 7 Oil %a 3 6204 BC Bul? x Utah WA Burr Date Quality 3,/ 2 BG x(Fu x Fu-S) LC x(Fu x Fu-S) I/ 1/ - - 3.4 0.6 - - - - 5.3 4.7 1.5 0.5 - - - - - - 4.0 2.6 0.9 0.6 4.2 0.8 - P Disc. M OB - Disc. P Disc. Comments similar Corvallis bronze leaf, poor yield earlier than Corvallis 10-15 nodes, poor cone, late Virus 15-20 nodes, WA, good lup discarded at Corvallis Virus - Corvallis M YF, var. cone, rich M OB YF Rich OB M OB P Disc. P Disc. poor yield - 10 nodes, shatter, rich P-M OB 8-15 nodes, var. size poor yield P Disc. P Disc. med-early P Disc. poor yield early? M Disc. M-P Disc. early? P Disc. poor lup, hermaph. P Disc. poor yield 10-15 nodes, poor lup & aroma M OB M-P Disc. shatter, 10-15 nodes med. maturity, v. rich M OB 15 nodes, fair branching M OB M OB Table 2. cont. Agronomic Quality -2-/ Cone Acc. or Sel. No. C)4 to Pedigree 6407-02 6428-07 BG x (EG x X-S) Bul? x (EKG x X-S) 6440-07 6443-14 Density x Colo 3-2 LC x OP 11 Cross a.> o N tr) rla () c cr) Burr Date %a 5.3 3.4 1.0 5.2 5.2 6.3 4.1 0.6 0.7 a 6 7 R&a 8 8 7-21 7-7 8 8 4 7-18 6 6 7 7-9 Oil %13 - Data obtained by C. E. Nelson. Ratings from 0 to 9. Data provided by S. T. Likens. Calculated to 8% moisture. ml. - Disposition P OB M-P OB Comments g. cone & branching (65011) lo lup,15-20 nodes, g. open cone, g. branching M-PDisc. 15 nodes, WA, angels M-G OB BIS-1967, 10-15 nodes, good cone Y Overall evaluations determine whether genotypes will be discarded or continued in the observation block. Table 3. Evaluation of Hop Selections Grown in a Single-Hill Nursery at Prosser, Washington, 1969. Quality a/ Agronomic Cone $-+ Sel. No. 6502-01 -03 -05 -06 6503-06 -11 -22 -25 -27 6512-01 -03 -04 -05 -06 -07 -11 -13 -24 -27 -28 6513-06 -07 -10 -12 -18 -19 -20 Pedigree 19209 x 19172M Fu x [Cats x (Fu-Fu-S)] 19209 x 19173M Fu x[Stries x(LC-S)] 64100 x 19060M Bul x[EKG x(Bav-S)] 56001 x(56001 x 19062M)BC-1 BG x[BG x(EKG x Bav-S)] Cross LL-Sel LH-Sel a C a v-4 a.> cn En 7 7 6 1 5 8 2 2 2 7 5 7 2 N14 7 6 3 7 4 6 3 7 5 3 6 3 3 4 4 6 3 4 3 2 2 2 3 5 6 5 4 6 4 7 7 7 7 5 1 1 1 4 6 7 3 5 5 4 3 5 6 7 1 1 1 2 2 2 4 1 1 3 1 2 1 1 1 2 2 2 4 2 1 Burr Date 7-7 7-11 7-9 7-14 7-9 7-18 7-18 7-16 7-9 7-18 7-11 7-18 7-21 7-18 7-18 7-16 7-19 7-18 7-11 7-16 7-28 7-25 7-11 7-7 7-16 7-18 7-14 %a %a - - - - 5.7 6.1 Disposition Oil mis - 1.2 Comments M Nur - - M-P - G OB-Nur sm cone, fair branch. 8-10 nodes/cone Nur - 4.6 7.4 2.2 3.2 0.8 0.7 M-P - M.GOB-Nur 10 nodes/cone, p. yld. good yield M Nur -- - Nur M-P P 8.2 3.1 1.1 M OB-Nur late, g. lup g. lup, wh. hops p. yield, g. cone p. set, 10-12 nodes M Nur M-P Nur g. lup P var. cone P VP VP VP - sm. cone virus, sm. cone - var. cone Table 3. cont. Quality Agronomic LI Cone Sel. No. 6516-01 -02 -03 -06 -15 -17 -18 -19 -20 -24 -26 -27 -30 6517-01 -02 -05 -07 -11 -14 -15 -16 -17 -19 -21 -22 -24 -25 -27 -28 -29 g Pedigree 56001 x(56001 x 19040M) BG x[BG x (Fu x Fu-S)] 56001 x(56001 x19040M) BG x [BC x (Fu x Fu-S)] Cross BC-1 BC-1 ri a o H P-1 m v.) 3 2 3 1 1 1 2 2 2 4 2 1 3 3 3 1 1 1 2 2 2 4 2 1 3 3 3 1 1 1 2 2 2 4 2 1 3 3 3 2 2 2 5 3 3 6 3 3 dead - - 3 3 2 2 2 2 2 2 2 3 3 5 3 3 2 dead - - 2 2 2 3 3 5 7 3 4 1 1 1 5 3 1 3 3 5 1 1 1 Burr Date %a %8 Oil mis 7-16 7-7 7-18 7-11 7-21 7-16 7-7 7-11 7-7 7-25 7-11 7-15 7-14 7-16 7-16 7-25 Disposition Comments - Virus P inter sex P p M-P VP - P - - - - early, p. cone co c) M-P cone VP - var. P - YF - Mosaic P - 7-14 7-18 7-16 7-14 7-23 - VP VP - var. cone P - 7-14 7-14 7-14 7-18 7-11 7-9 7-7 var. cone VP 4.6 3.5 0.6 - - VP - P - M-G OB Nur green, var. cone, 8-10 - - P - VP VP - nodes Table 3. cont. Quality Agronomic Cone Sel. No. Pedigree 6517-31 -34 -35 -37 -39 -40 -42 -45 -46 -47 -50 -56 -59 6519-02 -04 -06 -08 -09 -10 6524-01 -03 6527-01 -02 -06 -09 -16 -17 -21 56001 x(56001 x 19040M) BG x[BG x(Fu x Fu-S)] 56002 x(56002 x 58015M) (Backa)x(Ba x Utah WA) 19115 x 19058M 19115 x (EG x X-S) 60007 x 19173M Cross BC-1 BC-1 a HH-Sel (SuS x EG x X-S) (Stries x LC- S) g 2 a.> tn cn 1 1 1 5 2 1 4 3 5 1 1 1 5 4 2 2 5 2 4 4 2 1 1 1 4 2 3 5 2 2 5 5 5 1 1 1 4 4 4 5 2 2 2 2 2 1 1 1 3 3 3 7 2 2 2 3 5 2 2 3 5 3 6 4 5 7 1 1 1 8 8 4 8 4 5 3 4 6 4 4 4 7 5 5 Burr Date 7-7 7-28 7-9 7-7 7-14 7-9 7-7 7-28 7-23 7-14 7-7 7-28 7-18 7-21 7-21 7-5 7-18 7-21 7-21 7-7 7-21 7-16 7-18 7-9 7-21 7-18 7-16 7-21 Oil mls %a Disposition M - M-P - P - Comments poor set poor set P P M-G Nur Nur - 1 var. cone, good cluster V. late - var. cone - v. late - poor set VP - virus M-P Nur 3.9 4.3 0.4 3.7 3.5 0.7 M-P Nur g. cone, lo lup, med. matur. vg cone, 10 lup, dense 3.1 1.4 0 .2 5.1 2.8 0.9 M-P Nur P ,-., 1 - M-P co g. yield, lo lup, med. matur. g. cone, brown core Table 3 . Cont. Agronomic 1/ Cone Quality3-/ 4-JF-1 Sel. No. 6530-06 -09 -12 6531-02 -04 -15 -16 -17 6532-03 -04 -06 -07 -10 -14 -15 -18 -19 -22 6533-03 -07 -18 -21 -22 6535-07 -08 -09 a) cbb Pedigree 63003 x OP (BG x Utah WA)x OP 63006 x OP (BG x Utah WA) x OP 63018 x OP BG x(BG x EKG x Bav-S)x OP 63019 x OP BG x[BG x(EKG x Bav -S)]x OP 63021 x OP BG x(Fu x Fu-S) x OP Cross N cd r--1 a>. (/) 4 4 4 8 2 1 5 6 4 4 6 3 4 5 6 4 5 2 3 3 4 8 4 4 8 8 2 6 5 5 6 4 7 7 7 6 4 5 2 4 6 6 6 5 4 4 2 2 2 5 1 2 2 2 4 4 7 3 3 2 1 1 1 2 2 2 1 1 1 3 2 2 7 2 7 2 2 2 -15 -16 1 1 1 3 2 2 -18 2 2 2 Burr Date 7-18 7-21 7-7 7-18 7-25 7-11 7-21 7-21 7-14 7-23 7-7 7-25 7-18 7-11 7-21 7-18 7-18 7-23 7-7 7-23 7-23 7-11 7-21 7-25 7-21 7-21 7-5 7-25 7-7 %a (3/4(3 Oil mls Disposition 4.3 4.3 0.5 M Nur v. late g. yield v. late 3.1 6.2 2.8 2.1 0.5 0.4 P lo lup, shatter 5.9 7.7 6.9 6.7 4.8 4.0 1.6 1.7 1.6 4.0 10.4 4.3 4.2 0.9 1.6 5.5 2.8 0.7 P P str. WA, shatter, lo yld. - M OB-Nur G OB-Nur M-P Nur P P - G OB-Nur Nur M-P - P Comments - M-P - g. c one, 15-20 nodes, g. lup var. white hop, med. matur. shatter, 10 nodes, g. yld. YF - fair lup lo lup, 12 nodes late, g. cone-set, g. lup, 12 nodes white hop, fair lup var. cone. sour, over ripe? YF - Ha type poor lup poor branching - Nur P - v. late Table 3. Cont. Agronomic 1 Quality 31 Cone 4-) Sel. No. 6536-02 -05 -06 -10 6537-02 6538-06 -07 -08 -09 -15 -17 -26 -28 -32 -33 -35 go Pedigree 63010 x OP (same as 36) 56001 x(56001 x 19182M) Hax[Ha x(Bu xBe131-S- BC-1 Be131)] Data obtained by C. E. Nelson. 31 m Cross 63008 x OP BG x (Fu x Fu-S)x OP t.) N 0., as m 2 2 2 2 2 2 3 2 2 7 5 4 1 1 1 2 2 2 2 4 2 4 2 3 5 4 4 4 3 3 2 4 4 3 3 4 3 3 2 4 3 3 5 3 3 4 2 1 Burr Date 7-14 7-14 7-14 7-18 7-28 7-7 7-25 7-7 7-14 7-14 7-16 7-18 7-23 7-18 7-18 7-18 %a Oil mis sition 0.6 P v. good branching lo lup., over ripe poor branching M-P - var. cone Dispo --' - Nur 4.5 2.8 Comments P - - M-P Nur var. cone g. lup P M-P Nur g. lup late Cone si ze, shape and vigor rated 0 to 9. Quality data obtained by S. T. Likens. Calculated to 8% moisture. Overall evaluation of poor, medium, or good. Selections designated Nur will remain as a one-hill planting in 1970, those indicated as OB -Nur will be further increased to a five-hill plot. All others will be discarded. Table 4. Evaluation of Fuggle Triploid Hops for a Nursery Planting at Prosser, Washington, 1969. Agronomic Cross Sel. No. 6753-09 -18 -20 -21 -22 -23 -35 6755-04 6756-04 -25 6959-03 6759-01 -03 6760-02 -04 -05 -09 -11 -16 -20 -24 -28 -29 -41 -43 -44 -47 -52 -58 -61 -65 -68 -71 Yield Fuggle Tx Fu 1-1 it Harv. B/Ac. Sep 2 Aug 26 9.0 11.2 10.2 9.9 8.5 ft " If " tt It tl 19062M 19040M II 19058M OP It Fu 1-1 t, It ft II II II It " " Sep 2 " 4 Aug Sep Sep Aug Aug " 29 2 4 26 29 28 28 28 " 21 " " Sep 3 " 3 " 3 Aug 22 tt " It " ly It ft ft ft ft It II 11 It 29 26 19 26 " 21 21 28 Sep 3 " 3 Aug 28 " 22 " 28 " 15 Sep 3 Aug 22 " 22 9.8 13.0 9.0 9.7 10.4 9.2 11.3 9.4 9.8 10.3 10.6 10.2 10.1 8.9 7.9 12.2 8.9 10.3 14.4 8.3 8.7 11.3 9.8 11.9 11.7 10.1 9.8 12.0 Quality No. cones/ wt mg hill %a Diseases cone %DM 22.2 23.5 22.2 23.0 21.6 21.7 21.2 22.0 22.0 21.7 21.6 21.7 22.2 22.0 22.8 22.3 22.2 23.2 23.2 20.5 20.7 20.1 21.1 21.9 20.9 22.2 23.2 24.2 21.7 26.6 23.6 24.8 19.0 165 180 185 245 150 155 140 175 165 250 240 240 240 235 185 255 275 225 285 170 180 285 260 220 225 195 235 180 190 275 205 290 160 6400 7200 6400 4700 6600 7400 11000 6600 6900 4900 4500 5500 4600 4900 6500 4900 4300 5200 3700 5400 7900 3700 4600 7600 4300 5200 5600 6300 7300 4800 5700 3900 8800 Sp. L %S a/3 5.4 2.5 3.8 3.2 1.4 - - - 2.3 5.8 2,9 3.5 0.8 - - 4.3 4.7 8.3 6.2 3.8 3.7 - 5.6 5.7 7.5 4.8 6.5 Vert. 0 - 3-5 - 0 - 2 - 2/4 2/3 3 - 2-5 - 1.4 SL1 SL1 SL1 SL1 2/4 2 - - 0 - 2-5 - 0.7 0 1.2 SL1 SL1 SL1 2/4 0 - 1-5 0 - 2 2.3 - 3.7 4.8 4.0 4.2 3.2 - 1.5 1.2 1.9 1.1 2.0 - SL1 SL1 - 2-5 - - 1 - 0 - 2 1.6 0 0 - SL1 - 0 0.6 1.7 1.7 1.9 1.8 SL1 5.8 5.9 - - 6.9 6.7 3.4 3.7 1.0 3 - - - 2 - 0 - 0 - 1 - 0 - 2 - 1 - - 2 - - 2 - 3 - - 2-5 - 0 0 - 0 SL1 SL2 0 0 2.0 0 1.8 SL1 Vert Vert Vert Vert lo a, Vert Vert hi cone no.,Vert lo a lo a Vert Vert good strig Vert, shatter goodstrig,loa - 1.8 - - 1 3 3.1 - 1 Comments Vert, poor strig Wn Nur - - 6.7 0 - 1.5 3.8 3.7 3 2 - 5.7 5.4 4.7 - - 5.7 3.3 3.7 8.9 7.8 7.1 2 0 0 - - 2 SL1 SL1 SL1 8.4 5.8 4.8 Disposition DM - 7.9 Virus Wn Nur Vert Vert good strig, Vert lo cone no. lo yield poor strig, Vert Vert Vert good strig, lo a Vert, lo yield Vert, lo yield Vert, poor cone Vert Vert Vert Sy. Vert lo cone no. no roots, immature 2'yines i co Table 4. cont. Agronomic Cross Sel. No. 6760-72 Yield Fuggle Tx Fu 1-1 -75 -87 -104 -106 -119 6761-04 -06 -11 -12 -16 -23 -28 -35 -41 -42 -47 -50 -61 -77 -100 -111 -112 ,, I, Fu 2-4 B/Ac. Aug 28 Sep 3 Aug 15 10.6 9.0 10.9 9.9 12.3 9.5 10.6 " " Sep Aug Aug Aug Sep Aug " " ,, 28 Sep 3 Aug 28 Aug 28 " -117 -120 11 -122 6763 02 Fu 1-1 -05 -09 -10 -16 -18 Harv. " " 22 14 3 28 15 28 3 28 28 28 22 29 Sep 3 " 4 Aug 29 Sep 4 Aug 29 " " 14 29 Sep 4 Aug 19 It " " " 26 26 26 26 7.1 5.6 11.9 14.1 9.6 10.2 10.0 11.9 9.6 10.0 10.9 9.9 9.8 12.7 8.7 10.2 10.3 8.3 9.8 12.2 7.6 14.3 13.1 10.4 8.9 Quality Diseases No. cones/ %a wt mg hill %8 a/a 6.7 4.1 1.7 0 - 2 - - SL1 - 2 - - 0 - 3 - 0 - 3-5 - 0 - - 1 - - 3 - cone %DM 22.7 20.6 21.9 23.1 22.3 23.1 25.7 21.2 16.1 25.5 22.6 22.3 24.6 23.7 22.6 24.8 22.1 23.8 22.8 24.1 22.2 22.4 22.8 24.3 20.9 24.0 22.6 18.8 22.8 21.0 21.5 21.8 195 220 185 170 245 155 220 145 110 265 210 165 140 160 185 200 220 145 190 135 205 175 185 230 255 180 225 185 260 225 160 190 6300 4900 6900 6800 5900 7300 5600 5600 5900 5200 7900 6800 8500 7300 7500 5600 5300 8800 6100 8500 7200 5820 6420 5200 3800 6300 6300 4900 6400 6800 7600 5800 Sp. L. - - - - 6.4 4.6 6.8 3.4 2.5 2.8 - 1.9 1.8 2.5 Virus - 0 SL1 SL1 SL1 DM Vert Disposition 1 - - - 0 - 3 9.5 7.9 5.6 3.1 1.7 2.5 SL1 - 0 0 - - - - - 6.1 6.8 9.5 9.4 3.2 3.7 3.7 3.0 1.9 1.8 2.6 3.1 - - - SL1 3.7 3:4 3.9 2.8 3.9 4.3 5.4 2.9 2.1 2.1 2.9 2.7 2.0 1.4 0 - - 0 - 0 0 0 3-5 6.2 4.8 1.3 0 - 1 - - - SL1 - 3 9.5 7.7 5.1 3.3 1.9 2.3 0 0 0 3/6 0 - 2 - 1.8 SL1 - 0 - 10.9 7.2 8.2 7.9 10.5 8.6 7.8 - - 6.8 3.7 0 Wn Nur Wn Nur SL1 SL1 - 2 - - 2-5 - 0 - 0 3 SL1 - 1 0 - - 0 3 0 - 0 0 - 1 0 0 0 Vert 29+1 Chr., Vert Vert sv. Vert shatter, poor cone poorstrig,31 chr. Vert Vert, lo yield Vert, lo yield large cone, hi a hi yield Vert to sv. Vert. tn poor crown, no roots' Vert Vert, hi a hi a, good cone Vert, 30/31 chr. hi a small cone 1 0 SL1 SL1 Comments - SL1 0 Wn Nur - Wn Nur - Wn Nur Wn Nur Wn Nur - Wn Nur Wn Nur hi a&yield,no roots Vert - hi a hi a large cone Vert Vert - Vert - Wn Nur Wn Nur hi a & yield hi yield Vert Vert, sv. shatter Table 4. cont. Agronomic Cross Sel. No. 6763-19 -20 -26 -26 6765-02 -04 -06 -10 -12 -18 -31 -33 -34 6769-02 Yield Fuggle Tx Fu 1-1 14.4 9.2 6.1 14.2 9.0 12.2 9.7 11.3 11.4 9.6 12.9 9.0 11.2 17.0 15.6 14.5 11.2 10.8 12.9 11.7 8.9 8.3 9.5 9.5 14.1 10.6 11.1 9.9 8.3 10.1 9.6 10.9 8.6 26 II " 8 ,, " 29 " 19 I, " 14 It Sep Aug Sep Aug 2 14 2 26 " 14 " 8 19010M It II II ,, Fu 1-1 Sep 2 Aug 26 " 26 Sep 2 Aug 26 -16 -17 -25 -28 -31 -35 -40 -45 -49 -21 -25 Aug 29 " -11 -14 -18 B/Ac. It -03 -05 -08 -10 6770-13 Harv. " 21 Sep Aug Sep Aug 4 19 4 14 " 21 26 19 19 " " " Sep 2 " 19010M 4 Aug 19 Sep 2 Aug 14 " " 19 21 Quality No.cones/ wt mg hill %a Diseases cone %DM 19.9 21.4 23.4 21.5 20.6 21.4 19.4 19.4 21.5 22.4 22.9 22.4 22.3 20.0 22.3 26.3 21.4 20.7 21.3 24.3 20.9 20.3 21.6 22.2 22.7 22.3 23.4 22.4 21.6 21.5 21.5 19.9 22.5 170 215 245 185 225 210 235 185 320 185 235 205 165 200 165 180 195 220 255 215 205 215 220 220 250 125 240 225 185 275 200 250 245 9950 5000 1400 4500 4700 6800 4800 7100 3600 6100 6400 5100 6300 10000 11000 10000 6700 5800 5900 6300 5100 4500 5100 5000 6600 9900 5400 5200 5300 4300 5600 5100 4100 5.9 5.6 3.5 2.6 - - - 3.3 6.6 7.2 4.0 5.9 8.3 4.3 6.1 7.8 8.4 9.1 7.6 4.4 5.5 9.0 3.1 2.4 3.0 2.0 2.6 a/(3. Sp.L. Virus 1.8 2.1 SL1 SL1 - 0 0 - 2 -5 - 0 - SL1 SL1 SL1 SL1 SL1 SL1 0/3 2.7 2.4 2.0 2.3 2.8 1.7 1.8 3.1 2.5 3.3 4.1 3.7 4.5 3.8 8.5 1.9 0 2.3 2.0 2.0 0.5 5.8 4.7 1.0 1.9 SL1 SL2 SL1 SL1 SL1 3.9 4.1 6.5 1.3 1.8 1.7 1.9 1.9 SL1 - SL1 2.2 0 - 0 3.7 4.5 - 8.5 3.8 - 4.0 7.7 0 Disposition Wn Nur Wn Nur 1/9 0 3 - SL1 0 0 0 2/4 0 0 3/8 0/5 0 0 0 0 0 - 3 0 2 0 1/3 1/3 2/3 0 - 1 0 6/7 3/3 hi yield - Vert-early,1 vine sv. Vert, 1 vine - lo a Wn Nur Wn Nur - Wn Nur Vert, lo a large cone, shatter Vert good cone & a lo a Wn Nur Wn Nur Wn Nur - hi yield hi yield poor cone, 31 chr. Wn Nur poorcrown,noroot,cpen cone lo a Wn Nur 0 - 3-5 - good cone Vert Vert Vert Vert poor strig, hi a hi yield 31 chr., sm. cone Vert 1 - 31 chr., cone morph. 