USDA ARS GEM
Field Day 2003
GEM MINI-NURSERY BOOK
GERMPLASM ENHANCEMENT OF MAIZE
Central Iowa Field Day
DEMONSTRATION PLOT MAP
N
ENTRY NUMBERS RUN FROM EAST TO WEST
101
150
RANGE 3
POPGEM Populations and Lines / Hybrids from GEM NC State
51
100
RANGE 2
Breeding for Value Added Traits and Experimental Hybrids
1
50
RANGE 1
Breeding History Demonstration and Lines for Potential Release
Field History:
Fertilizer:
Herbicide:
Insecticide:
Planted on May 20th, 2003.
N/P/K 177-0-0.
A Dual II Magnum/A Callisto
Lorsban
GEM homepage: www.public.iastate.edu/~usda-gem
Page 1 of 11
USDA ARS GEM
Field Day 2003
Germplasm Enhancement of Maize Project
USDA-ARS
Field day in conjunction with the CAD Field Day at the Bruner Farm
September 17 – 18, 2003
The Germplasm Enhancement of Maize (GEM) Project is a cooperative effort of the United States
Department of Agriculture’s Agricultural Research Service (USDA-ARS), land-grant universities,
private industry, international, and non-governmental organizations. The mission of the project is to
broaden the genetic base of maize germplasm, increasing its diversity through introgression of unique
and novel germplasm into elite, adapted lines. The GEM Project is administered through the USDAARS’s Plant Introduction Research unit in Ames, IA.
Breeding History (rows 1-20):
The history of corn breeding usually begins with the original Stiff Stalk Synthetic. Lines derived
from this synthetic or advanced cycles were very popular commercially and are important breeding
sources designated as stiff stalk (SS) related. A popular non-stiff stalk (NS) family includes
Lancaster, and Mo17 and Oh43 are representatives of this group. The popular hybrid B73xMo17
(mid-1970’s-1980’s), is shown adjacent to a modern medium season hybrid. The tropical accession,
CUBA164, has been an important source of VAT’s and yield enhancement for GEM.
GEM lines for potential release and topcross hybrids (rows 21-50; 71-100):
GEM inbred lines (S3 bulks) are planted in range 1 with the adjacent range 2 planted to the top cross
counterpart for comparative observation. The tester lines used by GEM are elite Corn Belt inbreds
LH185, LH283, LH198, and LH200 (Holden’s Foundation Seed, L.L.C.). The pedigrees of the S3’s
are labeled to denote percentage of temperate or tropical exotic germplasm (25% or 50%) in the line,
and the country and race of origin. Temperate germplasm in the demo includes Argentina, Chile,
Uruguay, USA; tropical germplasm includes Brazil, Cuba, Mexico, St. Croix, and Thailand. Hybrids
planted in the demo are in second year trials in 2003, or will be tested for the second year in 2004.
Value-added trait (VAT) lines and research (rows 51-70):
Grain quality analysis is done in our labs in Ames managed by Sue Duvick. Exotic germplasm is an
important source of VAT’s. GEM is studying the composition and quality of protein, oil, and starch
in inbred lines and hybrids. Target values include protein content 13%, oil 6%, and starch 75%.
Amino acid content is evaluated for lysine, tryptophan, and methionine; and fatty acid analysis is
made for oil quality. Starch thermal properties are analyzed to determine predictive functionality for
food and industrial applications. Some of the thermal traits being researched include peak
temperature onset for starch gelatinization, range of gelatinization, enthalpy and percent
retrogradation, and peak height index of thermogram. Inbred lines in the demo are some of the GEM
lines developed in Ames, Raleigh, and UDEL that are being further inbred, topcrossed, and/or
recombined with other lines for further enhancement of protein, oil, and starch quality.
POPGEM (rows 101-112):
The POPGEM project started in 2000 and is being coordinated by Ken Ziegler at ISU. The 12 rows
are 4 rows each of the 3 heterotic groups in popcorn: AP=Amber Pearl, SA=South American and
SG= Supergold. These rows represent the first populations of POPGEM where private company
popcorn inbred lines were crossed to exotic material from the Iowa State University and University
GEM homepage: www.public.iastate.edu/~usda-gem
Page 2 of 11
USDA ARS GEM
Field Day 2003
of Missouri popcorn breeding programs. A second set of exotic material from the Iowa State
University popcorn breeding program will be crossed to private company popcorn inbred lines next
year. GEM material is undergoing popcorn pre-breeding in the ISU popcorn breeding program to
prepare it to be the third set of exotic material crossed to popcorn. Seventeen NS and 51 SS GEM
populations are being used.
