USDA ARS GEM
Field Day 2006
GEM MINI-NURSERY BOOK
GERMPLASM ENHANCEMENT OF MAIZE
Field Day - Sept. 21, 2006
DEMONSTRATION PLOT MAP
N
ENTRY NUMBERS RUN FROM WEST TO EAST
1
75
RANGE 1
Breeding History and Inbreds
150
76
RANGE 2
Top Crosses
Field History:
Fertilizer:
Herbicide:
Insecticide:
Planted on April 27th, 2006
Total: N 120 lbs/acre, P 40 lbs/acre, and K 40 lbs/acre
PPI: Harness 2 pt/acre
None
GEM homepage: www.public.iastate.edu/~usda-gem
Page 1 of 12
USDA ARS GEM
Field Day 2006
Germplasm Enhancement of Maize Project
USDA-ARS
North Central Regional Plant introduction Station
Ames, Iowa
September 21, 2006
The Germplasm Enhancement of Maize (GEM) project is a cooperative effort of the United States
Department of Agriculture’s Agricultural Research Service (USDA-ARS), universities, private
industry, international, and non-governmental (NGO) organizations to collaboratively broaden the
germplasm base and develop enhanced germplasm from exotic sources. The GEM Project is
administered through the USDA-ARS Plant Introduction Research Unit in Ames, IA (Research
Leader, Candice Gardner), and the Plant Science Research Unit in Raleigh, NC. The sources of
germplasm include exotic temperate and tropical accessions identified by the Latin American Maize
Project (LAMP), and from North Central Regional Plant Introduction Station (NCRPIS) maize
collection. Other exotic sources include material from Thailand, CIMMYT, etc. The exotic
accessions are crossed with adapted proprietary inbreds provided by GEM cooperator companies as
part of “in kind support” of the project. Presently GEM has cooperators from 22 private companies,
20 public institutes, one NGO, and 10 international cooperators. Guidance to the GEM project is
provided by the GEM Technical Steering Group (TSG) with 10 members representing private
industry and the public sector.
Breeding history and GEM breeding methods (entries 1-29):
Maize has an interesting history of domestication and improvement beginning with the wild relative,
teosinthe more than 9,000 years ago. Improvements include better yield, stalk lodging resistance,
disease/insect resistance, and stress tolerance. Entries 1-29 are side by side observations of
germplasm used in the US Corn Belt. The original Stiff Stalk Synthetic (SS) developed by George
Sprague in the early 1930’s, the improved cycles of SS, and derived lines from SS follow. A new
feature in 2006 includes some expired PVP lines planted adjacent to the public lines that were
involved in the pedigree parentage of the PVP lines. Improvements can be seen for stay green, stalk
lodging, and general appearance as the era of breeding advances towards present day germplasm. The
most popular double cross of the 1930’s include US 13, and this hybrid and the four parental lines
are planted in the demo plot along side B73 x Mo17, and GEM top cross hybrids. The GEM
breeding protocol is a modified pedigree method originating from crosses to exotic accessions made
by private GEM cooperators (with their proprietary lines). Early generation testing starts at the S2
stage (first year trials), and S3 stage (second year trials). The testers used are elite proprietary lines.
In the Midwest, the breeding focus is for 25% tropical breeding crosses, and 25% and 50% temperate
breeding crosses. The GEM program in Raleigh, NC focuses on 50% tropical breeding crosses.
Recommended and re-test lines, and their topcross hybrids (entries 30-93, with corresponding
top crosses in south range from 58 to 121. Retest hybrids from 122-131)
GEM inbreds are recommended each year to GEM cooperators based on 2 year’s of trial data. Some
of the recommended lines (years 2004-2006) also have value-added traits including disease
resistance, % protein, protein quality (amino acids), oil, and starch properties. Also included in this
section are GEM lines that are now available to the public.
GEM homepage: www.public.iastate.edu/~usda-gem
Page 2 of 12
USDA ARS GEM
Field Day 2006
Value-added traits (VAT) and Methods (distributed throughout the plot and designated on
signs)
Grain quality analysis is conducted in our labs in Ames managed by Sue Duvick, USDA-ARS. All
VAT data was taken on seed derived from self pollinated lines. No VAT data is available for top
crosses although we plan to collect top cross data in 2007. Near infrared spectroscopy (NIR)
analysis is done on shelled grain to determine protein, oil, and starch content. GEM target values
include protein of 13%, oil 6%, and starch 75%. Amino acid analysis is being studied in
collaboration with Paul Scott, USDA-ARS, Corn Insects and Plant Genetics Research Unit in Ames.