2 - 30/31 chr., Vert 2 - Vert - 2 - 3 - 0 0 Comments - '2 SL2 6.7 0 0 0 0 Vert 0 1.1 - 5.1 7.5 10.9 7.1 8.6 DM - Wn Nur 2.8 1.8 2.3 2.3 0 - 0 - v. poor strig 0 - 0 - 3.5 2.2 0 0 - lo a lg. strig, lo yield in oN Table 4. cont. Agronomic Cross Sel. No. 6771-01 Yield Marv. B/Ac. %DM Aug 22 Sep 3 Aug 22 Sep 3 11.7 18.4 10.2 10.0 14.6 16.2 9.5 10.3 9.2 13.9 12.3 21.6 21.7 21.2 23.7 22.5 20.0 20.9 23.2 20.5 23.2 22.1 260 325 195 330 345 240 295 345 225 275 220 Aug 22 11.4 270 " " " 8.4 8.7 9.2 21.7 22.8 20.9 170 21 21 21 21 22 Sep Aug Sep Sep Aug 3 22 4 4 14 el " ,, " 21 14 9.3 12.2 14.6 8.9 7.5 8.7 9.7 12.0 8.4 8.5 8.8 Fuggle Tx 19010M " -04 -05 -17 -19 -21 -23 6772-17 Sep 2 Aug 26 Aug 21 -02 -04 -14 -19 6774-02 -06 -14 6775-01 " 21 21 " 28 " 19040M -24 -25 -32 6773-01 28 19058M " II It II 19058M II 11 19062M -03 -17 -18 -19 -33 1, 6777-16 OP -18 -33 II II II ,1 " " " " " 28 14 14 14 9.7 8.9 Quality No. cones hill wt mg Diseases cone 18.4 18.5 21.3 21.3 22.0 21.8 20.7 18.3 20.2 20.7 22.0 18.7 19.3 21.2 385 235 140 220 250 245 210 265 210 220 145 265 185 190 295 Sp. L. %a %B a/B Virus 5200 4800 6100 3500 4700 7900 3800 3500 4800 5900 6600 6.9 5.2 5.6 6.0 9.0 3.1 1.8 1.8 2.2 2.8 3.1 1.8 1.9 2.9 1.2 2.4 4.1 SL1 7800 3600 2600 4600 8100 4700 4300 5800 8100 3900 4300 4600 7800 5300 5300 5200 3500 3.4 4.7 2.9 4.9 DM 0 - SL1 SL1 - Vert 0 0 0 0 Disposition - - Wn Nur Comments poor strig poor strig, cone# poor strig poor strig large strig SL1 - 0 0 0 0 0 - - - 0 - 2 - 5.3 2.4 2.2 SL1 - 2 - 8.5 7.8 6.2 7.6 3.5 3.7 4.2 4.3 3.8 2.1 2.3 0 - 0 1.9 1.4 2.0 1.6 SL1 - 0 - 0 - 0 - lo cone no. lo cone no. 0 0 - 0 - poor strig - - - 0 - 0 2 1.9 SL1 SL1 - 1 - 0 - 0 - 0 0 0 0 - - 0 - - 0 - SL1 SL2 SL1 - 2 - - - - 0 0 0 0 - 1 - - 0 - lo a Vert Vert lo a Vert, poor strig lo cone no. lo yield lo yield Vert good strig, Sp L. lo a, poor strig. lo a, poor strig. lo cone no. 8.5 5.9 3.7 4.9 7.7 4.1 6.5 1.52 1.20 7.0 5.2 5.9 4.0 4.1 5.5 4.1 3.5 2.4 3.4 2.4 - - - 3.8 4.2 5.3 1.8 1.4 2.3 2.1 3.0 2.3 0.7 1.6 2.0 2.2 1.7 1.7 0 0 - SL1 - 0 - poor s trig, shatter - Wn Nur - 1 - lo cone no. lo a, herm. lo a, herm. Vert Vert poor crown, no roo ts -98- Hop Chemistry Storage stability Evaluation of commercial varieties and developing lines: The 6-month, room-temperature storage stability trials described in the last USDA report were completed and the results are given in Table 1. Although several more lines were tested, they have since been discontinued in the program and are not reported. Table 1. Very Good L-1(2) C19110 Relative Storage Stability of Several Hop Varieties by Groups Good E-2 (3) Talisman (1) C58112 (2) C21001 Fair Alliance Fuggle (2) Idaho 40 Talisman (1) C63020 166030 (2) L-1 (1) Poor Brewers Gold (2) Bullion (2) Fuggle (1) Hallertau 161021 C56008 (1) C62013 6619-08 Very Bad Brewers Gold (1) Bullion (1) C56008 (1) C56013 (2) 6620-06 1. Storage Conditions: 6 months, dark, 72°F. in 1/2 lb. bales (11 lb./1 cu. ft.) in polyethylene bags. 2. Spectrophotometric analyses made before and after storage period on single samples. 3. Grouping was on the basis of the the storage period: Very good Good Fair Poor Very bad fraction of a-acid remaining after 90-100% 80-90 % 60-80 % 40-60 % < 40 % remaining remaining remaining remaining remaining 4. Numbers in parentheses indicate number of times (years) the variety has fallen into that group. 5. L-1 and E-2 are Clusters grown from certified rootstock provided by C. B. Skotland, WSU, Prosser. 6. Numbers preceded by C and I are experimental lines. 7. All varieties except Idaho 40 were grown at Corvallis. -99- Development of techniques for screening populations including male lines: Storage evaluations such as summarized above are satisfactory for the evaluation of commercial varieties and developing lines, but are wholly inadequate for screening large populations of female hops, and obviously unsuitable for evaluating male lines. In order to prepare for future genetic studies involving the heritability of storage stability, it will be necessary to develop a relatively simple test which will apply equally to males or females. Storage stability must be associated with some property of lupulin, and since lupulin is common to both male and female plants, we decided to work with that botanical unit. It was necessary to establish at the outset that isolated lupulin deteriorates similarly to whole cones. Lupulin was dry-sieved through 60-mesh and collected on 100 -mesh, from Brewers Gold and Yakima Cluster. Cubes from baled samples of intact cones and 50-mg. samples of isolated lupulin from each of the varieties were exposed to 60°C and analyzed periodically. The ratio A2751325 was used as the index of stability ... a low ratio indicating good storage. Results of this test (Fig. 1) showed that lupulin from Brewers Gold deteriorated more rapidly than that from Yakima Cluster and indicated that lupulin could probably be used for a "quick-test" of large numbers of both males and females. Whole 0.8- ----Lupulin Brewers Gold o Yakima Cluster 0.6- 0.2_ 0.0 I 0 I 48 24 hours at 60° C FIGURE 1. Comparison of A275/325 between whole cones and lupulin after 600 C storage. 72 -100- On the chance that a simpler test could be found, several more experiments were conducted to answer the more fundamental question of what is responsible for the difference in the stability of a and B.-acids in different varieties. These disclosed that the pellicle or "shell" of the gland is not involved; the content or type of oil associated with the variety is not responsible; that the characteristic stability of a variety is lost upon solution into a solvent and cannot be reliably regained after removal of that solvent. In short, it appears that the fundamental and biologically controlled structural status of the a and P.-acid molecules may be responsible for the array of storage-stabilities of different varieties. It is interesting to note that, while Bullion and Brewers Gold appear to have poor storage properties, some genotypes are far worse. Three from the 1968 crop were so bad that they completely deteriorated before an analysis could be made when handled in the usual routine. They were given special handling this year and will be used in additional storage studies, as well as added to our germ plasm block. Survey of existing germ plasm: A simple technique was developed for isolation of 20 to 100 mg of clean lupulin from either male or female flowers based on water flotation and screening. Using this technique, lupulin was collected from 900 to 1000 different genotypes, including both male and female (Tables in appendix). Analyses revealed that relatively few had the necessary analytical values (at least 40% a-acid or a/8 =1.5 or more) to make them suitable for commercial acceptance and, therefore, suitable for breeding material. These, however, will be further tested for storage stability and the good and poor will be used for genetic crosses at some future date. Plans: The 6-months sample-bale test of storage stability will be applied to 7 commercial lines, 10 advanced lines, 22 high analysis selections ( 10% a-acid), and approximately 36 continental types. The results, which will be available in June, will be used as a guide in advancing lines from the 1970 crop. Lupulin will be tested for storage-stability from about 200 male and female hybrid lines. A range of storage from good to poor can be expected. The best can be considered for inclusion into the breeding block and a small number of the poorest will be retained for genetic studies. In addition, many will also be tested by the r.t. bale storage method to verify validity of the lupulin method. Trial crosses for high analysis Seven test crosses involving high-analysis males and females were made in 1966. Seeds from these were planted in the field and analyses on cones from selected females* were made in 1967. The selected plants were transplanted and treated with Simazine for weed control. Chemical damage occurred in the spring of 1968 but the planting produced a relatively heavy crop that year and chemical data were again collected. The plants were left in place and measurement of yield, vigor, chemical analyses, etc. were made again in 1969. * Selection was based on visual examination of the cones for lupulin. other property of the plants was taken into consideration. No -101- Table 2. Parents involved in the crosses. Cross No. Female 6616-00 6617-00 6618-00 6619-00 6620-00 6659-00 Table 3. B.G. B.G. B.G. B.G. B.G. 63020 x x x x x x Male Abridged Pedigree of Progeny 6339-09 63013M 63023M 63025M 60013M 63025M 1/2 3/4 7/8 3/4 1/2 5/8 BG, BG, BG, BG, BG, BG, 1/4 Fu, 1/4 WA (Colo 2-1) 1/4 WA (Utah 526-4) 1/16 EKG, 1/8 Bay-S 3/16 Fu 1/2 WA (Ariz. 1-2) 3/16 Fu, 1/16 EKG, 1/16 Bav-S Analysis of parents (1965 and 1966 data) Identity Sex %a (lup.) %B (lup.) a/B %a (cone) %B (cone) Brewers Gold 63020 6339-09 63013M 63023M 63025M Fem. Fem. 46 46 23 2.0 2.4 9.1 11.4 5.6 4.8 53 15 51 47 28 30 Table 4. 3.7 1.8 1.6 Summary of selection for high analysis lines. No. seeds planted Cross No. 6616-00 6617-00 6618-00 6619-00 6620-00 6659-00 La Male Male Male Male 19 714 102 765 408 587 510 3,086 No. Nurs. plants 254 53 234 253 132 142 1,068 No. select. for "hi lup" No. Contain. 10% a (69) No. to /a advance 25 3 3 2 2 1 23 16 25 15 7 6 2 1 16 107 1 1 30 17 5 After discarding lines with disease or unfavorable agronomic characteristics. Results: The major objective of the crosses was to determine whether the a-acid content of female progeny could be improved by using males selected on the basis of the a-acid content of their lupulin. The results indicate: 1. 2. The a-acid content of the female parent can be improved, The overall rate of improvement is about 1% of the seeds planted, -102- Some males appear to be better than others, Physical evaluation for lupulin content of cones in the seedling year appears to be a satisfactory criterion for reduction of the nursery population. 3. 4. Several incidental observation's are worth noting: 1. 19 genotypes looked good in 1968 and were subjected to a 20-plant test for susceptibility to crown infection by downy mildew. Only 2 were worse than the female parent and a few were superior. 2. A few (of the 19 examined in more detail in 1968) were subjected to room temperature storage tests. Most were worse than the female parent (BG). However, one appears to be much better. 3. Second year analyses (1968) were generally much lower than either 1967 or 1969. This fact may have been the result of delayed initial growth due to chemical damage from simazine (soil sterilizer). 