NC Raleigh GEM (rows 113-138):
GEM’s effort in the southeast is coordinated by USDA-ARS technician Joe Hudyncia, who works
closely with Professor Major Goodman at NC State. Hybrids in the demo are being evaluated for
adaptability and yield performance throughout the Midwest this year. Several of the lines have
unique VAT’s including high protein, oil, and starch thermal properties.
GEM Breeding crosses (rows 139-150):
New breeding crosses being worked in the GEM nursery in 2003 include eight temperate (25% or
50%) populations, and four 25% tropical populations. Half of the populations are classified as SS,
and half are the NS group. S1 families from each breeding cross will be planted and selected next
summer in the Midwest.
More information on the structure and organization of the GEM Project, yield trial results, GEM
accomplishments, and summaries of University and other USDA-ARS research with GEM
germplasm can be found on our web site, http://www.public.iastate.edu/~usda-gem/.
GEM homepage: www.public.iastate.edu/~usda-gem
Page 3 of 11
USDA ARS GEM
Entry
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
Field Day 2003
RANGE 1 – Breeding History Demonstration & Lines for Potential Release
Pedigree
Mid Pollen
Comments
Breeding History Demonstration
Original Stiff Stalk
July 27
B14
July 29
B37
July 29
B64
August 3
B68
August 2
B73
July 30
B84
July 31
Lancaster Sure Crop
< July 21
Mo17
August 1
Oh43
July 26
B73 x Mo17
July 26
Modern Commercial Hybrid (medium season)
July 24
CUBA164
Aug. 25-30
CUBA164:S20
August 1
CUBA164:S2012
July 31
CUBA164:S2012-444-1-B
August 3
CUBA164:S2012-444-1/LH185
July 27
Modern Commercial Hybrid (full season)
July 31
CUBA164:S2012-444-1-B/LH283
July 31
AR16026:S1704-139-1/LH185
July 26
21 AR16026:S1704-153-1-B
21
30 GEM Lines for Potential Release
July 31
GEM homepage: www.public.iastate.edu/~usda-gem
Page 4 of 11
USDA ARS GEM
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
Field Day 2003
AR16035:S02-450-1-B-B
August 3
AR16035:S02-611-1-B-B
August 1
AR16035:S02-615-1-B-B
August 2
AR16035:S19-285-1-B
August 4
CH05015:N1204-380-1-B
July 31
CH05015:N12-183-1-B-B
August 3
CH05015:N15-3-1-B-B
August 1
CHIS740:S1411a-783-2-B
July 30
CHIS775:S1911b-439-1-B
July 31
CUBA117:S15-101-1-B-B
August 2
CUBA164:S1511b-325-1-B
July 31
CUBA164:S1517-163-1-B
July 29
CUBA164:S2012-444-1-B
August 3
CUBA164:S2012-966-1-B
July 27
DK212T:N11a-138-1-B
August 3
DKB844:S1601-3-2-B
August 4
DKXL212:N11a-139-1-1-B
August 2
DKXL370:N11a20-322-B
July 31
DKXL370:N11a20-36-2-B
July 27
FS8(A)S:S09-349-1-B-B-B
August 1
FS8A(S):S09-362-1-B
August 2
FS8B(S):S0316-1168-1-B-B-B
July 31
FS8B(T):N11a-87-1-B
July 29
GEM homepage: www.public.iastate.edu/~usda-gem
Page 5 of 11
USDA ARS GEM
45
45
46
46
47
47
48
48
49
49
50
50
FS8B(T):N1809-946-1-B-B
Field Day 2003
August 2
SCR01:N1310-358-1-B-B
July 28
SCR01:N1310-509-1-B-B
August 4
UR01089:S0525-519-1-B
July 29
UR10001:S1813-257-1
UR13085:N0215-14-1-B
August 2
July 28
RANGE 2 – Breeding for Value-Added Traits & Experimental Hybrids
Pedigree
Mid Pollen
Comments
Breeding for Value-Added Traits *
51 DK212T:S11 F2S4 2089-01
August 3
51
52 SE32(BR052051):S17 F2S4 2011-01
August 2
52
53 DKB830:S11 F2S4 2201-01
August 3
53
54 AR17056:N2025-574-1-B-B
July 29
54
55 CUBA164:S1511b-325-1-B
August 3
55
56 DKB844:S1601-491-1-B
August 5
56
57 CUBA164:S15-118-6-9-B-B
August 4
57
58 CUBA164:S1517-241-2-B
August 1
58
59 CUBA164:S2012-459-1-B
July 29
59
60 FS8B(S):S0316-53-2-B
August 2
60
61 DXKL370:N11a20-410-1-B
July 28
61
62 CUBA164:S15-118-6-13-B-B
August 4
62
63 UR01089:S0525-3-1-B
August 1
63
64 FS8B(S):S0316-230-2-B
August 2
64
65 AR16026:S17-104-1-B
August 1
65
Entry
GEM homepage: www.public.iastate.edu/~usda-gem
Page 6 of 11
USDA ARS GEM
Field Day 2003
66
66
67
67
68
68
69
69
70
70
AR16026:S17-211-1-B
July 29
DE4 (UDEL)
July 31
DE3 (UDEL)