A protein quality index is used based on the three limiting amino acids-methionine, lysine, and
tryptophan. The method used for amino acid analysis is the microbial method reported by Scott et al.
in 2004 (Maydica 49: 303-311). Starch thermal properties are analyzed by Differential Scanning
Calorimetry (DSC) to determine functionality and potential for food and industrial applications.
Further starch research is done by Dr. Jay-lin Jane, Iowa State Department of Food Science and
Human Nutrition. Dr. Jane’s research includes the molecular analysis of amylopectin branching,
enzymology for starch digestibility, and new lab methods to identify germplasm with “resistant”
starch. Resistant starch is now receiving increased attention for human nutrition, diabetes, and
obesity.
Public Cooperator Research and released public GEM lines:
Germplasm developed by public cooperators through specific cooperator agreements (SCA) include
7 Universities. Most of these lines are publicly available and have one or more attributes such as
VAT’s, disease resistance, mycotoxin resistance, drought tolerance, and silage yield/quality.
North Carolina State University (entries 52-58 and corresponding top crosses 93-99): North
Carolina State focuses on the development of 50% tropical germplasm under the leadership of Dr.
Major Goodman. In addition to the above entries, public GEM releases from this program include
entry 58 (GEMS-0016), entry 61 (GEMS-0030), and entry 64 (GEMS-0003). The North Carolina
GEM lines have interesting attributes that include leaf resistance, Fusarium ear rot resistance, high
protein, oil, and above average amino acid balance. Twenty-nine registered GEM lines in 2006 are
publicly available through NCRPIS, and listed in Crop Sci. 46:996-998, and Crop Sci. 46:1825-1826.
More information can be found in Public Cooperator Report 2005, Goodman, on GEM web site.
Ohio State University (entry 63 and corresponding top cross entry 88): Dr. Richard Pratt
developed GEMS-0002 under disease and stress environments in Ohio, with collaborative breeding
and trial support from GEM private cooperators, and the USDA-ARS in Ames. GEMS-0002 is a SS
line derived from the 50% exotic breeding cross, FS8A(S):S09. GEMS-0002 is 2 days earlier
flowering than B73 in Ames, and has fast dry down with good stress tolerance. GEMS-0002 had
outstanding fusarium ear rot and fumonisin resistance in 2005, and studies are being repeated in
2006. The line was registered in 2005, and is publicly available through the NCRPIS. See Crop Sci.
45:2130-2131.
University of Delaware (entries 66-68 and corresponding top crosses 83-85): Dr. Jim Hawk
developed DE3 and DE4 which are non-stiff stalk lines derived from the Brazilian 50% tropical
breeding cross, DKXL212:N11a. DE4 is a good source for gray leafspot resistance. The
experimental line, DKXL212:N11a-139 has above average amino acid index (three year’s data, Paul
Scott Lab, USDA-ARS, Ames, IA). DE3 and DE4 were registered in 2005. See Crop Sci. 45:26692670.
GEM homepage: www.public.iastate.edu/~usda-gem
Page 3 of 12
USDA ARS GEM
Field Day 2006
Texas A&M University (entries 70-71 and corresponding top crosses 80-82): Dr. Wenwei Xu’s
research in Lubbock, TX focuses on the development of lines and breeding methods for abiotic stress
tolerance. Tx204 and Tx205 are NS sister lines and derived from the 25% breeding cross,
AR01150:N0406. Tx204 has a white cob, and Tx205 has a red cob. The lines have excellent silking
ability; stay green; and are resistant to leaf firing under heat and drought stress. Both lines have good
combining ability with LH200, B110, B113, and are publicly available through Texas A&M. See
Public Cooperator Report 2005, Xu, on GEM web site.
University of Wisconsin (entries 132-134): W605S was developed by Dr. Jim Coors in 2004.
Inbred W605S (a non-stiff stalk derived from the 25% breeding cross, AR17056:N1019) was
released for its high milk production index per acre, and high neutral detergent fiber digestibility
(NDFD). The research in Wisconsin includes breeding methods to enhance silage yield and
nutritional quality with exotic germplasm. W605S is publicly available from the University of
Wisconsin. See Public Cooperator Report, 2005, Coors, on GEM web site, and Silage Breeding
website, University of Wisconsin.
Cornell University (entries 135-137): Dr. Margaret Smith plans to release 3 GEM lines with
anthracnose resistance in the near future. Planted in the demo plot are top crosses with lines from
FS8B(T), and AR01150 from the US and Argentina respectively. See Public Cooperator Report
2005, Smith, on GEM web site.