4. Nearly all of the 107 plants produced cones of higher density than Brewers Gold. Summary: It is probably useful to select male parents of highanalysis crosses on the basis of chemical analyses in addition to agronomic features. We can expect up to 1% of the seeds planted to result in a suitable selection for advancement from the Nursery. Since three additional requirements must be met (mildew resistance, Verticillium wilt resistance, and storage stability), there should be 10 or 20 plants to advance from the nursery. If a cross is to be expected to produce one to five commercially potential high analysis genotypes, 1000 - 2000 seeds should be planted. While physical evaluation of the seedlings appears to be suitable for selecting potentially high analysis material, explicit evaluation for yield, quality etc. should await the second year of production after the seedling year. If the parents have relatively good mildew resistance we can probably expect a fair number of the progeny to retain this feature. It may be much more difficult to retain good storage stability. Experimental investigation of the inheritance of storage stability should be undertaken to clarify the requirements of parents. Plans: Sixteen selections will be advanced from the trial into a high-quality reserve block. One will be entered into an observation block in Oregon and 8 into a similar block in Washington. Five will go into a nursery in Washington. Two will go into the germ plasm bank. The remainder will be discarded and the trial will be terminated. -103- Development of a pool of high analysis lines Plans for developing a large pool of high a-acid genotypes were begun in 1961 at which time we had only few lines over 6% (Table 5). During the interim until 1965, crosses were made by Dr. Brooks and additional information regarding potential parents was accumulated. The two years 1965 and 1966 saw a twofold increase in number of lines in our program containing more than 6% a-acid. In 1967 we increased the a-acid content required for labeling as "high-analysis" from 6% to 8% and measured a few lines with 13%,while still maintaining a pool of over 25 lines. In 1968 and 1969 the pool increased substantially and the required a-acid content was raised to 10% (Table 6). Two genotypes were noted which contained approximately 30% lupulin which is necessary for development of a variety containing 18% a-acid (a long term goal). One of these presently contains over 16% a-acid but is unsuitable for commercial development. Both are to be used in future breeding. Plans: We probably have an adequate pool of high analysis lines. The weakness of these, from a quality standpoint, will very likely appear as a deficiency in storage stability. Consequently, we feel attainment of higher concentrations of a-acid should be de-emphasized and our major effort should be development of similar lines with superior stability. Table 5. Year 1961 1964 1965 1966 1967 1969 Progress in incorporating high analysis lines into the breeding program. No. genotypes available Exptl. Named varieties varieties Min. value to qualify Max. a-acid content found 6% 10% 2 6 10 12 11 13 16 2 6 6 8 10 2 2 5 7 12 12 29 28 26 31 -104- Table 6. Updated list of high analysis lines at OSU potentially suitable for extract hops (December, 1969). Hop Analysis (.08% mc) Identification 19001 65101 65102 65103 66030 62013 (B.G.) (Ta.) (Y.C.) (E2) (Bu.) (Ore.) (Wn.) 63020 65009* 65011* 6532-14* 6616-03 6616-19 6616-23 6617-02* 6618-01* 6618-03* 6618-08* 6618-10* 6618-11* 6618-12* 6618-22* 6619-01* 6619-05* 6619-13* 6619-15* 6620-04* 6659-11* 6761-12 6761-61* 6769-05* ml. oil %a 10.9 9.8 11.3 10.3 12.3 13.3 11.6 9.8 12.8 12.2 13.0 10.4 10.4 10.4 11.4 11.9 11.2 11.6 11.5 11.3 11.0 10.9 11.7 11.7 11.1 11.2 13.3 13.6 10.4 11.9 10.8 %13 a +g 6.1 5.3 6.2 6.2 6.6 5.5 4.4 17.0 15.1 17.5 16.5 18.9 18.8 16.0 14.5 22.1 20.0 17.7 15.9 18.0 16.4 16.2 17.4 17.7 18.5 16.7 17.5 16.8 18.9 16.2 16.9 17.4 15.7 20.1 18.3 15.0 16.0 17.3 4.7 9.3 7.8 4.7 5.5 7.6 6.0 4.8 5.5 6.5 6.9 5.2 6.2 5.8 8.0 4.5 5.2 6.3 4.5 5.8 4.7 4.6 4.1 6.5 100 g. 2.5 1.5 1.2 1.0 2.2 2.8 1.1 2.0 3.9 2.3 2.6 1.8 1.9 2.4 4.4 2.7 2.5 2.2 2.1 2.4 1.8 1.7 1.9 2.5 2.6 3.6 2.7 1.7 %Tot. Ext. 21.8 18.9 21.3 20.2 23.3 24.4 19.9 19.4 27.8 24.0 21.5 19.1 %a in Ext. 50 52 53 51 53 54 58 50 50 51 60 54 48 52 53 49 51 51 55 52 53 48 58 56 52 54 55 61 Yield 1/ 2/ / B/A #a/A- Disposition 10 15 10 10 12 14 220 294 225 206 292 372 14 275 ------260 270 230 226 215 264 234 234 320 176 231 272 310 225 284 260 baby baby baby 12 21.6 19.7 21.4 24.1 22.1 22.6 20.8 21.8 20.9 22.5 20.1 20.8 21.3 20.6 24.3 22.3 18(est.)58 13 11 10 19.9 21.0 11 60 51 Other high-analysis lines and their dispositions 64100 (Bu.) 12.6 6.4 19.0 2.5 24.3 52 Bullion 6-A* 13.7 4.7 18.4 2.9 24.1 57 9 12 10 10 14 8 11 12 13 10 13 10 14 17 381 250 262 370 10 252 12 HQRB HQRB HQRB HQRB HQRB HQRB WOB HQRB HQRB, HQRB, HQRB, HQRB HQRB HQRB HQRB, HQRB HQRB, HQRB, HQRB, HQRB HQRB, HQRB, HQRB, HQRB, HQRB, HQRB, HQRB, HQRB, HQRB HQRB HQRB OOB OOB, BB OOB WOB WOB WN WN WN WOB OOB, WOB WOB WOB WOB WN OOB, WOB 13.2 6.0 19.2 2.3 24.6 54 6618-05* 11.5 5.6 17.1 2.6 21.1 55 8 183 WN (sev. DM) 6617-01* 12.9 7.8 20.7 1.9 25.8 50 5 124 GP-a 6618-06* 11.2 5.0 16.2 1.1 20.3 55 8 185 Discard-virus 6618-13* 13.9 6.2 20.1 2.1 23.8 58 8 234 Discard-virus 6618-20* 11.0 3.6 14.6 2.4 19.0 58 7 149 Discard16.3 5.2 21.5 6619-04* 1.8 24.2 67 5 160 GP-a(hermaph.) 6619-12 11.6 4.4 16.0 2.4 20.0 58 11 256 WN (sev. DM) 63030* 12.0 6.8 18.8 2.4 23.2 52 baby --BB * Indicates analysis has been verified by re-run and average is reported. 1/ Rounded to nearest bale. 2/ Calculated from actual yield per plant. 3/ HQRB = High Quality Reserve Block; OOB = Oregon Observation Block; WOB = Wash. Observation Block; WN = Wash. Nursery; GP = Germ Plasm Block; BB = Breeding Block. Bullion 10-A* r -105- "Preliminary" crosses for genetic study of alpha acid inheritance This trial was initiated for four purposes: To determine if the a-acid content (or a/0) of the lupulin of male hops is indicative of their ability to transmit high quality to the lupulin of their progeny. 1. To develop and test techniques for the isolation and evaluation of lupulin from large numbers of male and female plants of the progenies. 2. To evaluate the reciprocal-cross technique for study of inheritance of characterisitcs in hops. 3. To evaluate and refine propagation techniques necessary to evaluate genetic crosses most efficiently. 4. Results: Contribution of the male: The high female x high male (a-acid) resulted in a progeny whose lupulin averaged 45% a-acid and 26% 0-acid (a/0=1.8) as shown in Figure 2 and Table 7. Unfortunately, the male parent was much lower than the female parent. When the high female was crossed with the low male, a-acid in the lupulin of the progeny dropped slightly and 0-acid was raised, to decrease the a/0 to 1.4. The low female crossed with the high male yielded a progeny whose a and 0-acid content were similar, as in the high x low cross. (a/0 = 1.2) Using both low females and low males gave a progeny with lupulin whose a-acid content was low and whose 8-acid was high. ((1/13 = 0.6) An independent high x high cross was also evaluated. This cross (6806) employed a male with a higher a/S and the progeny contained a superior relationship of a-acid and 8-acid with a/8 = 2.3. From a practical standpoint, it would appear that our best chance of producing varieties with particular a/0would be to select both the female and male parents which were in the desired range. Isolation of lupulin: A water flotation technique based on lowspeed blending of dried inflorescences, followed by wet sieving was found to be fast, simple, economical (from the standpoint of sample size required), and fairly reproducible. Some maturity studies were made and these are being evaluated. It appears that maturity of male flowers presents no difficulties. The fractions to be collected may be of consequence, with the larger lupulin having higher quality lupulin than the smaller lupulin. The a +1 was -106- found to range from 60% to 80% of the lupulin. This may reflect either impure lupulin (debris) or variable dilution by essential oils or other chemical components of the lupulin. The method developed produced spectral curves in alkaline methanol which were normal and without evidence of deterioration of a or 8-acids. The method should require very little (if any) modification for application to future studies. Evaluation of the reciprocal-cross technique: This technique is subject to the criticism that the results apply only to the parents involved in the crosses and general statements regarding hop varieties in general are questionable. Techniques for future trials are under consideration by Dr. Haunold. Evaluation of propagation techniques: Hop seedlings grown from seed provide a means to test large progenies in the field. Seedlings with 1 or 2 true leaves can be transplanted to the field in April and produce a pound of hops on an eighteen foot vine by August. Potted seedlings are transplanted in rows, covered with black plastic, and spaced at 10 inches. Lower axillary buds are removed as they elongate to provide the plant with maximum apical dominance. Three to four weeks after planting it is possible to note and remove dwarfs and other abnormal plants in the progeny. This technique of seedling planting provides an opportunity to study large populations or progenies and to observe the growth of both normal and abnormal plants. The technique also provides a method to collect data on a large number of plants in a small area. An acre would support approximately 7,000 plants, whereas at normal spacing, the same number of plants would require 10 acres. Plans: Data from this trial will be examined thoroughly and if they are found to be sufficient, the trial may be terminated. However, if if appears a second year's data would be useful, the trial will be continued through 1970. -107- Figure 2. Distribution of a and a-acids in lupulin of progenies from several crosses. Table Data resulting in curve shown in Figure 2. 7. Hi x Hi a 30 40 50 Cross Obs. 6801 38 Fem. oo a 0 54 24 Male 41 35 45 26 Prog. range (27-56) (12-39) 60 % a or a-acid Hi x Low Cross Obs. 6802 131 %a Fem. 54 Male 10 42 Prog. range (25-53) 0 10 20 30 40 % a or 8 -acid 50 24 57 32 (18-44) 60 C) z Low x Hi 30 Cross Obs. 6803 74 %a Fem. Male 6 41 Prog. 38 range (23-54) 20 10 20 30 40 % a or 8 -acid SO 45 34 36 (26-48) -108::igure 2 cont. Table cont. Low x Low Cross 6804 a 0 10 20 30 40 50 Obs. % a Fem. 9 6 Male 10 Prog. 23 range (9-41) " %a 45 56 46 (26-62) 60 % a or a-acid Hi x Hi Cross Obs. 6806 73 Fem. %a %a SO 20 22 Male 40 Prog. 47 range (37-61) . . . .. %.t.. 20 30 40 % a or a-acid 50 60 21 (12-35) -109- Summary of selection of genotypes suitable for consideration as parents in crosses for high quality and high analysis This summary is predicated upon the concept that both high quality and high analysis are properties of lupulin. While this concept is not universally accepted, those quality factors which can be measured at present are in lupulin. Until more elusive factors can be demonstrated in the bracts, bracteoles, or strigs, our attention will be focused upon lupulin. The important known characteristics of lupulin are: 1. of anthers. Its density along the low edge of bracteoles and along furrows This density determines the yield of lupulin in the inflores- cence. 2. Its alpha-acid content which ranges from 10 to 60%. (The alpha and beta-acids usually total near 70% of lupulin and, therefore, the ratio of alpha to beta (a/0 is useful as a guide to bittering potential). 3. The cohumulone content of its alpha-acid. The highest quality hops (in the view of many brewers) are varieties having low cohumulone in their alpha-acid. Conversely, the "roughness" associated with American hops (and varieties whose pedigrees contain American background)is associated with high cohumulone by many. Experimental evidience for the contribution of cohumulone is lacking, but brewers, nevertheless, agree that they prefer the low value if a choice exists. Cohumulone content of alpha-acids exhibits a wide range (20-50%) in lupulin from both male and female hops. 4. Its storage stability. This is a factor of definite importance which exhibits a range in the lupulin of both females and males. We currently believe two protective mechanisms exist: One of a physical nature based on permeability of the cuticular layer; and the second of a chemical nature, such as a natural antioxidant contained within the lupulin. 