July 29
71
71
72
72
73
73
74
74
75
75
76
76
77
77
78
78
79
79
80
80
81
81
82
82
83
83
84
84
85
85
86
86
87
87
88
88
AR16026:S1704-153-1/LH283
DKXL212:N11a-234-1-1-1-1-1-1-1-1
August 3
PE001n16F2S2-44
August 5
Experimental Hybrids – Topcrosses of the Lines in Range 1
July 29
AR16035:S02-450-1-B-B/LH185
July 26
AR16035:S02-611-1-B-B/LH185
July 26
AR16035:S02-615-1-B-B/LH185
July 26
AR16035:S19-285-1-B/LH185
July 26
CH05015:N1204-380-1/LH198
July 25
CH05015:N12-183-1-B/LH198
July 29
CH05015:N15-3-1-B/LH198
July 25
CHIS740:S1411a-783-2/LH185
July 26
CHIS775:S1911b-439-1/LH185
July 25
CUBA117:S15-101-1-B/LH185
July 26
CUBA164:S1511b-325-1/LH185
July 26
CUBA164:S1517-163-1/LH185
July 26
CUBA164:S2012-444-1/LH185
July 27
CUBA164:S2012-966-1/LH185
July 25
DK212T:N11a-138-1/LH198
July 29
DK844:S1601-3-2/LH185
July 27
DKXL212:N11a-139-1-1/LH198
July 29
GEM homepage: www.public.iastate.edu/~usda-gem
Page 7 of 11
USDA ARS GEM
89
89
90
90
91
91
92
92
93
93
94
94
95
95
96
96
97
97
98
98
99
99
100
100
Field Day 2003
DKXL370:N11a20-322/LH198
July 26
DKXL370:N11a20-36-2-B-B/LH198
July 27
FS8(A)S:S09-349-1-B-B/LH283
July 25
FS8(A)S:S09-362-1-B-B/LH185
July 25
FS8B(S):S0316-1168-1-B-B/LH185
July 27
FS8B(T):N11a-87-1/LH198
July 27
FS8B(T):N1809-946-1-B-B/LH198
July 28
SCR01:N1310-378-1-B-B/LH198
July 29
SCR01:N1310-509-1-B-B/LH198
July 27
UR01089:S0525-519-1/LH283
July 29
UR10001:S1813-257-1/LH185
July 26
UR13085:N0215-14-1-B/LH198
July 26
RANGE 3 – POPGEM Populations and Hybrids from GEM NC State
Entry
Pedigree
Mid Pollen
Comments
Experimental Populations from POPGEM
101
POPGEM AP
--F2 bulk of Flints and Dents crossed to
101 Amber Pearl type Popcorns.
102
POPGEM AP
--102
103
POPGEM AP
--103
104
POPGEM AP
--104
105
POPGEM SA
--F2 bulk of Flints and Dents crossed to
105 South American type Popcorns.
106
POPGEM SA
--106
107
POPGEM SA
--107
108
POPGEM SA
--108
109
POPGEM SG
--F2 bulk of Flints and Dents crossed to
109 Supergold type Popcorns.
GEM homepage: www.public.iastate.edu/~usda-gem
Page 8 of 11
USDA ARS GEM
110
110
111
111
112
112
Field Day 2003
POPGEM SG
---
POPGEM SG
---
POPGEM SG
---
Hybrids from GEM NC State Raleigh
113 DK370A:S11 F2S4 2253-01/LH185
July 26
113
114 DK888:S11 F2S4 2131-01/LH185
July 25
114
115 DK212T:S11 F2S4 2109-01/LH283
July 26
115
116 DK212T:S11 F2S4 2111-01/LH185
July 27
116
117 DK212T:S11 F2S4 2112-02/LH185
July 26
117
118 DK888:S11 F2S4 2127-01/LH283
July 31
118
119 DK888:S11 F2S4 2132-03/LH185
July 25
119
120 DK212T:S11 F2S4 2086-01/LH185
July 29
120
121 DK888:S11 F2S4 2143-02/LH185
July 28
121
122 DK370A:S11 F2S4 2250-02/LH185
July 29
122