Truman State University (entries 138-140): Top crosses with Amylomaize VII lines (70% amylose)
are from Dr. Mark Campbell’s research using exotic germplasm from the GEM Project. The 50%
tropical breeding cross, GUAT209:S13 was found to be a source of modifier alleles to enhance
amylose levels when combined with sources having the amylose extender allele, ae. This germplasm
(GUAT209:S13, S4 generation) will be publicly released as GEMS-0067 in the near future.
Research now in progress includes identifying and mapping the modifier allele(s) with molecular
markers. The three top crosses planted in the demonstration include converted GEM lines derived
from Mexican Tuxpeno, Brazilian, US, and Cuban germplasm that have been converted to 70%
amylose using the GUAT209:S13 source. All of the hybrids are fully GEM x GEM on both sides of
pedigree. See Public Cooperator Report 2005, Campbell, on GEM web site.
GEM breeding crosses (entries 72-78) and allelic diversity germplasm (entries 141-150):
Some of the breeding crosses that have been found to be useful sources of germplasm are shown in
the plot with the corresponding lines identified that were derived from these breeding crosses. All of
the breeding crosses are 25% exotic and comprise about five races of maize. The allelic diversity
germplasm represents new races that have not been used by GEM. Some of the races include tropical
Highland that are very difficult to work in US environments.
More information on the structure and organization of the GEM Project, membership, yield trial
results, germplasm releases, and summaries of University and USDA-ARS research can be found on
our web site, http://www.public.iastate.edu/~usda-gem/. Information and public availability of the
LAMP accessions used by GEM can be found at the Germplasm Resources Information Network
(GRIN) at the web site, http://www.ars-grin.gov.
GEM homepage: www.public.iastate.edu/~usda-gem
Page 4 of 12
USDA ARS GEM
Field Day 2006
2006 GEM Field Day (Planted on April 27th)
Entry
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
26
27
28
29
Entry
30
121
Pedigree
Corn x teosinthe (wild relative)
Teosinthe (wild relative of corn)
Original Stiff Stalk Synthetic (SSS C0)
B14
LH74
Stiff Stalk Synthetic cycle 5
B73
LH132
BS13(S2)C1
B84
Lancaster Sure crop
Mo17
LH51
Oh43
LH39
Wf9
38-11
L317
Hy
Wf9 X 38-11
L317 X Hy
U.S. 13 double cross hybrid
Cuba 164
CUBA164:S20
CUBA164:S2012
CUBA164:S2012-459-001-B
CUBA164:S2012-459-001-B x LH185
B73xMo17
LH198 x LH185
Pedigree
AR17056:N2035-421-001-B-B
AR17056:N2035-421-001xLH198
GEM homepage: www.public.iastate.edu/~usda-gem
Shed
Date
Silk
Date
80
84
80
80
84
82
81
83
71
82
74
78
80
80
87
84
83
77
80
77
106
84
83
84
78
79
78
82
91
81
82
90
83
83
86
74
89
77
79
79
83
92
92
92
80
84
83
109
92
85
89
79
81
78
Shed
Date
Silk
Date
83
78
86
79
History
Zea mays subspecies parviglumis
Zea mays subspecies parviglumis
Derived from 16 line synthetic
Public inbred derived from SSS CO
Related to inbreds B14 and B73
Synthetic population that B73 was derived from
Public inbred derived from SSS cycle 5
Related to B73 and B37
B84 was derived from BS13(S2)C0
Public inbred derived from BS13(S2)C0
O.P. that C103 was derived from
Public inbred derived from C103 x 187-2
Related to Mo17
Public inbred derived from Oh40B x W8
Related to Oh43
Parent line of US 13 double cross
Parent line of US 13 double cross
Parent line of US 13 double cross
Parent line of US 13 double cross
Single cross parent of US 13 double cross
Single cross parent of US 13 double cross
Most popular hybrid of 1930's-1940's
Tropical GEM accession (with many traits)
50% Tropical Breeding Cross
25% Tropical Breeding Cross
S3 selection from entry 25
Top Cross of entry 26 to LH185