5. Its essential oils. While their contribution to beer flavor (either positive or negative) is doubtful, neither brewers nor extractors advocate a high content of essential oils. It would, therefore, seem logical to select parents low in essential oils when possible. Lupulin from males often (possibly always) is devoid of myrcene... which constitutes some 50-80% of the oil from female lupulin. This may complicate bringing essential oils under control of plant breeders. Preparation for such a program has been underway for several years in developing techniques for isolating and analyzing lupulin. A general survey of the quality of lupulin was initiated in 1969 with the collection of approximately 1000 lupulin samples from both male and female genotypes in all phases of our program. Detailed data appear in the appendix. -110- Males Alpha-acid content: An a/f3 ratio of 1.5 was arbitrarily set as a This reduced the minimum limit for classification of "good or better". list to 102 males. Storage stability: StoTage stability was determined on these using the crushed-lupulin test. 11 (In this test, lupulin of Brewers Gold deteriorates in two hours or less, while lupulin from Yakima Cluster resists oxidation for five to six hours.) Fifty of the 102 males withstood Thus four three hours accelerated storage and 39 withstood four hours. hours (nearly as good as Yakima Cluster) were arbitrarily set as required for classification as "good or better". Growth habit of male: Notes were taken during the growing Ratings from one to five season on the "growth habit" of the male plants. were made on the multiple subjective basis of vigor, branching, and profuseness of flowers with five being the best. Quantity of lupulin: The amount of lupulin collected for anlysis was estimated for each of the better lupulin samples and this value is It may reflect a combination of the number of flowers and their recorded. lupulin density, but there is no evidence to support this possibility. Cohumulone: The cohumulone content of the best of the 39 male lines will be determined in late April or early May, 1970. Discussion of males Table 1 summarizes the "good and better" males upon which "growth habit" notes were taken. A few values are included which do not qualify as outlined above but are included because: 6616-53 DM=Intermediate, a/5 =1.5 6618-26 Lupulin Impure, a/B=high Several observations in Table 7 are of interest: A relatively wide range of germ plasm is represented, Brewers Gold pedigree occurs frequently although, itself, it is storage-unstable, 19182M has been used in many crosses in the past, 3. 4. 63015M is the male parent of several 1967 crosses that show an excessive number of abnormal plants in their progenies. I60013M, likewise, is a parent of 1967 crosses showing abnormal progeny but produced excellent, uniform plants in the 6620 cross with Brewers Gold, indicating it may not be safe to hold the males responsible for observations of their progeny from 1967 crosses. 1. 2. Crushed lupulin only demonstrates the chemical protection offered by the contents of glands and does not indicate the physical protection offered by the cuticular layer. Methods to measure this are being developed and 39 males and 35 females will be evaluated by this additional test. 5. 63015M showed storage stability in excess of Yakima Cluster and will be tested at longer times, 6. Lupulin was collected from flowers of male hops from 19 June until 19 August but all entries in Table 7 were collected in July, indicating they were neither very early nor very late. Table 8 lists the "good or better" alpha-acid males having "good or better" storage properties (again, crushed lupulin) from the 1967 and 1968 crosses. Most were seedlings and vigor, etc. notes were not taken. The data is entered here for record. Table 9 lists 10 male genotypes with varied pedigrees, each with one or more features which are exceptionally good as indicated by asterisks. These should be placed into an observation block where their analytical values and growth habits could be verified. In addition, disease data could be established. The survivors of such observations should provide reliable male parents for breeding for high-quality. Females Alpha-acid content of lupulin: had 413 greater than 1.5. One hundred and three (103) females Storage stability: The crushed lupulin test for storage stability reduced the list of high quality females to 33 which could qualify as "good or better" (Table 10). Tests on whole lupulin may alter the ranking. Discussion of females Obviously, observations on lupulin only is insufficient for complete evaluation of the potential value of a female plant. The list of 35 females with good quality lupulin with indications of good storage stability (Table IV) may be useful in locating germ plasm which may not have been recognized by the conventional methods of analysis. The high analysis lines listed elsewhere in this report must also be considered as potential germ plasm, although the approach to recognition was different, i.e., by conventional analysis, yield observations, etc. Plans 1970 crop year 1. Establish an accelerated storage test for whole-lupulin and apply it to lupulin from the best males and females. Try to clarify the contribution of contents and cuticular layer to retardation of oxidation of alpha and beta-acids, all on lupulin collected in 1969. 2. Determine the cohumulone content of the alpha-acids from lupulin of the best males and females. This may be 50-75 genotypes ... again using lupulin collected in 1969. 3. Tabulate the best males and females (based on lupulin analyses and any other available data) and encourage initiation of an intensive observation block for these with intent of establishing a nucleus for a breeding block for high analysis crosses. During their residence in this OB all types of data would be collected. -112- 4. Tabulate the best males and females (based on lupulin analyses and any other available data) and encourage initiation of an intensive observation block for these with the intent of establishing a nucleus for a breeding block for high analysis crosses. During their residence in this OB all types of data would be collected. 5. Identify and keep a few of both males and females having lupulin with poor storage properties in preparation for a possible genetic study. An attempt will be made to hold all other properties of this group at "good or better" in order to maximize the probability of producing useful new varieties as by-products of a genetic study. The five foregoing points can be initiated with data and notes collected in 1969. Plans - 1971-75 1. Verify all data from 1969 and 1970 using replicated plots from the sepecial observation block mentioned in Plans -1970. 2. Assist other members of the project in selecting genotypes for a high-analysis breeding block. 3. Continually locate and evaluate new &potentially improved genotype for this program. -113- Table 7. Summary of Superior Male Genotypes (19), 1 April 1970. I/ Identity 1/ Growth Habit 3/ % in lup. Stor- DM-a age notes Pedigree Mat. 19182M 1/213u, 3/8Bel-31 7/28 5 - 42 23 >4 I60013M Ariz.l -2(Big Springs) 7/22 3 - 46 32 3<4 63015M 3/4BG, EKG, Bav-S 7/16 4 30 54 22 >6 63016M 1/2BG, lilltah(Logan Co.) 7/16 3 - 46 29 >4 64035M Zattler-S (Wye) 7/11 3 20 57 23 >4 6616-43 11BG, Vu, 14Colo 1-2 7/03 3 20 53 16 >4 S 7/15 4 20 36 21 >4 I 7/15 5 20 46 27 >4 S 7/21 4 20 29 10 >4 -53 II It -54 6618-26 7/8BG, EKG, Bav-S Lup. a 13 -30 II 7/21 4 30 55 21 4<5 -31 tt 7/18 3 40 52 20 4<5 7/09 3 35 47 20 4<5 7/15 4 15 42 9 4 7/22 3 15 53 18 >4 7/11 3 10 40 25 >4 VS 7/07 3 30 45 27 >4 S 7/03 3 20 48 31 >4 S 7/03 3 20 53 23 >4 S 7/21 4 50 49 30 >4 VS II -37 -43 1, tt -46 6620-28 II 11-BG, IlAriz.1-2 -40 -52 -54 -62 It t, Il t, Lupulin was collected from male genotypes from 19 June through 19 August. 1/ Judgement based on vigor, branching & No. flowers; 3=fair, 4=good, 5=v.good Number of mg collected - may indicate No. flowers x lupulin density. Number of hours crushed lupulin resists oxidation; 4=good, 6-very good (Cluster=5). Downy mildew notes taken by A. Haunold, 1968. intermed. Leaf only. S=susc., I= -114-- Table 8. Male genotypes from 1967 and 1968 crosses with "good or better" alpha-acid in lupulin and "good or better" storage (15). in lupulin Identity Maturity ot 3 a/13 a+13 Storage (hours) Est. amount lupulin (mg) 6753-38 7/22 37 22 1.7 60 >4 <10 6771-25 7/22 45 17 2.6 62 >4 10 6801-06 7/31 46 21 2.2 67 >4 15 6801-20 7/31 56 24 2.4 80 >6 30 6801-35H 7/31 55 12 4.5 68 >4 <10 6801-38 8/07 47 22 2.2 69 >4 15 6801-40H 8/15 49 20 2.5 68 >4 40 6802-61H 7/25 35 23 1.6 59 >4 20 6802-103H 8/15 47 31 1.5 78 >4 30 6802-149H 7/30 49 25 2.0 74 >4 20 6803-53 8/12 51 34 1.5 85 >4 40 6803-90 8/12 46 26 1.8 73 >4 <10 6806-35H 7/31 47 22 2.2 69 >4 20 6806-45H 8/07 59 25 2.4 84 >4 20 6806-70 8/07 52 24 2.2 76 >4 15 6806-92 8/15 49 27 1.8 76 >4 60 6806-115H 7/30 50 27 1.8 77 >4 50 -115- Table 9. Male genotypes highest in certain features (asterisked). rity growth mg. lup. - Mat u- Pedigree Identify a a a/a ai-f3 42 23 1.8 65 Store 19182M 11,Bu, 3/88e1-31 7/28 5* 63015Mli 3/4BG, EKG, Bay-S 7/16 4 30 54* 22 2.5* 77 >6* 64035M Zattler-S (Wye) 7/11 3 20 57* 23 2.5* 80* >4 6616-43 118G, 1/4Fu, 4Colo1-2 7/03 3 20 53* 16 3.3* 69 >4 -44 6/23 4 <5 55* 24 2.3 79* <3 -54 7/15 5* 20 46 1.7 73 >4 27 6618-27 7/8BG, EKG, Bay-S 6/30 2 20 60* 21 2.9* 81* >4 6620-58 1/28G, liAriz.1-2 7/03 2 20 56* 25 2.2 81* >4 7/21 4 50* 49 30 1.6 78 >4 7/31 - 30 56* 24 2.4 80 >6* 8/15 ? 60* 49 1.8 76 >4 -62 6801-20 1-2-BG, 6806-92 4Su-S, 4Utah524-2 1/2Utah 526-4 148G, 1/8Fu, 1/8Colo2-1 1965 analysis: a=58, B=24, a/13 =2.5, a+8=82 27 -116- Table 10. Female genotypes with a/8 ratio over 2.0 and A275/A325 ratio less than 0.5 after 4 hours at 85° C. (crushed). Identification 19093 19120 19137 19185 19209(SL) 50024 52018 58112 60032 61020 63020 64100 65103 1/ Pedigree 9/2 8/12 8/15 9/2 Fuggle Fuggle SY(07:77) Fuggle SY(03:77) Bullion E2 It It Maturity 66030 66050 (S) 66051 SY 207 SY 219 No. Brewer 6512-24 6619-01 6761-07 6806-18 -20 -38 -42 -50 -43 -63 -67 -80 -81 -97 8/15 8/8 8/26 9/2 8/28 9/2 8/12 8/7 9/2 8/15 8/21 ft 8/25 8/19 8/19 8/26 8/26 9/12 8/19 9/2 8/12 9/12 9/17 9/10 8/26 9/12 9/10 9/10 8/26 8/26 9/10 9/16 Ji 3_,/ Yield % Lup. In Lupulin %a %8 49.5 52.9 47.6 54.8 55.4 23.3 44.3 21.9 45.7 22.8 59.7 22.0 51.8 20.7 50.5 22.4 60.0 16.6 46.4 20.4 52.9 23.0 48.2 23.0 55.7 27.1 52.7 25.8 49.8 20.9 55.2 16.9 52.3 23.0 53.7 19.3 53.3 18.0 48.7 23.0 50.7 22.0 52.5 19.9 46.0 22.9 43.9 17.8 54.9 20.7 47.1 19.3 53.9 18.3 52.6 18.8 49.3 17.8 53.4 14.6 50.6 22.7 56.7 16.1 44.9 20.8 50.4 19.4 Harvest Date (ranged from Aug. 8 to Sept. 17). 1 Calculated from % a hops. Crushed at 85° C. 21.7 17.7 21.0 26.7 Storage >4 >4 >4 >4 >4 '4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 >4 DM Notes Lab Ser.No. 9657 9423 9448 9660 9449 9391 9535 9662 9588 9665 9425 9389 9673 9461 9510 9511 9540 9500 9501 9541 9544 9845 9505 9690 9430 9876 9891 9741 9582 9880 9829 9832 9583 9584 9837 9890 -117- APPENDIX -118- Table I. FEMALE LUPULIN ANALYSIS (1969) Breeding Block and Germ Plasm Accession Number Location %a 19001 19001 19001 19001 19004 19021 19027 19028 19032 19093 19094 19105 19110 19110 19110 19110 19120 19137 19144 19151 19185 19200 19208 19209 19209 19209 19209 39:9-12 SMITH SMITH SMITH 37:5-8 54:19-20 48:19-20 49:19-20 38:19-20 41:19-20 43:19-20 35:19-20 35:1-4 SMITH SMITH SMITH 43:1-4 44:1-4 39:19-20 33:5-8 34:1-4 38:1-4 34:9-12 SMITH 35:9-12 SMITH SMITH SMITH 41:1-4 SMITH 33:9-12 51:19-20 42:19-20 33:19-20 34:19-20 53:19-20 50:19-20 45:1-4 44:19-20 52:19-20 47:19-20 40:19-20 39:1-4 36:9-12 SMITH 48.5 43.6 40.4 44.3 31.5 38.8 27.3 20.8 47.8 49.5 29.5 6.4 37.3 34.5 35.9 35.7 52.9 47.6 26.5 18.4 54.8 46.6 48.9 36.6 38.4 (B.G.) (GA3) (Light-exp.) (Unknown-S) (Verte-S x L.C.