123 DK888:S11 F2S4 2150-01/LH283
July 31
123
124 DK888:S11 F2S4 2152-03/LH185
July 27
124
125 DKB830:S11 F2S4 2201-01/LH283
Aug. 1
125
126 PE001n16F2S2-172/LH200
Aug. 1
126
127 PE001n16F2S2-176/LH198
Aug. 1
127
128 DK888:S11 F2S4 2121-04/LH185
July 27
128
129 PE001n16F2S2-193/LH198
July 31
129
130 PE001n16F2S2-239/LH198
July 30
130
GEM homepage: www.public.iastate.edu/~usda-gem
Page 9 of 11
USDA ARS GEM
131
131
132
132
133
133
134
134
135
135
136
136
137
137
138
138
139
139
140
140
141
141
142
142
143
143
144
144
145
145
146
146
147
147
148
148
149
149
150
150
Field Day 2003
PE001n16F2S2-431/LH198
July 29
PE001n16F2S2-44/LH198
August 1
PE001n16F2S2-521/LH198
July 31
PE001n16F2S2-65/LH198
July 31
PE001n16F2S2-705/LH198
August 2
PE001n16F2S2-857/LH198
July 30
SE32(BR052051):S17 F2S4 2011-01/LH185
July 30
XL370A:S11 F2S4 2226-02/LH185
July 31
AR16026:N1210
GEM Breeding Crosses
July 27
AR16035:S3115
July 27
AR17056:N20
July 26
BIGWHITE:S0330
July 24
BR051501:S11a20
July 30
DKB830:S11a17
July 26
DKXL212:S0912
July 26
SCROGP3:N2001
July 27
UR01089:N22
July 28
UR10001:S18
July 28
UR11002:N0302
July 26
UR13085:N02
July 26
* For further information, please see the Appendix on the next page.
GEM homepage: www.public.iastate.edu/~usda-gem
Page 10 of 11
USDA ARS GEM
Field Day 2003
APPENDIX
Entry
Number
Pedigree
Description
DM %
Protein
DM %
Oil
DM %
Starch
17.0
3.3
66.5
15.0
5.1
66.3
10.1
2.5
71.3
16.6
3.0
67.1
16.6
4.1
63.9
16.2
3.4
66.3
16.0
3.7
66.9
15.9
4.8
64.2
15.7
3.9
66.7
15.4
3.4
66.9
15.2
3.8
67.7
15.1
3.8
68.4
15.0
4.2
67.0
15.0
4.7
67.0
11.3
2.4
71.2
12.4
2.8
71.1
51
DK212T:S11 F2S4 2089-01
NC-GEM
52
SE32(BR52 051):S17 F2S4
2011-01
NC-GEM
53
DKB830:S11 F2S4 2201-01
NC-GEM
54
AR17056:N2025-574-1-B-B
Starch quality: high temp
gelat; high % retrogradation.
55
CUBA164:S1511b-325-1-B
See hybrid entry 82
56
DKB844:S1601-491-1-B
Composition research
57
CUBA164:S15-118-6-9-B-B
Composition research
58
CUBA164:S1517-241-2-B
Composition research
59
CUBA164:S2012-459-1-B
Composition research
60
FS8B(S):S0316-53-2-B
Starch quality: low temp
gelatinization;
61
DXKL370:N11a20-410-1-B
Composition research
62
CUBA164:S15-118-6-13-B-B
Composition research
63
UR01089:S0525-3-1-B
Composition research
64
FS8B(S):S0316-230-2-B
Composition research
65
AR16026:S17-104-1-B
Composition research
66
AR16026:S17-211-1-B
Composition research
4.3
65.7
DE4
GEM derived line from
UDEL
14.6
67
3.8
64.3
DE3
GEM derived line from
UDEL
16.6
68
DKXL212:N11a-234-1-1-1-11-1-1-1
GEM derived line from
UDEL
16.6
4.4
64.0
69
12.0
3.8
68.2
70
PE001n16F2S2-44
NC-GEM
GEM homepage: www.public.iastate.edu/~usda-gem
Page 11 of 11