-s) (Fu x Fu-S) (E.G. x EC-s) (R.V x OP) (1/2 Fu) (1/28u) (L.G. x Fu-S) Unk. x Belg. (Light exp.) (G A exp.) (Sunshine-S) (Sunshine-S) (Saml. x 19059) (1/2 Fu) (L. C.) (GA3 exp.) (Fuggle) (Light exp.) (Fuggle) (Fuggle-S) 48209 (Fuggle-H) 48209 50024 50040 50054 50075 50091 51104 (3/4 19085M) 52013 52018 52020 53023 53037 53050 (19028 x OP) 54029 56001 56001 (Hallertau) 41.3 55.4 38.4 43.1 38.7 59.7 27.1 37.8 40.5 19.2 40.9 28.0 51.8 49.4 24.2 32.9 21.2 45.9 27.7 40.6 %13. 22.3 20.6 20.2 19.2 33.4 39.3 41.8 49.9 23.8 21.7 34.0 45.0 42.2 37.9 37.5 37.3 17.7 21.0 40.5 42.1 26.7 35.2 33.5 22.3 22.1 18.8 23.3 22.4 22.6 20.9 22.0 44.8 31.9 28.4 46.0 29.8 44.0 20.7 26.3 52.2 36.3 43.4 25.1 32.4 32.4 a/P, a +s 2.18 2.12 2.00 2.30 0.94 0.99 0.65 0.42 2.01 2.29 0.87 0.14 0.88 0.91 0.96 0.96 2.98 2.27 0.65 0.44 2.05 1.33 1.46 70.8 64.2 60.6 63.6 64.9 78.2 69.1 70.7 71.6 71.2 63.5 51.3 79.5 72.4 73.3 73.0 70.6 68.6 66.9 60.5 81.5 81.8 82.4 58.9 60.6 60.1 78.7 60.8 65.7 59.6 81.7 71.9 69.7 68.8 65.2 70.6 72.0 72.5 75.8 76.6 69.2 64.6 71.0 60.1 73.0 1.64 1.74 2.20 2.38 1.72 1.91 1.86 2.72 0.61 1.18 1.43 0.42 1.37 0.64 2.51 1.88 0.46 0.91 0.49 1.83 0.86 1.25 Ser. No. 9481 9743 9744 9745 9586 9654 9704 9655 9656 9657 9658 9757 9482 9756 9838 9755 9423 9448 9705 9659 9660 9661 9587 9750 9368 9749 9449 9747 9450 9748 9662 9483 9706 9484 9707 9629 9708 9588 9663 9709 9710 9711 9589 9369 9451 -119- Table I cont. Accession Number 56001 (Light Exp.) 56001 (G A Exp.) 56002 (Backa) 56008 56012 56013 56013 56013 (Light Exp.) 56013 (GA Exp.) 57011 58001 (WA) 58004 (WA) 58006 58112 59008 (E.C.) 60014* (WA) 60015 (WA) 60016 (WA) 60017 (WA) 60018 (WA) 60020 (WA) 60021 (WA) 60024 (WA) 60025 (WA) 60027 (WA) 60029 60032 (H) 60033 (WA) 60034 (WA) 60035 (WA) 60037 (WA) 60038 (WA) 60039 (WA) 60040 (WA) 60041 (WA) 60042 (Shinshuwase) 60043 (WA) 61008 (Poland) 61011 (Poland) 61014 (Poland) 61016 61017 (USSR) 61018 (USSR) 61019 61020 61021 (Swiss) Location SMITH SMITH 37:9-12 54:1-4 41:5-8 33:1-4 SMITH SMITH SMITH 35:5-8 53:9-12 54:9-12 52:9-12 42:1-4 38:9-12 47:1-4 48:1-4 49:1-4 50:1-4 51:1-4 52:1-4 53:1-4 46:5-8 47:5-8 48:5-8 49:5-8 50:57-58 51:5-8 52:5-8 53:5-8 46:9-12 47:9-12 48:0-12 49:9-12 50:9-12 43:5-8 46:1-4 37:27-28 38:27-28 40:27-28 41:27-28 42:27-28 43:27-28 45:19-20 46:19-20 36:5-8 %a 32.4 27.4 37.3 44.7 43.4 42.0 39.4 38.1 34.8 33.7 35.2 36.4 43.3 50.5 48.2 40.9 46.1 48.7 41.1 47.6 28.1 55.0 41.6 40.5 20.3 48.6 60.0 28.7 31.4 34.2 45.7 21.5 47.5 52.9 48.3 42.4 32.9 36.9 33.7 42.7 18.7 39.9 42.9 44.5 46.4 45.0 %(3. 25.7 33.9 45.9 27.7 32.4 32.6 27.8 28.0 28.9 37.1 38.3 41.7 32.4 22.4 33.7 40.4 40.2 32.1 35.5 23.4 38.2 22.0 28.3 28.8 37.5 27.9 16.6 39.1 27.5 30.9 33.5 38.5 32.3 31.2 32.5 33.6 40.7 38.8 32.9 27.1 15.0 37.0 34.1 27.4 20.4 34.1 *In Accession Number book 60014 is a male plant a/(3 a+B. 1.26 0.81 0.81 1.61 1.34 1.29 1.42 1.36 1.20 0.91 0.92 0.87 1.34 2.25 1.43 1.01 1.15 1.52 1.16 2.03 0.74 2.51 1.47 1.41 58.1 61.3 83.1 72.4 75.8 74.6 67.2 66.1 63.7 70.8 73.5 78.1 75.7 72.9 81.9 81.3 86.3 80.8 76.4 71.1 66.3 77.0 70.0 69.3 57.7 76.5 76.7 67.9 58.8 65.2 79.2 60.0 79.8 84.1 80.8 76.0 73.5 75.3 66.6 69.8 33.7 76.9 77.0 71.9 0.54 1.74 3.61 0.73 1.14 1.11 1.36 0.56 1.47 1.69 1.49 1.26 0.81 0.96 1.02 1.57 1.25 1.08 1.26 1.63 2.28 1.32 66.8 79.1 Ser. No. 9753 9754 9452 9485 9664 9487 9760 9758 9759 9486 9590 9591 9488 9665 9592 9666 9667 9457 9593 9594 9489 9595 9490 9453 9491 9424 9425 9454 9668 9669 9596 9455 9492 9597 9598 9670 9671 9672 9712 9456 9387 9458 9459 9388 9389 9599 -120- Table I cont. Accession Number 62013 62013 62051 62052 63001 63004 63006 (19120 x 58006M) (Density) (1/2 Ha) (1/2 BG) 6300 8 (1/2 BG) 63018 (3/4 BG) 63019 (3/4 BG) 63029 (3/4 BG) 63021 (1/2 BG) 63026 (1/2 BG) 64008 (Zattler) 64009 (Zattler) 64010 (Zattler) 64020 (Backa x 19062M) 64026 (1/2 BG) 64100 64100 (Bullion) 64100 (GA3 exp.) 64100 (Light) 64106 (Wye) 64107 (Wye) 65003 (1/2 L.C) 65008 H (1/2 Poland) 65026 (LC x OP) 65101 (Talisman) 65101 65101 (Light exp.) 65102 (Light) 65102 (YC) 65102 (GA3 exp.) 65102 (YC) 65103 (E2 Light) 65153 (E2) 65103 (E2) Location %a 37:1-4 SMITH 31:19-20 40:1-4 44:5-8 54:5-8 31:1-4 43:9-12 41:9-12 42:9-12 45:9-12 44:9-12 45:5-8 31:5-8 31:9-12 32:9-12 49:27-28 50:27-28 SMITH 40:9-12 SMITH SMITH 44:27-28 32:5-8 51:27-28 52:27-28 53:27-28 36:1-4 SMITH SMITH SMITH 34:5-8 SMITH SMITH SMITH 38:5-8 SMITH 52.9 50.0 51.3 46.5 41.4 32.7 54.4 39.4 34.8 53.1 52.9 36.6 49.6 45.4 45.7 35.9 51.4 41.1 48.2 48.2 45.4 47.0 40.9 51.0 46.3 42.0 41.9 52.8 48.3 49.5 50.0 48.0 52.5 49.7 45.9 45.7 55.7 (48.7) 65104 (L8) 65104 (Light exp.) (E21) En (Light) (L16) 66030 66050 66051 66052 66052 (Alliance) (Progress) (Pride of R.) (Normal) SMITH SMITH SMITH SMITH SMITH SMITH 35:27-28 32:19-20 32:1-4 SMITH 47.7 48.1 52.7 51.1 50.8 49.8 55.2 52.3 48.0 44.9 ot/ 23.0 20.0 19.8 29.1 33.7 39.5 24.0 32.6 30.5 27.0 23.0 39.6 36.6 32.3 30.2 37.1 21.5 36.3 21.5 23.0 22.8 20.3 30.7 19.2 28.1 29.1 35.7 27.7 25.6 25.1 25.7 33.6 27.1 29.4 30.3 32.7 27.1 (29.7) 31.1 30.7 25.8 27.3 29.8 20.9 16.9 23.0 29.2 31.1 2.31 2.50 2.59 1.60 1.23 0.83 2.26 1.21 1.14 1.97 2.30 0.92 1.35 1.41 1.51 0.97 2.39 1.13 2.24 2.10 1.99 2.32 1.33 2.65 1.65 1.44 1.17 1.90 1.89 1.97 1.95 1.43 1.93 1.69 1.52 1.40 2.06 (1.64) 1.53 1.57 2.04 1.87 1.70 2.39 3.27 2.27 1.64 1.44 a+13 75.9 70.0 71.1 75.6 75.1 72.2 78.5 72.1 65.3 80.1 75.9 76.2 86.2 77.7 76.0 73.0 72.9 77.4 69.7 71.2 68.2 67.3 71.6 70.2 74.4 71.1 77.6 80.6 73.8 74.6 75.7 81.6 79.6 79.1 76.2 78.4 82.8 (78.4) 78.7 78.9 78.5 78.4 / 80.6 70.7 72.1 75.3 77.1 76.0 Ser. No. 9493 9841 9390 9600 9601 9460 9494 9602 9495 9603 9673 9604 9605 9496 9606 9497 9761 9674 9538 9461 9539 9746 9462 9498 9675 9631 9676 9607 9839 9840 9537 9463 9536 9499 9751 9608 9510 rerun 9843 9844 9511 9752 9842 9540 9500 9501 9677 9894 -121- Table I concluded. Accession Number Location %a o6 a/B a+B 66052 (Abnormal) 66052 (Light exp.) 66053 (Ringwood SP) 66054 (Calicross) 66055 (First Ch.) 66056 (Smoothcone) 68052 Northern Brewer 21002 SMITH SMITH 36:27-28 32:27-28 33:27-28 34:27-28 31:27-28 SMITH 42:5-8 42.2 50.6 40.7 43.1 43.5 46.0 58.4 48.7 34.6 31.6 26.3 29.8 33.9 31.4 28.6 1.34 1.93 1.36 1.27 1.39 1.61 3.33 2.12 1.02 73.8 76.9 70.5 77.0 74.9 74.6 75.9 71.7 68.6 17.5 23.0 34.0 Ser. No. 9895 9896 9678 9762 9464 9679 9426 9845 9376 -122- Table II. FEMALE LUPULIN ANALYSES (1969) Nursery & Triploid Identification Lab. Ser. No. 6022-01 6028-01 6185-01 6220-03 6220-04 6220-06 6221-01 6228-01 6230-01 6305-01 6305-03 6306-04 6305-05 6512-24 6516-24 9681 9802 9680 9466 9467 9504 9630 9682 9465 9503 9683 9684 9713 9505 9685 6517-56 9686 6524-01 6527-09 6535-17 6536-05 6538-17 6735-04 6735-05 6756-26 6760-13 6760-93 6761-07 6763-13 6763-15 6769-33 6772-02 6772-05 6775-15 6777-14 9468 9687 9688 9689 9763 9692 9693 9427 9428 9429 9430 9431 9432 9433 9434 9435 9436 9437 1/ 4 Maturity 9/2 8/19 9/2 8/15 II 8/19 8/29 9/2 8/15 8/19 9/2 It 8/19 9/2 8/15 9/2 ,, 8/12 ,, t, It I, ,, ,-i (:),.0 $-4 cd = %a (1,t3, Storage CoH Remarks 40.4 48.3 29.6 37.0 36.8 35.1 30.9 41.9 32.0 44.9 44.5 42.6 50.1 50.7 42.2 32.9 26.5 39.3 37.8 40.5 41.2 41.5 29.9 43.6 Ariz1-4 x Ariz1-1M NM2-2 x 58010 M 28.3 28.0 19209 x 19173M 44.1 31.6 46.6 37.9 16.6 32.7 23.9 26.3 47.8 35.4 21.6 23.9 28.5 28.0 22.9 41.0 24.3 28.5 23.1 25.3 28.6 22.0 32.1 45.7 23.0 31.0 51.0 49.6 46.2 46.3 46.0 31.2 48.1 42.7 47.0 43.4 38.4 47.1 37.2 24.4 22.0 22.4 19120 x 58006M 19209 x Colo2-1M >4 3<4 4 <3 64100 x 19060M 56001 x(cross 60028) 53-6 M 3/ 56001 x(cross 59037) 57-50 M 3/ SA 101-1,2 x 19058M 60007 x 19173 M 63021 x OP 63008 x OP ? (37 crosses in '65) Ti x 19040 M T2 x Fu 1-1 II >4 12 x Fu 2-4 T3 x Fu 1-1 II 4 T4 x Fu 1-1 T4 x 19040 M T4 x 19062 T4 x OP Accelerated storage test on crushed lupulin at 85° C. Value represents number of hours before rapid deterioration began (BG=1.5 and YC=4 5). This represents chemical protection mechanism only. CoH = cohumulone content of alpha-acids. on varieties with best storage. Determinations will be made 56-6 M and 57-50 M were nursery row numbers and plant numbers within the row. -123- Table III. FEMALE LUPULIN ANALYSES (1969) 1968 crosses for a, and 6806 for high a Ser. No. a S a/f3 a+13 42.5 39.3 51.7 29.9 44.1 38.9 46.3 50.8 33.6 38.8 47.9 52.2 44.2 40.3 49.7 39.5 45.8 29.4 52.9 47.9 35.8 46.5 26.7 46.9 43.8 42.0 51.6 42.9 55.9 29.6 28.9 20.3 38.7 27.7 26.3 27.7 20.9 30.6 23.4 24.2 24.5 34.0 28.9 22.3 23.5 25.9 47.7 19.0 27.1 31.9 20.8 37.8 21.8 24.3 1.44 1.36 2.54 0.77 1.59 1.48 1.67 2.44 1.10 1.66 1.98 2.13 1.30 1.39 2.23 1.68 1.77 0.62 2.78 1.76 1.12 2.23 0.71 2.16 1.80 1.40 2.54 1.23 2.61 72.1 68.2 72.0 68.6 71.8 65.3 73.9 71.6 64.2 62.1 72.1 76.7 78.2 69.2 72.0 63.0 71.7 77.1 71.9 75.1 67.7 67.3 64.4 68.7 68.1 72.1 71.9 77.8 77.3 9632 9633 9794 9886 9795 9796 9555 9798 9799 9800 9846 9801 9556 9512 9802 9803 9815 9609 9715 9816 9848 9714 9764 9804 9716 9849 9634 9850 9635 -26H -27 46.3 44.2 37.7 37.1 31.1 34.4 31.3 34.1 31.8 40.9 30.9 39.8 22.8 33.0 34.0 0.99 1.02 -05 -06H -12H -13 -15 -18 -20 -24H -25 37.5 37.7 47.3 35.8 39.9 43.9 34.8 34.2 49.1 39.2 48.4 75.2 74.7 78.3 70.2 71.2 78.0 66.6 75.1 80.0 79.0 71.2 79.3 78.2 9717 9718 9610 9616 9557 9612 9817 9851 9613 9614 9636 9615 9556 Identification 6801-01 -02 -03 -05 -08 -09H -13 -17H -21 -22 -24 -25 -27 -28 -30 -31 -32 -39 -42 -43 -46 -47 -50 -52 -54 -55 -57 -58 -60 6802-03 -04H 30.1 20.3 34.9 21.4 1.52 1.04 1.28 1.29 1.09 0.84 1.59 0.98 2.13 1.40 1.30 -124- Table III cont. Identification 6802-28 -29 -32 -33 -34 -35 -36 -39H -41 -42 -43 -44 -45 -48 -49 -54H -58 -59 -60 -62 -64 -65 -66H -67 -68 -71 -73 -74 -75 -76 -77 -82 -83 -85 -86 -87 -88 -89 -91 -92 -94 -95 -96 -97 -98 a 41.8 46.6 38.9 356 45.8 45.4 44.0 38.9 48.5 41.3 42.1 48.1 45.2 47.3 45.0 49.5 34.6 38.0 49.8 44.1 43.2 46.5 46.0 46.2 46.9 45.5 46.9 49.3 33.4 42.1 42.4 46.8 42.2 38.9 47.8 45.9 44.6 46.8 46.2 41.9 47.3 42.7 44.7 52.8 48.5 R 26.2 31.2 39.3 29.4 25.3 32.9 25.2 35.2 28.6 31.0 34.9 32.5 31.6 26.6 24.8 30.1 41.1 35.5 28.1 34.4 32.9 27.6 35.1 30.4 32.0 32.6 32.1 28.0 41.7 30.5 34.8 24.4 32.6 31.8 31.8 27.1 32.1 17.7 20.7 30.5 31.1 30.6 25.8 22.8 27.6 a/ 1.59 1.49 0.98 1.21 1.81 1.38 1.75 1.11 1.69 1.33 1.21 1.48 1.43 1.78 1.82 1.65 0.84 1.07 1.77 1.28 1.31 1.68 1.31 1.52 1.46 1.39 1.46 1.76 0.80 1.38 1.22 1.91 1.29 1.23 1.50 1.69 1.39 2.65 2.23 1.37 1.52 1.40 1.73 2.31 1.75 a+R 68.0 77.8 77.7 65.0 71.0 78.2 69.2 74.2 77.1 72.3 76.9 80.6 76.8 74.0 69.8 79.6 75.6 73.4 77.9 78.5 76.1 74.1 81.1 76.7 78.9 78.1 79.0 77.3 75.1 72.6 77.2 71.2 74.8 70.7 79.7 72.9 76.7 64.5 66.9 72.3 78.4 73.3 70.5 75.6 76.1 Ser. No. 9513 9514 9852 9516 9517 9637 9827 9616 9558 9818 9617 9719 9518 9765 9805 9618 9619 9720 9853 9579 9520 9521 9522 9638 9559 9523 9620 9524 9854 9525 9526 9527 9528 9639 9640 9806 9807 9766 9641 9855 9721 9642 9819 9722 9856 -125- Table III cont. Identification 6802-99 -100 -102 -104H -105 -106 -107 -108 -109 -110 -111 -112 -115 -116 -118 -119 -120 -122 -123 -125H -126H -127 -129 -131 -132 -133 -134 -137 -138 -139 -140 -142 -144 -146 -148 -150 -151 -152 -153 -154 -156 -157 -162H -163 -164 -166 -167 a 39.6 47.7 39.8 41.8 40.5 31.3 44.5 46.6 41.5 31.3 41.8 42.9 36.0 44.6 44.2 37.5 41.2 37.8 38.7 42.9 40.7 46.6 46.3 44.3 45.9 37.7 40.0 46.1 47.4 31.1 43.4 47.6 40.5 39.7 50.0 36.6 38.4 49.6 48.1 44.8 38.4 36.7 40.0 43.0 39.0 49.3 41.5 S 38.1 27.1 30.8 31.6 30.6 30.1 35.0 31.9 37.0 41.2 35.5 32.8 35.5 28.7 34.6 37.8 21.7 28.7 34.2 30.2 38.4 29.3 26.1 30.5 30.8 32.3 30.2 26.2 27.7 44.1 28.0 30.4 33.3 33.5 19.4 25.2 35.4 26.6 29.2 34.3 36.6 36.9 26.9 31.9 31.2 30.9 35.9 a/(3 a+13 1.04 1.76 1.30 1.32 1.32 1.04 1.27 1.46 1.12 0.76 1.18 1.31 1.01 1.56 1.28 0.99 1.90 1.32 1.13 1.42 1.06 1.59 1.78 1.45 1.49 1.17 1.32 1.76 1.71 0.70 1.55 1.56 1.22 1.18 2.58 1.46 1.08 1.87 1.64 1.31 1.05 0.99 1.49 1.35 1.25 1.60 1.16 77.7 74.9 70.7 73.4 71.1 61.4 79.5 78.4 78.5 72.5 77.2 75.7 71.5 73.3 78.8 75.3 62.9 66.5 72.9 73.1 79.1 76.0 72.4 74.8 76.7 69.9 70.1 72.3 75.1 75.2 71.4 78.0 73.7 73.2 69.4 61.8 73.8 76.2 77.3 79.1 75.0 73.6 67.0 74.9 70.2 80.2 77.3 Ser. No. 9723 9724 9643 9644 9621 9808 9645 9622 9560 9646 9857 9647 9561 9858 9767 9820 9859 9860 9725 9529 9530 9821 9768 9726 9861 9822 9727 9809 9823 9824 9810 9562 9623 9563 9811 9728 9812 9813 9729 9730 9862 9825 9532 9649 9814 9564 9560 -126- Table III cont. Identification 6803-01 -02 -05 -06 -07 -08H -10 -11 -14 -15H -16 -18 -22 -23 -24 -25 -26 -27 -28 -30 -32 -33 -34 -36 -38 -39 -41 -42 -43 -45 -46 -49 -50 -54 -59 -62 -63 -64 -65H -68 -69 -70 -71 -73 -74 a 34.1 32.1 32.8 33.6 27.8 41.1 39.2 48.6 37.3 36.0 31.0 41.2 36.1 31.5 34.5 37.8 33.6 34.4 33.6 28.5 40.2 35.5 22.7 29.8 42.8 39.9 41.2 39.4 35.0 40.5 48.9 42.8 35.4 47.2 46.2 43.2 42.4 36.6 41.2 36.8 35.1 30.4 33.9 35.1 40.0 R 36.7 43.0 32.5 38.4 32.1 28.6 32.4 29.0 33.6 34.5 32.1 31.1 33.6 44.0 37.8 31.3 38.0 40.1 39.2 41.1 37.5 46.6 48.2 40.0 26.8 28.6 33.3 33.1 39.2 32.6 26.6 24.6 32.1 29.2 29.4 28.1 29.4 36.0 33.5 34.5 33.7 41.1 34.0 35.0 32.4 a/R a+(i 0.93 0.75 70.8 75.1 65.4 72.0 59.8 69.7 71.6 77.5 70.9 70.5 63.2 72.3 69.7 75.5 72.4 69.1 71.6 74.4 72.8 69.6 77.8 82.1 70.8 69.8 69.7 68.5 74.5 72.5 74.2 73.0 75.5 67.4 67.5 76.4 75.6 71.3 71.8 72.6 74.7 71.3 68.8 71.5 67.9 70.2 72.5 1.01 0.87 0.87 1.44 1.21 1.68 1.11 1.04 0.97 1.32 1.08 0.72 0.91 1.21 0.88 0.86 0.86 0.69 1.07 0.76 0.47 0.75 1.60 1.39 1.24 1.19 0.89 1.24 1.84 1.74 1.10 1.62 1.57 1.54 1.44 1.02 1.23 1.07 1.04 0.74 1.00 1.00 1.23 Ser. No. 9565 9566 9696 9769 9697 9698 9731 9863 9770 9864 9699 9771 9700 9732 9865 9567 9866 9651 9568 9733 9772 9867 9860 9773 9734 9533 9569 9735 9869 9736 9570 9870 9737 9571 9572 9534 9774 9871 9573 9574 9575 9576 9694 - 9739 -127- Table III cont. Identification 6803-75 -78 -79 -84 -89 6804-01 -03 -04 -05 -06 -08 -09 -11 -13 6806-01 -03 -05 -08 -09 -12 -13 -15 -17H -18 -20 -22 -23 -25 -26 -30 -32H -37 -38 -39 -40 -42 -43 -45H -47 -48 -50 -51 -52 -53 -56 Ser. No. a/I3 a+13 44.1 38.6 36.9 33.9 46.9 0.74 0.90 1.06 1.09 0.72 76.9 73.3 75.9 71.0 80.5 9577 9578 9701 9775 9702 30.2 27.7 26.2 20.7 24.4 13.7 8.9 18.5 40.7 40.7 49.7 48.1 59.3 61.9 50.5 28.4 0.74 0.87 0.56 0.42 0.51 0.23 0.14 0.37 1.43 70.8 59.4 72.9 70.4 72.5 73.7 70.7 69.0 69.1 9703 9872 9579 9887 9652 9888 9740 9873 9624 49.7 47.9 37.7 51.7 48.2 49.4 44.9 51.0 47.0 43.9 54.9 46.4 45.5 43.3 49.3 41.5 54.9 55.4 47.1 48.4 53.7 53.9 49.3 52.7 43.4 48.1 52.6 37.8 51.7 46.6 41.2 18.7 23.8 28.8 20.6 17.9 23.0 24.6 12.6 20.2 17.8 20.7 19.6 18.0 24.7 19.4 30.2 21.5 16.5 19.3 17.4 18.2 18.3 17.8 24.2 18.2 19.1 18.8 18.3 13.4 24.2 23.4 2.65 2.01 1.31 2.51 2.69 2.15 1.82 4.04 2.32 2.47 2.65 2.37 2.53 1.76 2.55 1.37 2.56 3.35 2.45 2.78 2.95 2.95 2.77 2.18 2.39 2.52 2.80 2.07 3.84 1.92 1.76 68.4 71.7 66.5 72.3 9776 9874 9777 9875 9778 9580 9779 9581 9780 9876 9891 9826 9781 9782 9783 9784 9515 9877 9741 9828 9889 9582 9829 9625 9878 9879 9880 9881 9882 9883 9830 32.8 34.8 39.0 37.1 33.6 31.7 46.7 66.1 72.3 69.6 63.7 67.2 61.7 75.6 65.9 63.5 68.0 68.6 71.8 76.3 71.9 66.4 65.8 71.8 72.2 67.2 76.9 61.6 67.2 71.3 56.0 65.1 70.8 64.7 -128- Table III cont. Identification 6806-57 -59 -63 -66 -67 -68 -71 -73 -75 -77 -78 -80 -81 -82 -83 -84 -86 -88 -90 -94 -96 -97 -98 -99 -103 -106 -108 -112 43.1 46.3 53.4 36.8 50.6 44.0 39.6 48.8 51.6 45.5 48.4 56.7 44.9 45.6 41.5 50.0 48.6 49.7 41.1 50.7 45.6 50.4 49.0 53.1 44.4 61.0 38.7 47.2 21.8 28.3 14.6 21.6 22.7 21.4 15.0 21.9 23.3 27.2 21.3 16.1 20.8 24.4 25.9 18.8 21.8 17.0 21.5 20.0 25.1 19.4 17.2 18.2 19.3 11.9 32.6 23.2 a/13 a+13, 1.98 1.64 3.66 1.70 2.23 2.06 2.64 2.22 2.21 1.67 2.27 3.52 2.16 1.87 1.60 2.66 2.23 2.92 1.91 2.53 1.82 2.60 2.84 2.91 2.30 5.15 1.19 2.03 65.0 74.6 68.0 58.4 73.3 65.4 54.5 70.7 74.9 72.7 69.7 72.8 65.7 70.0 67.4 68.8 70.4 66.7 62.5 70.7 70.7 69.9 66.2 71.3 63.7 72.9 71.2 70.4 Ser. No. 9831 9626 9832 9833 9583 9884 9834 9835 9627 9836 9892 9584 9837 9785 9885 9786 9628 9787 9788 9742 9695 9890 9893 9584 9789 9790 9791 9792 -129- Table IV. FEMALE LUPULIN ANALYSIS (1969) Segregation for yield %a %3 07:77 44.3 03:69 Ser No. a/13 a+3 21.9 2.02 66.3 9391 (8/8) 33.9 27.6 1.23 61.5 9392 (8/8) 14:66b 14:68a 15:70b 16:68a 16:70b 16:72a 17:68a 15:74b 30.8 25.4 29.9 30.8 51.1 32.8 45.3 0.79 0.68 1.08 0.89 1.82 1.00 1.93 0.91 69.8 26.6 57.6 65.2 33.6 38.9 37.2 27.7 34.4 28.1 32.8 23.5 36.9 9343 9394 9395 9396 9397 9398 9399 9417 (8/8) (8/8) (8/8) (8/8) (8/8) (8/8) (8/8) (8/11) 13:90b 13:92a 14:86b 14:90b 53:7 38.6 49.0 53.3 19.3 23.1 18.4 18.0 2.78 1.67 2.66 2.97 73.0 61.7 67.5 71.3 9541 9542 9543 9544 (8/26) (8/26) (8/26) (8/26) 04:80a 04:84a 43.3 40.8 28.4 1.52 39.5 1.03 71.7 80.2 9400 (8/8) 9545 (8/26) 43.2 38.5 38.7 38.8 34.4 47.0 45.3 0.52 0.94 0.85 0.81 0.94 0.62 0.57 65.7 74.6 11:94b 12:90b 9:92a 9:94b 12:92a 22.5 36.1 32.8 30.8 32.2 29.1 25.9 76.2 71.2 9402 9401 9403 9405 9418 9419 9420 (8/8) (8/8) (8/8) (8/8) (8/11) (8/11) (8/11 Hallertau x 110-S(19173) 04:92a 521 97:86b 550 06:94b 548 03:86b 502 04:88a 516 38.6 40.7 26.7 31.5 45.5 38.0 33.6 33.9 31.6 26.6 1.02 1.21 0.79 1.00 1.71 76.7 74.3 60.6 63.2 72.1 9406 9407 9421 9546 9547 (8/8) (8/8) (8/11) (8/26) (8/26) Hallertau x 119-1(19058) 03:66b 602 04:68a 616 32.0 33.2 34.1 29.4 0.94 1.13 66.1 62.6 9409 (8/8) 9409 (8/8) Identification Location Fuggle Hallertau 10-S (19105) Fuggle x 106-S(19170) 114 116 131 140 143 145 152 136 79.2 65.6 68.8 70.5 Fuggle x 110-S(19173) 207 209 214 219 Fuggle x 119-1(19058) 318 323 Hallertau x 106-S(19170 08:94b 412 09:866 414 448 445 421 424 457 71.5 68.8 66.6 -130- Table IV cont. Identification Location 619 631 660 04:70b 05:70b 07:74b %a %8 31.7 48.8 37.3 Ser No. a/13 a+13 28.0 19.0 34.5 1.13 2.57 1.08 59.7 67.8 31.1 18.4 11.6 36.5 40.4 51.3 62.4 71.5 69.7 74.0 77.6 9548 (8/26) 9549 (8/26 9550 (8/26) 41.1 0.77 0.36 0.19 0.89 15.0 38.8 21.4 46.6 37.3 50.5 0.32 1.04 0.42 61.5 76.2 71.9 9552 (8/26) 9553 (8/26) 9554 (8/26) 31.2 33.1 20.3 17.6 21.2 35.7 36.8 50.3 49.8 59.4 0.87 0.90 0.40 0.35 0.36 66.9 69.9 70.6 67.4 9413 9414 9415 9416 9422 71.9 9410 (8/8) 9411 (8/8) 9412 (8/8) 10-S (19105 x 119-1 (19058) 712 719 743 745 08.74b 09:70b 11:70b 11:72a 9551 (8/26) 10-S (19105) x 110-S (19173) 804 806 840 10 -S 906 911 954 959 952 08:78b 08:80a 11:78b (19105) x 106 -S (19170) 13:80a 13:84a 17:80a 17:84a 17:78b 80.5 (8/8) (8/8) (8/8) (8/8) (8/11) -131 Table V. MALE LUPULIN ANALYSIS (1969) Breeding Block and Germ Plasm Identification 19005 19006 19007 19008 19009 19010 19036 19037 19039 19040 19041 19043 19044 19046 19047 19048 19050 19051 19054 19058 19060 19061 19062 19085 19170 19172 19173 19182 19183 51060 51061 51101 51114 52040 52042 52044 52045 52046 52047 52048 Location 33:13-14 34:15-16 44:13-14 rerun 40:15-16 45:15-16 48:15-16 54:13-14 36:15-16 38:15-16 39:15-16 47:13-14 48:13-14 49:13-14 50:13-14 rerun 51:13-14 52:13-14 38:13-14 40:13-14 43:13-14 34:13-14 rerun 35:13-14 37:13-14 36:13-14 39:13-14 54:15-16 rerun 33:17-18 34:17-18 35:17-18 36:17-18 42:13-14 41:13-14 46:13-14 45:13-14 42:15-16 43:15-16 46:15-16 47:15-16 33:15-16 rerun 35:15-16 37:15-16 Over-a111/ rating %a 9.7 16.2 15.3 17.4 40.5 18.7 29.8 12.9 23.1 35.2 38.8 30.8 20.1 41.9 11.8 4 3 3 3 4 4 3 4 3 4 4 3 3 5 3-4 3-4 5 5 4 5 4 4 4 3 1 4 4 5 2 4 4 3 3 4 3 3 3 2 3 3 5.3 37.8 45.0 19.8 17.9 40.8 10.8 33.4 32.6 11.9 37.5 28.9 29.8 36.4 32.0 23.9 42.5 38.4 9.3 34.3 16.6 17.9 23.3 22.3 22.2 18.6 22.4 27.6 35.2 14.1 %13 56.7 52.4 36.1 31.3 23.1 52.1 28.0 64.4 50.0 24.3 29.7 51.9 29.6 32.0 59.6 64.7 33.1 30.3 57.3 59.0 30.5 29.0 49.3 45.2 60.6 35.9 53.4 46.2 39.9 26.9 46.0 23.3 32.9 60.7 45.8 44.8 50.5 50.7 27.2 41.3 28.9 48.0 47.1 34.2 39.2 a/6 a443 Ser. No. 0.17 0.31 0.42 0.56 66.3 68.6 51.4 48.7 63.6 70.8 57.8 77.3 9262 9180 9084 9161 9112 9113 9181 (9263) 9264 9246 9132 9232 (9314) 9207 9233 9114 9234 9265 9235 9115 9162 9163 9266 9182 9315 9116 9183 9184 9164 9048 9075 1.75 0.36 1.06 0.20 0.46 1.45 1.30 0.59 0.68 1.31 0.20 0.08 1.14 1.48 0.35 0.30 1.34 0.37 0.68 0.72 0.20 1.05 0.54 0.65 0.91 1.19 0.57 1.82 1.17 0.15 0.75 0.37 0.35 0.46 0.82 0.54 0.64 0.57 0.59 1.03 0.36 73.1 59.5 68.5 82.7 49.7 73.0 71.4 69.9 70.9 75.3 77.2 76.9 71.3 39.8 82.7 77.8 72.5 73.4 82.4 76.0 76.3 58.9 69.9 65.7 71.2 70.0 80.1 61.4 68.4 74.0 49.5 63.4 47.5 73.3 74.7 69.4 53.3 9133 9134 9316 9032 9236 9237 9317 9117 9238 9208 (9318) 9209 9210 9033 9097 9135 9136 -132- Table V cont. Identification 54066 58111 60013 60019 60023 60026 60028 60030 60031 63011 63012 63013 63014 63015 63016 63017 63033 63034 64027 64028 64029 64030 64031 64032 64033 64034 64035 64036 64037 64101 64102 64103 64104 64105 65034 65035 65036 65037 Prosser 5 Prosser 6 Prosser 7 6321-01 (SY 712) Location Over-all1/ rating 41:15-16 53:13-14 38:17-18 39:17-18 40:17-18 41:17-18 42:17-18 43:17-18 not collected 37:17-18 45:17-18 46:17-18 47:17-18 48:17-18 49:17-18 50:17-18 42:25-26 43:25-26 37:25-26 38:25-26 39:25-26 40:25-26 41:25-26 44:25-26 45:25-26 46:25-26 47:25-26 48:25-26 49:25-26 53:15-16 49:15-16 52:15-16 51:15-16 50:15-16 33:25-26 34:25-26 35:25-26 36:25-26 37:23-24 38:23-24 39:23-24 3 4 3 2 2 2 1 3 4 3 3 2 4 3 2 4 3 2 3 2 2 2 2 1 %a 41.5 28.2 45.6 39.8 30.6 41.7 43.6 30.8 31.1 49.2 32.0 28.9 45.8 31.1 37.4 34.7 16.6 54.5 40.6 63.0 53.6 50.9 46.5 46.6 46.0 55.2 50.8 47.3 47.4 49.6 29.3 37.3 42.8 24.5 33.8 17.1 22.0 23.3 28.6 33.9 28.4 27.9 25.3 30.9 33.8 29.9 44.9 30.3 a/P, a+R Ser. No. 1.33 0.57 1.43 1.38 0.67 72.6 77.4 77.5 81.1 65.5 9137 9211 9267 9138 9319 9139 9034 9140 59.4 9141 78.9 74.4 80.1 75.6 74.2 75.1 80.5 74.9 83.2 76.1 78.2 81.2 79.6 74.2 90 85 1.31 1.17 0.88 0.39 2.23 1.20 3.68 2.44 2.18 1.63 1.38 1.62 1.98 2.01 1.53 1.40 1.66 0.71 1.23 60.7 76.4 73.4 67.6 9147 9268 92 39 9240 9049 9212 9269 9320 9165 9185 9186 92 70 9086 9321 1 3 3 56.8 49.3 1 32.6 3 3 47.7 49.3 47.1 42.7 37.7 18.3 50.4 29.0 45.6 17.9 27.5 29.2 40:23-24 2 41:23-24 1 3 3 3 2 3 1 4 3 3 23.5 25.6 23.4 23.0 31.0 38.1 42.3 2.42 1.93 1.39 2.07 1.59 1.24 2.49 1.16 0.64 1.73 0.70 1.62 0.40 0.71 0.69 80.2 85.2 59.8 70.3 46.8 79.4 70.5 73.7 62.3 66.1 71.5 22.1 52.0 0.43 74.2 9290 13.4 35.1 0.38 48.5 9250 17.1 32.6 28.5 29.1 41.5 28.1 44.5 38.6 80.3 74.9 56.1 70.7 9148 9241 9213 9060 9061 9045 9046 9088 9118 (9218) 9322 90 76 9272 92 80 90 74 9202 6322-01 (SY 812) 1/ Over-all ratings were made by CEZ and STL on the basis of vigor, branching, freedom from disease symptoms, etc. 1=poor, 5=very good. -133- Table VI. MALE LUPULIN ANALYSES (1969) Nursery & Triploid Identification 6321-01 6322-01 6611-02 -02 -02 -07 6622-01 -02 -04 -04 -07 -08 -08 -22 -23 6623-01 -06 6626-02 6628-02 -02 6629-03 -03 6635-09 -10 -24 -36 -36 6645-01 -03 -05 6648-01 6649-02 -04 -06 6650-01 -02 -07 -09 -11 -12 6669-02 -02 -02 -05 Ser. No. 9290 9250 9151 9082 9083 9152 9193 9194 9245 9332 9044 9333 9260 9077 9078 9261 9195 9246 9173 9301 9174 9104 9149 9150 9095 9045 9073 9096 9197 9198 9196 9125 9046 9079 9023 9158 9080 9159 9024 9025 9176 9177 9178 9081 Collection Date 7/21 7/16 7/10 7/3 7/3 7/11 7/15 7/15 7/18 7/29 6/23 7/29 7/21 7/1 7/1 7/21 7/15 7/18 7/15 7/23 7/14 7/7 7/11 7/11 7/3 6/24 7/1 7/3 7/15 7/15 7/15 7/15 6/24 7/1 6/20 7/11 7/3 7/11 6/20 6/20 7/14 7/14 7/14 7/1 %a 22.1 13.4 8.0 11.8 15.7 23.5 22.5 38.1 32.2 39.5 13.0 47.1 46.9 36.6 28.4 31.3 39.3 38.5 18.5 %13 52.0 35.1 49.6 43.7 55.1 33.6 43.8 26.5 40.4 38.0 65.4 25.1 25.4 43.2 52.5 35.1 29.6 40.8 50.5 Storage Remarks 19105 x 19058M 19208 x OP 64100 x 19043M <3 <3 64100 x 19043M 64100 x 19037M 19038 x 51101M 19038 x 54066M see #9104 46.3 25.1 35.5 28.1 39.0 CoH 19038 x OP 39.1 34.6 37.2 59008 x OP 39.9 49.9 31.7 45.3 29.1 15.0 24.0 41.6 43.0 44.9 42.3 29,1 39.2 37.7 51.4 56.1 59.6 42.9 39.5 32.9 37.4 29.0 40.6 <3 3 47.8 52.2 33.2 32.8 15.0 >4 34.2 30.0 40.4 36.5 24.0 19.9 4 22.7 21.3 <3 19164 x OP 19164 x OP 19200 x 19043M 19200 x 19037M 19200 x 54066M -134- Table VI cont. Identification 6669-05 -06 -09 -17 -18 -19 -29 -30 -30 6735-02 6753-10 -28 -32 -38 6756-26 Ser. No. Collection Date 9012 9199 9013 9160 9047 9200 9282 9103 9026 9284 9110 9179 9111 9285 9121 7/15 7/22 7/7 6/20 7/22 7/7 7/14 7/7 7/22 7/7 9122 9123 9124 9283 9126 9337 9281 9125 9286 9127 9128 9287 9129 9288 9130 7/8 7/8 7/8 7/22 7/8 7/29 7/22 7/7 7/22 7/8 7/8 7/22 7/8 7/22 7/8 6/18 7/14 6/19 7/10 6/23 -26 6760-13 -93 6761-07 6763-06 -13 -15 6769-12 -33 6771-25 6772-02 -05 -19 6775-05 6777-07 -14 Storage 54.7 23.2 50.3 39.5 44.7 29.1 47.6 33.0 33.1 33.4 42.4 35.6 36.5 37.4 32.7 34.3 22.3 27.7 28.5 36.1 30.8 46.6 30.6 39.9 44.6 47.3 35.0 30.2 42.0 45.5 46.8 24.9 34.0 30.0 24.7 35.2 30.1 19.9 34.3 36.7 18.5 21.9 31.0 25.7 22.1 24.6 23.3 24.4 22.7 23.5 26.7 41.1 27.9 23.1 24.9 17.4 24.4 27.3 24.0 33.8 21.3 20.7 CoH Remarks 66030 x OP <3 <3 66030 x OP 4 <3 used up Ti x Fu 1-1 >4 Ti x 19040M T2 x Fu 1-1 T2 x Fu 2-4 T3 x Fu 1-1 4 14 x Fu 1-1 >4 <3 T 4 x 19040M T4 x 19062 3 <3 T4 x OP -135- Table VII. MALE LUPULIN ANALYSES (1969) 1968 crosses for a/(3 and 6806 for high a Identification 6801-06 -15 -20 -26 -35H -36 -38 -40 -49 6802-04H -06H -08H -17H -31H -37H -40H -46H -57 -61H -66H -69 -72 -78H -84H rerun -103H -114H -124 -125H -126H -136 -143 -149H -158 -165H 6803-03 -08H -09 -12 -20 -21 -29 %a %a a/a a+13 46.5 42.6 56.4 44.3 55.5 47.8 47.3 48.9 54.3 20.9 24.9 23.6 35.4 2.23 67.3 67.5 80.0 12.2 4.54 2.04 2.17 2.50 2.16 47.0 32.7 39.4 34.8 37.2 34.7 37.7 33.8 36.2 37.0 31.5 35.6 23.0 34.2 35.3 36.2 39.1 29.8 29.5 32.4 30.0 35.4 38.3 31.6 35.3 32.3 35.7 25.0 29.0 37.6 39.9 45.8 45.5 26.0 35.2 31.3 35.7 48.9 35.4 41.6 39.5 28.6 28.1 46.6 47.3 41.3 27.5 39.5 46.5 34.1 25.3 48.7 23.4 37.9 41.5 48.0 50.2 35.2 42.5 38.5 41.1 23.5 21.8 19.6 25.2 38.4 32.7 32.0 42.4 42.7 41.3 41.1 1.71 2.39 1.25 79.6 67.7 71.3 69.1 68.4 79.5 Ser. No. 9350 9351 9352 9353 9354 9475 9377 9469 9476 1.55 1.43 1.00 1.15 1.01 0.96 0.95 1.44 1.58 1.17 0.72 1.25 1.32 1.05 0.71 1.95 0.81 1.01 81.8 69.9 74.1 77.6 79.5 81.7 63.0 66.7 66.9 58.7 83.2 70.7 77.8 78.5 58.4 57.6 79.0 77.3 76.6 65.9 71.2 81.8 66.4 61.0 73.8 52.4 75.4 9378 9340 9379 9356 9380 9370 9302 9303 9323 9324 9381 9506 9507 9477 9325 1.08 1.47 1.57 0.83 1.00 0.93 1.00 79.9 80.7 82.2 77.6 85.2 79.8 85.2 9374 9355 9342 9442 9358 9443 9438 1.35 0.88 1.13 1.06 1.35 1.25 0.70 1.12 0.88 9440 9470 9478 9304 9371 9372 9441 9236 9341 9373 9357 -136- Table VII cont. Identification 6803-31 -35 -37 -40 -47 -48 -51 -53 -55 -60 -67 -77 -81 -85 -88H -90 -92 6806-07 -16 -19 -21 -24 -32H -33 -35H -36 -45H -70 -92 -115H -118 -119 %a 30.1 41.7 35.6 33.6 40.1 36.4 5.4 51.3 43.6 42.0 54.4 41.5 45.5 39.1 51.1 46.4 45.7 45.5 31.1 31.0 44.0 38.1 26.4 56.4 33.6 37.1 36.1 33.5 41.1 35.4 35.6 29.6 26.4 37.4 0.66 1.34 1.15 0.76 1.05 1.38 0.10 1.53 1.18 1.17 1.63 40.7 42.1 28.6 21.1 29.8 34.3 27.4 18.9 28.0 21.9 34.9 25.0 24.0 26.7 27.3 15.5 23.3 1.42 1.99 1.35 1.08 1.69 2.41 1.53 2.16 1.18 2.37 2.19 1.85 1.81 1.82 1.96 40.2 36.9 46.3 45.5 42.9 47.3 41.3 59.1 52.5 49.4 49.6 28.3 45.8 Ser. No. a/(3 1.01 1.29 1.10 1.73 1.76 1.22 75.6 72.8 66.6 77.6 78.2 62.5 61.8 84.9 80.7 78.1 87.9 82.6 80.9 74.7 80.7 72.8 83.0 69.3 63.2 70.0 71.2 73.7 64.4 70.9 69.2 76.2 84.0 76.5 76.1 76.9 43.9 69.1 9327 9382 9508 9375 9471 9472 9479 9439 9359 9444 9360 9509 9480 9383 9343 9445 9446 9473 9361 9447 9345 9862 9363 9346 9364 9347 9384 9385 9474 9344 9348 9349 -137- Table VIII. HIGH QUALITY MALE FLOWER LUPULIN (1969) 1966 crosses for high a Identification 6616-26 -27 -28 -29 -30 -31 -32 -33 -34 -35 -36 -38 -40 -41 -42 -43 -44 -45 -46 -47 -48 -51 -52 -53 -54 -55 -56 -57 Location 01:48a 01:48b 01:49 02:48a 02:48b 02:49 03:48a 03:48b 03:49 04:48a 04:48b 05:48a 05:49 06:48a 06:48b 06:49 07:48a 2nd sample 07:48b 07:49 08:48a 08:48b 09:48b 09:49 2nd sample 10:48a 10:48b 2nd -58 -59 -60 -61 2nd -62 -63 2nd -64 -65 -67 2nd 10:49 11:48a 11:48b sample 11:49 12:48a 12:48b 12:49 sample 13:48a 13:48b sample 13:49 14:48a 14:49 sample %a %a 35.3 33.7 41.0 27.7 32.0 42.2 45.4 39.9 45.6 27.8 0.83 0.74 1.03 0.61 40.1 Ser. No. a/f3 1.15 77.7 79.2 80.9 73.4 59.8 9035 9036 9087 9098 9014 32.4 1.23 72.5 9105 22.9 39.6 31.8 37.5 27.2 28.4 49.2 22.5 45.2 24.7 23.0 46.4 0.47 1.76 0.70 1.52 1.18 0.61 72.1 62.1 76.9 62.2 50.2 74.8 9062 9009 9052 9153 9063 9015 52.8 53.4 56.6 29.7 33.7 46.0 28.9 32.8 34.9 26.6 35.6 45.6 29.0 46.9 33.9 35.7 44.8 16.0 25.7 3.30 68.8 2.08 2.48 0.73 0.86 1.46 0.73 1.44 0.88 79.1 79.5 70.6 73.0 77.5 68.6 9089 9027 9099 9016 9154 9106 9100 9166 9037 9107 9188 9189 9064 9028 9001-2 9038 9108 35.1 40.5 23.7 21.1 44.3 31.3 30.7 31.3 26.9 21.9 18.8 58.3 54.9 36.2 35.4 29.2 44.6 23.4 55.2 50.0 22.8 40.9 39.3 31.5 39.7 22.8 39.7 26.2 21.0 27.2 52.6 26.3 37.5 38.8 28.0 1.01 1.70 1.68 0.54 1.79 0.90 0.92 1.60 55.7 74.7 52.8 56.6 72.8 81.6 73.2 71.5 74.5 72.8 75.7 82.1 76.0 80.5 0.87 2.46 2.60 0.82 1.13 0.95 66.7 59.8 1.42 75.9 0.87 50.3 2.52 2.66 77.2 68.9 9017 9010 9053 9029 9018 9101 9190 9019 9039 9102 -138- Table VIII cont. Identification 6616-69 -70 -72 -73 -75 6618-25 -26 -27 -29 -30 -31 -32 -33 -35 -36 -37 -38 -39 -40 -41 -42 -43 -44 -45 -46 6620-28 -30 -32 -34 -35 -36 -37 -40 -42 -43 -44 -46 -47 -48 -49 -50 Location %a 15:48b 15:49 16:48b 16:49 17:48b 33.0 32.2 39.4 44.6 17:49 18:48a 18:48b 19:48a 19:48b 19:49 20:48a 20:48b % a/8 a+8 30.3 41.3 37.4 30.8 1.09 0.78 1.05 63.3 73.5 76.8 1.45 74.2 9040 9041 9065 9011 59.9 39.2 20.9 40.6 2.87 0.97 80.8 79.8 9066 9030 33.1 50.0 0.88 4.02 1.56 1.48 2.37 1.22 0.61 1.33 2.45 1.47 4.65 0.75 1.11 0.94 70.7 62.5 82.3 69.7 67.4 72.4 78.7 82.5 80.4 79.8 51.5 75.1 78.6 67.5 9109 9067 9068 9168 9142 9169 9119 9020 9069 9070 9070 9054 9021 9042 Ser. No. 21:48a 21:48b 21:49 22:48a 22:48b 22:49 23:48a 23:48b 23:49 24:48a 24:48b 2nd sample 24:49 50.2 41.6 47.4 39.8 30.0 47.1 55.6 47.5 42.4 41.3 32.7 37.6 12.5 32.2 28.1 20.0 32.7 48.7 35.4 24.8 32.3 9.1 43.0 37.4 34.8 26:49 27:48b 28:48a 28:49 28:50a 28:50b 28:51 28:53 28:54b 29:48a 40.9 37.7 39.7 47.0 45.5 51.5 46.6 45.1 44.9 25.3 31.3 32.9 29.2 33.1 32.4 31.9 26.6 32.5 1.61 1.21 1.21 1.61 1.37 1.58 1.46 1.69 1.38 66.2 69.0 72.6 76.2 78.6 83.5 78.5 71.7 77.5 9157 9143 9090 9055 9144 9056 9057 9120 9031 29 :4.8b 38.9 40.6 44.3 50.9 50.2 40.0 33.7 35.7 24.4 33.4 78.9 29.1 26.6 0.97 1.20 1.24 2.08 1.50 1.09 9058 9043 9059 9156 9071 9145 29:50a 29:50b 29:51 29:52a 29:52b 32.1 74.3 80.0 75.3 83.6 55.7 -139- Table VIII cont. a+8 33.5 31.3 42.2 23.3 41.0 38.6 25.2 31.7 1.36 1.53 0.88 2.25 0.83 0.86 1.35 79.1 79.4 79.4 75.9 75.2 71.5 81.4 74.6 9072 9091 9191 9092 9022 9171 9093 9155 33.4 37.3 22.1 1.33 0.99 2.19 77.9 74.1 70.3 9172 9094 9192 Location %a %13 6620-51 29:53 29:54a 29:55 29:56a 29:56b 29:57 29:58b 29:60b 29:61 29:62a 29:62b 29:63 45.5 48.1 37.2 52.6 34.2 33.0 56.2 42.9 44.5 36.8 48.3 -52 -53 -54 -55 -56 -57 -60 -61 -62 -63 -64 Ser. No. a/13 Identification 2.23 -140- Table IX. SY MALE FLOWER LUPULIN ANALYSES (1969) Segregation for yield Collection Date %a 9:93 3:93 4:69 7/16 7/23 7/15 29.0 26.3 27.1 13:68a 13:68a 7/15 7/31 13:86b 13:88a 13:94b 14:94b 15:88a 15:90b 16:86b 16:88a 7/25 7/15 7/15 7/15 7/15 7/25 7/15 7/25 3:78b 5:76a 6:82b 7:80a 7/23 7/15 7/15 7/15 49.7 45.7 29.3 8:86b 8:92a 9:88a 10:86b 10:88a 10:92a 11:88a 12:86b 4:90b 5:86b 5:90b 6:88a 7:88a 7:90b 7:92a Identification 106-S (19170) 110-S (19173) 119-1 (19058) Location oa a +g 44.9 43.0 51.0 0.65 0.61 0.53 73.9 69.4 78.1 9214 9291 9202 31.7 23.4 42.5 38.0 0.75 0.62 74.2 9215 9365 38.2 22.1 28.2 21.8 31.5 34.8 30.0 39.9 32.6 37.8 21.5 1.75 0.70 0.81 1.54 0.71 0.97 0.75 2.17 59.9 53.6 63.0 76.4 68.2 64.2 66.2 68.4 9305 9248 9247 9216 1.69 31.9 29.4 36.8 47.0 36.7 1.24 0.62 0.87 79.1 82.5 76.3 68.6 9292 9203 9219 9220 7/15 7/15 7/15 7/24 7/24 7/24 7/15 7/15 30.5 39.7 25.1 15.2 15.9 14.2 27.3 31.5 31.9 31.5 47.8 20.4 28.3 14.9 33.7 35.6 0.96 1.26 0.53 0.74 0.56 0.95 0.81 0.88 62.4 71.2 72.9 35.6 44.2 29.2 61.0 67.1 9221 9222 9223 9308 9309 9310 9224 9225 7/29 7/15 7/23 7/15 7/23 7/23 7/15 42.9 33.1 22.5 35.4 18.2 28.8 38.4 35.7 38.9 31.9 43.9 21.1 37.6 28.5 1.20 0.85 0.71 0.81 0.86 0.77 1.35 78.6 71.9 54.4 79.4 39.3 66.5 67.0 9338 9204 9293 9226 9294 9295 9205 Ser. No. Fuggle x 106-S 104 104 61.4 Fuggle x 110=S 202 204 212 224 228 231 238 240 46.3 28.3 31.6 28.4 46.8 9217 9306 9218 9307 Fuggle x 119-1 304 325 345 354 Hallertau x 106-S 402 409 416 426 428 433 440 450 Hallertau x 110-S 519 526 531 540 552 555 557 -141- Table IX cont. Identification Location Hallertau x 119-1 3:68a 604 3:72a 609 3:74b 6:70b 612 643 Collection Date %a 7/23 7/15 7/15 7/15 25.1 22.8 36.3 16.3 7/15 7/21 % Ser. No. a/a a+a 43.7 37.7 40.4 58.2 0.57 0.61 0.90 0.28 68.9 60.5 76.7 74.5 9296 9206 9227 9228 7/23 7/23 7/23 7/23 7/22 7/31 15.1 22.1 19.8 14.2 16.5 11.5 5.3 21.1 28.8 52.0 53.2 52.6 53.9 53.5 37.0 58.3 0.52 0.43 0.37 0.27 0.31 0.22 0.14 0.36 43.9 74.2 73.0 66.9 70.4 65.0 42.3 79.4 9249 9290 9297 9298 9299 9300 9289 9366 7/15 7/16 7/24 7/31 7/24 7/15 7/15 7/24 7/15 9.1 13.4 16.8 16.2 1.9 31.6 8.0 5.2 11.0 26.6 35.1 56.9 63.9 57.9 45.4 51.0 25.5 53.0 0.34 0.38 0.30 0.25 0.03 0.69 0.16 0.20 0.21 35.7 48.5 73.7 80.1 59.7 77.0 59.0 30.7 64.0 9229 9250 9311 9367 9312 9251 9230 9313 9252 7/15 7/15 7/25 7/15 16.5 28.6 28.1 33.8 51.1 36.0 42.2 45.6 0.32 0.79 0.67 0.74 67.7 64.6 70.3 79.4 9231 10-S(19105)x 119-1 704 712(6321-01) 721 724 728 731 736 738 8:68a 40:23-24 9:72a 9:74b 10:68a 10:70b 10:74b 11:66b 10-S(19105)x 110-S 801 812(6322-01) 816 823 825 833 842 854 857 8:76a 41:23-24 9:78b 9:84a 10:76a 10:82b 11:80a 12:80a 12:82a 10-S(19105)x 106-S 13:76a 901 14:78b 916 15:78b 928 15:82b 933 9253 9328 9254 -142- Table X. COMPARISON OF cc/f3 RATIOS DETERMINED ON MALE FLOWERS IN 1962 (WHOLE FLOWERS) AND 1969 (LUPULIN et/f3 Accession No. 1962 1969 19170 0.49 0.65, 0.91 19173 0.61 0.57 19009 0.44 0.36 19036 0.38 0.20 52045 0.48 0.64 19037 0.45 0.46 19048 1.34 1.48 19039 1.40 1.45 19041 0.41 0.59 19043 0.58 0.68 19046 0.17 0.20, 0.08 19044 1.42 1.31 19047 1.58 1.14 19007 0.22 0.42, 0.56 19005 0.15 0.17 51101 0.27 19058 0.64 0.37 19060 0.83 0.72 19050 0.28 0.35 19061 0.40 0.20 -143- Table XI. COMPARISON OF RESULTS OF 1965 AND 1969 MALE LUPULIN ANALYSIS Accession Number Year %a %a 19005M 1965 1969 5.9 9.7 19007M 1965 1969 19008M 19006M a/a a+a 58.7 56.7 0.10 0.17 64.6 66.3 14.9 15.3 44.6 36.1 0.33 0.42 59.5 51.4 1965 1969 40.6 40.5 25.6 23.1 1.59 1.75 66.2 63.6 1965 1969 15.2 16.2 48.2 52.4 0.31 0.31 63.4 68.6 19009M 1965 1969 18.3 18.7 42.2 52.1 0.43 0.36 60.5 70.8 19010M 1965 1969 26.6 29.8 22.6 28.0 1.18 1.06 49.2 57.8 19036M 1965 1969 17.7 12.9 53.9 64.4 0.33 0.20 71.6 77.3 19037M 1965 1969 17.5 23.1 47.9 50.0 0.37 0.46 65.4 1965 1969 44.4 35.2 31.5 24.3 1.41 1.45 75.9 59.5 19040M 1965 1969 36.5 38.8 32.7 29.7 1.11 1.30 69.2 68.5 19041M 1965 1969 25.3 30.8 48.7 51.9 0.52 0.59 74.0 82.7 19043M 1965 1969 18.6 20.1 32.4 29.6 0.57 0.68 51.0 49.7 19044M 1965 1969 40.9 41.9 33.7 32.0 1.21 1.31 74.6 73.0 19046M 1965 1969 8.8 11.8 50.3 59.6 0.17 0.20 59.1 71.4 19047M 1965 1969 45.3 37.8 30.4 33.1 1.49 1.14 75.7 70.9 19039M 73.1 -144-- Table XI cont. Accession Number Year %a 19050M 1965 1969 17.5 19.8 49.6 57.3 0.35 0.35 67.1 77.2 19051M 1965 1969 16.1 17.9 57.2 59.0 0.28 0.30 73.3 76.9 19054M 1965 1969 29.5 40.8 21.9 30.5 1.34 1.34 51.4 71.3 19058M 1965 1969 30.1 33.4 51.6 49.3 0.58 0.68 81.7 82.7 19060M 1965 1969 29.9 32.6 41.0 45.2 0.73 0.72 70.9 77.8 19061M 1965 1969 16.1 11.9 51.1 60.6 0.31 0.20 67.2 72.5 19062M 1965 1969 39.7 37.5 35.1 35.9 1.13 1.05 74.8 73.4 19085M 1965 1969 28.1 28.9 50.1 53.4 0.56 0.54 82.4 19170M 1965 1969 21.5 36.4 34.7 39.9 0.62 0.91 56.2 76.3 19172M 1965 1969 13.6 32.0 15.2 26.9 0.90 1.19 28.8 58.9 19173M 1965 1969 28.9 23.9 48.3 46.0 0.60 0.57 77.2 69.9 19182M 1965 1969 40.0 42.5 24.0 23.3 1.66 1.82 64.0 65.7 19183M 1965 1969 34.5 38.4 27.8 32.9 1.24 1.17 62.3 1965 1969 5.5 9.3 20.6 60.7 0.27 0.15 26.1 70.0 1965 1969 21.6 34.3 37.2 0.58 0.75 58.8 45.8 51060M 51061M 78.2 71.2 80.1 -145- Table XI cont. Accession Number Year %a 51101M 1965 1969 13.2 16.6 5114M 1965 1969 52040M a/a a+a 34.4 44.8 0.38 0.37 47.6 61.4 17.3 17.9 38.4 50.5 0.45 0.35 55.7 68.4 1965 1969 10.0 23.3 60.0 50.7 0.17 0.46 70.0 74.0 52042M 1965 1969 1.3 22.3 10.3 27.2 0.13 0.82 11.6 49.5 52044M 1965 1969 15.9 22.2 43.3 41.3 0.37 0.54 59.2 63.4 52045M 1965 1969 15.1 18.6 31.3 28.9 0.48 0.64 46.4 47.5 52046M 1965 1969 13.9 27.4 30.8 48.0 0.45 0.57 44.7 75.3 52047M 1965 1969 35.3 35.2 35.8 34.2 0.99 1.03 69.4 52048M 1965 1969 20.5 14.1 51.9 39.2 0.39 0.36 72.4 53.3 54066M 1965 1969 18.1 41.5 18.7 31.1 0.97 1.33 36.8 72.6 58111M 1965 1969 14.9 28.2 46.6 49.2 0.32 0.57 61.5 77.4 60013M 1965 1969 47.2 45.6 23.9 32.0 1.98 1.43 71.1 77.5 60019M 1965 1969 38.9 39.8 31.1 28.9 1.25 1.38 70.0 50.7 60023M 1965 1969 32.6 30.6 30.4 45.8 1.07 0.67 63.0 76.4 60026M 1965 1969 31.9 41.7 34.6 31.7 0.92 1.31 66.5 73.4 71.1 -146- Table XI cont. Accession Number Year %a %f3 1965 1969 21.8 43.6 1965 1967 1969 60031M 63013M 60028 60038M 63015M a/13 a+13 26.2 37.4 0.83 48.0 81.1 32.6 47 30.8 23.9 24 34.7 1.37 2.0 0.88 56.5 1965 1969 32.1 37.3 38.6 44.0 0.83 0.85 70.7 81.3 1967 1969 53 15 3.5 40.6 33.8 1.20 68 74.4 1967 1969 58 53.6 24 22.0 2.4 2.44 1.17 71 65.5 80 75.6 -147- Table XII. COMPARISON OF 1968 AND 1969 DATA ON HIGH QUALITY MALES Identification 6616-29 6616-34 6616-25 6616-52 6616-54 6616-57 6616-60 6616-67 6616-72 6616-73 6618-26 6618.27 6618-29 6618-39 6618-40 Year a a a/i3 a+13 68 69 13.3 27.7 14.0 45.6 0.95 0.61 73.4 68 69 14.0 22.0 39.1 49.2 0.36 0.47 72.1 68 69 30.5 39.6 15.2 22.5 2.01 1.76 62.1 68 69 7.4 30.7 6.2 32.9 1.20 0.95 63.6 68 69 17.2 45.6 13.0 27.2 1.32 1.68 72.8 68 69 11.9 34.8 11.1 38.1 1.07 0.91 72.9 68 69 21.1 35.1 18.6 40.5 1.14 0.87 75.7 68 69 48.1 52.6 14.4 20.3 3.34 2.59 73.0 68 69 31.0 39.4 17.0 37.4 1.82 1.05 76.8 68 69 29.3 44.6 19.1 30.8 1.53 1.45 74.2 68 69 10.5 29.0 8.0 10.4 2.77 39.4 68 69 41.2 59.9 14.0 20.9 2.94 2.87 80.8 68 69 25.5 39.2 24.4 40.6 0.97 79.8 68 69 27.6 30.0 25.1 48.7 1.10 0.61 78.7 68 69 30.2 47.1 21.9 35.4 1.38 1.33 82.5 1.31 1.05 -148- Table XII cont. Identification 6620-28 6620-34 6620-35 6620-40 6620-42 6620-47 6620-49 6620-51 6620-52 Year a 68 69 47.5 40.9 19.9 25.3 2.39 1.61 66.2 68 69 20.5 47.0 14.7 29.2 1.39 1.61 76.2 68 69 19.9 45.5 15.0 33.1 1.33 1.37 78.6 68 69 21.8 45.1 12.4 26.6 1.76 1.69 71.7 68 69 31.0 44.9 16.8 32.5 1.85 1.38 77.5 68 69 34.5 44.3 19.6 35.7 1.76 1.24 80.0 68 69 25.0 50.2 12.9 33.4 1.93 1.50 83.6 68 69 36.5 45.5 24.3 33.5 1.50 1.36 79.1 68 69 30.4 48.1 16.6 31.3 1.84 1.53 79.4 cx/ a+13 -149- Table XIII. COMPARISON OF RESULTS ON 1969 LUPULIN SAMPLES * = rerun of same sample **= two different collections Sample 6616-52* %a %a a/0 a+0 Ratio 1.01 2) 26.6 27.2 26.2 28.0 0.97 52.8 55.2 0.309 0.251 1) 2) 33.1 31.4 37.6 36.5 0.88 0.86 70.7 67.9 0.242 0.217 1) 2) 50.0 47.8 12.5 15.3 4.02 3.12 62.5 63.2 0.289 0.258 1) 55.6 36.4 24.8 15.2 2.45 2.39 80,4 51.7 .235 .271 45.4 42.7 36.2 26.6 27.8 23.0 1.71 1.54 1.57 72.0 70.5 59.2 .262 .258 .261 38.8 32.9 29.7 26.6 1.30 1.24 68.5 59.5 .238 .212 28.9 35.8 38.6 0.64 0.25 0.25 47.5 3) 18.6 9.0 9.6 44.8 48.2 .237 .245 .211 1) 14.1 2) 14.3 39.2 40.0 0.36 0.36 53.3 54.3 .204 .196 1) 2) 17.9 15.5 44.5 30.9 0.40 0.50 62.3 46.4 .212 .215 6803-67* 1) 2) 54.4 47.9 33.5 37.8 1.63 1.27 87.9 85.6 .200 .199 6802-84* 1) 28.6 28.1 29.8 29.5 0.96 0.95 58.4 57.6 0.230 0.219 34.3 32.7 23.3 24.6 1.47 1.33 57.6 57.3 .250 .233 46.9 47.1 25.4 25.1 1.85 1.88 72.3 .235 .217 6618-32** 6618-33** 6618-41** 1) 2) 6620-50* 1) 2) 3) 19040** 1) 2) 52045* 52048* Pross 5* 1) 2) 2) 6756-26H* 1) 2) 6622-08* 1) 2) 72.2 -150- Table XIV. BREEDING BLOCK AND GERM PLASM MALES Comparison of results obtained in 1964-65 with 1969 analyses % a-acid Accession Number 1964-65 a/13 ratio 1969 1964-65 1969 19170 21 29.8 .6 .65 19173 29 23.9 .6 .57 19009 18 18.7 .4 .36 19048 45 45.0 1.5 1.48 19039 44 35.2 1.4 1.45 19044 41 41.9 1.2 1.31 19007 15 15.3 .3 .42 -151- Table XV. MALE LUPULIN Hermaphrodites (1969) Identification Location %a a/13 a+13 Ser. No. 6753-10 6:18 42.4 21.9 1.94 64.3 9110 6753-28 5:10 35.6 31.0 1.15 66.5 9179 6753-32 5:14 36.5 25.7 1.42 62.5 9111 6756-26 7:10-11 34.3 23.3 1.47 57.6 9121 6760-13 17:42 22.3 24.4 0.91 46.7 9122 6760-93 21:36 27.7 22.7 1.22 50.4 9123 6761-07 22:29 28.5 23.5 1.21 52.0 9124 6769-33 12:06 39.9 24.9 1.61 64.8 9125 6763-13 9:05 30.8 41.1 0.75 71.9 9126 6772-02 18:20 47.3 24.4 1.94 71.7 9127 6772-05 18:23 35.0 27.3 1.28 62.3 9128 6775-05 19:03 42.0 33.8 1.24 75.7 9129 6777-14 21:14 46.8 20.7 2.26 67.5 9130 -152- MINT INVESTIGATIONS C. E. Horner and S. T. Likens Introduction Oregon mint growers produced in 1969 the largest crop of peppermint oil on record, about 2,200,000 pounds. Acreage planted to mint was also the highest on record with 36,000 in 1969, up from 24,000 in 1967, and 31,000 in 1968. The 1969 crop was of excellent quality in all Oregon production areas. Verticillium wilt, which a few years ago was removing about 2,000 acres per year from production, has been brought under practical control in Western Oregon, but is continuing to spread slowly in Central Oregon. Our major research emphasis in 1969 was on evaluation of wilt-resistant peppermint strains. We continued with our Certified wilt-free planting stock program and under took stubble flaming trials in Central Oregon for wilt control. Wilt-Resistant Varieties Five wilt-resistant strains were grown in large plots for the second year on two different locations in 1969. At one of the locations (Chambers), we have obtained reliable yield, maturity, and disease resistance data for two years and oil samples for flavor evaluation have been obtained which should be comparable to those from commercial practice. At the other location (Hamlin), management problems with perennial weeds and irrigation have resulted in poor oil samples and these plots have been discontinued. Pertinent data from the 1969 Chambers plots is tabulated below. Summary of yield, disease, and quality data from 1969 Chambers plots of wilt-resistant peppermint strains Strain 58 3202 1229 3201 92 Mitch /a Wilt plants per 1000 sq. ft. Yield lbs/A Ester 29 13 63 12 78 63 6.8 6.7 4.2 6.9 7.3 76 7.8 12 9 77 88 80 /a Quality Alcohol Ketone 58.2 56.6 52.5 59.6 59.5 58.1 22.7 23.6 26.0 21.4 21.3 22.4 M-Furan 1.7 1.9 1.8 1.7 2.3 1.3 Quality data supplied by A. M. Todd Company In addition to harvesting commercial samples for oil yield and quality, the Chambers plots were sampled weekly from July 15 through September 2 to obtain small samples of oil to evaluate for menthofuran content in relation to harvest date. Earlier observations indicated that some of the resistant -153- strains matured earlier than Mitcham and had a slightly higher menthofuran when harvested the same time as Mitcham. Oil samples are still being evaluated at this writing, but preliminary indications are that higher menthofuran content of the wilt-resistant strains is associated with their earlier maturity. In 1968, several hundred plants of each strain were put throught our wilt-screening program and wilt-free plants were planted in Central Oregon. These were increased in wilt-free field plots in Central Oregon in 1969 and replanted to provide test plots for yield and quality from that area in 1970. During a three-year evaluation of about 60 other strains of peppermint supplied by Dr. Murray, one strain was noticed that decreased in wilt incidence and severity each year and that produced a vigorous spreading growth under severe wilt, flaming, and intense management practices. This strain, No. 1034, has been selected for further testing. Rootstock has been supplied Dr. Murray and additional stock is being propagated wiltfree by us. This strain warrants further evaluation because of its ability to grow and spread vigorously under the current flaming-chemical weed control practices used in Oregon and because of its apparent high resistance to wilt. Wilt Control by Stubble Flaming Stubble flaming after harvest, combined with Sinbar for weed control to eliminate plowing and cultivation, continues to be effective in stopping the spread of wilt in Western Oregon where it is now practiced by all growers. In Central Oregon, we established stubble-flaming trials on two farms On the Siegenhagen farm north of Madras, trials were established in a field with light wilt infestation and will be continued for three years. On the Nance farm at Metolius, trials were established in a field with moderate wilt infestation. These plots have been set up in a manner to obtain wilt control, yield, and quality data from plots treated as follows: (1) Flamed, then plowed and cultivated normally; (2) flamed, then not plowed or cultivated; (3) not flamed, but plowed and cultivated normally. in 1969. Results are now available from a three-year study on flaming in rillirrigated mint near Hermiston in North-Central Oregon. In this trial there has been no further spread of wilt since flaming was started. Further, yields have not been depressed by flaming without cultivation, remaining between 120 and 108 pounds per acre during the study. Certified Planting Stock This program was completed in 1969 and turned over entirely to the Oregon State Plant and Seed Certification Service. In 1969 we provided about 20,000 wilt-free plants to qualified growers. The amount of Certified Mitcham Peppermint planting stock available in October, 1969 was 350 acres. This should be sufficient for spring planting needs in 1970. -154- Rust Control - Some Problems and Solutions Many Willamette Valley growers had problems with rust in 1968 and 1969. We made a restudy of the problem, and from checking several commercial fields, we feel that there are two major factors contributing to poor rust control. As I see it, these are: 1. Flaming too early. Success of flaming is based on catching the rust fungus in the most vulnerable stage of its yearly life cycle. Normally, this occurs between April 1 and May 15. However, a cool wet spring will delay the fungus in coming to its most vulnerable stage and an early warm one will advance its development. In 1969, for example, it was April 10 before rust was in its most vulnerable stage to kill by flaming. In some years it has been ready as early as March 20. The best advice seems to be: Don't start flaming before April 1 except in years of early warm weather when flaming could be started in the last half of March. 2. Poor heat penetration in dense, matted rootstock. Here the problem is one of getting enough heat into the lower layers in a dense mat of runners. There are basically two solutions to the problem: One is to run the flamer slower and the other is to flame twice, a few days apart. Flaming twice is the surest, but also consumes more gas. A non-functioning burner or lap-skips will both allow rust to survive flaming, and given favorable weather (for rust), an epidemic will follow. If you will remember back 10-15 years ago, when rust was really a problem, you will have to agree that flaming has been a generally successful control. Attention to the details of timing and thorough coverage can make it a perfect control for rust. Mr. John McIntyre, graduate student at OSU on the Mint Industry Research Grant, conducted a series of laboratory and field experiments on the temperatures required to kill the wilt fungus inside mint stems. In laboratory experiments he found that: 50° C. (122° F.) gave 83% kill 50° C. for 60 seconds gave 88% kill 60° C. (140° F.) gave 87% kill 60° C. for 60 seconds gave 98% kill 70° C. (158° F.) gave 96% kill 70° C. for 60 seconds gave 100% kill We then conducted a series of flaming experiments in the field with a standard field flamer operated at various speeds and at a constant gas pressure of 35 psi. We measured the internal stem temperatures obtained at various flamer speeds with electronic temperature probes placed in the center of the stems, then conducted lab assays to determine the kill of Verticillium. -155- Kill of Verticillium in Mint Stems Flamer speed 1.5 mph 2.0 " 2.7 " 3.6 " Gas pressure 35 psi 35 35 35 " " " Percent kill 99.0 98.7 98.0 88.0