Popular hybrid from mid-1970's - 1980's
Medium maturity check hybrid
Comments
Developed in 1930's by Sprague
Released in 1953
Expired PVP
Released in 1972
Expired PVP
Released in 1979
Released in 1964
Expired PVP
Released in 1949
Expired PVP
Origin: Indiana 1936, Wilson Farm Reid Yell. Dent
Origin: Indiana 1930's, Reid Yell. Dent
Origin: Iowa, 1930's, Richey Lancaster
Origin: Illinois, 1930's, Illinois High Yield
Lines and Top Crosses
2006 Recommended line
Top Cross
Page 5 of 12
USDA ARS GEM
Field Day 2006
31
120
AR17056:N2035-473-001-B-B
AR17056:N2035-473-001xLH198
83
80
85
79
2006 Recommended line
Top Cross
32
119
BR52060:S0210-143-001-B-B
BR52060:S0210-143-001xLH185
85
77
89
79
2006 Recommended line
Top Cross
33
118
BR52060:S0210-147-001-B-B
BR52060:S0210-147-001xLH185
87
78
89
79
2006 Recommended line, 5.0% oil
Top Cross
34
117
MDI022:N2120-284-001-B-B
MDI022:N2120-284-001/LH200
86
82
87
84
2006 Recommended line
Top Cross
35
116
MDI022:N2120-333-001-B-B
MDI022:N2120-333-001xLH198
84
83
89
84
2006 Recommended line, Above average
methionine content
Top Cross
36
115
NEI9004:S2818-003-001-B-B
NEI9004:S2818-003-001xLH185
84
78
87
80
2006 Recommended line, 13.5% protein
Top Cross
37
114
NEI9004:S2818-025-001-B-B
NEI9004:S2818-025-001xLH185
84
79
87
79
2006 Recommended line, 13.7% protein
Top Cross
38
113
NEI9004:S2818-376-001-B-B
NEI9004:S2818-376-001xLH185
83
78
85
80
2006 Recommended line, 13.8% protein
Top Cross
39
112
UR05017:S0415-187-001-B
UR05017:S0415-187-001xLH185
87
76
89
79
2006 Recommended line, 13.1% protein
Top Cross
40
111
UR05017:S0415-180-002-B-B
UR05017:S0415-180-002xLH185
82
76
85
79
2006 Recommended line, 15.6% protein,
Fusarium resistant
Top Cross
41
110
BR51675:N0620-033-001-B-B
BR51675:N0620-033-001xLH198
81
80
82
79
2006 Recommended line, good Y/M ratio
Top Cross
42
109
BR51675:N0620-053-001-B-B
BR51675:N0620-053-001xLH198
82
77
82
77
2006 Recommended line
Top Cross
43
108
CH05015:N1204-057-001-B-B-B
CH05015:N1204-057-1-B/LH198
82
77
85
78
2005 Recommended line, 14.0% protein, 4.7%
oil
Top Cross
GEM homepage: www.public.iastate.edu/~usda-gem
Page 6 of 12
USDA ARS GEM
Field Day 2006
44
107
DKB844:S1601-003-002-B-B-B-B-B
DKB844:S1601-003-2-B-B/LH185
85
78
88
81
2005 Recommended line, 14.8% protein, and
low starch gelatinization temp
Top Cross
45
106
DKB844:S1601-073-001-B-B-B-B-B
DKB844:S1601-073-1-B-B/LH185
85
78
87
79
2005 Recommended line, low starch
gelatinization temperature
Top Cross
46
105
CHIS775:S1911b-120-001-B-B-B-B
CHIS775:S1911b-120-1-B-B/LH185
83
77
85
77
2005 Recommended line, starch thermal
properties research
Top Cross
47
104
AR17056:N2025-574-001-B-B-B-B
AR17056:N2025-574-1-B-B/LH198
82
76
84
77
Highly digestible starch, 65%, 16.3% protein
Top Cross
48
103
UR11003:S0302-1011-001-B-B-B
UR11003:S0302-1011-1-B/LH185
81
76
83
79
2005 Recommended line
Top Cross
49
102
FS8B(T):N11a-87-1-B-B-sib
FS8B(T):N11a-087-1-B/LH200
80
78
82
86
2004 Recommended line, good Y/M ratio
Top Cross
50
101
AR03056:N09-182-001-B-B-B-Sib-B
AR03056:N09-182-1-B-B x LH198
82
77
85
80
2004 Recommended line, good Y/M ratio
Top Cross
51
100
B73
LH198 x LH185
84
76
87
76
Medium maturity check inbred
Medium maturity check hybrid
52
99
7541-7-32-1-B-B-B-B_DKXL380 N11 F2S6
DKXL380 N11 F2S6 x (LH132 x LH195)
93
80
96
81
2006 Recommended line for South (NC State U)
Top Cross
53
98
1881-002/98_DKXL370AN11F2S3_7521-05-B
1881-002/98 x (FR992 x FR1064)
92
77
95
77
2005 Recommended line for South, 14.6%
protein (NC State U)
Top Cross
54
97
1883-002/98_DKXL370AN11F2S3_7521-05-B
1883-002/98 x (FR992 x FR1064)
91
80
95
81
2005 Recommended line for South (NC State U)
Top Cross
55
96
1886-003/98_DKXL370AN11F2S3_7521-05
1886-003/98 x (LH132 x LH195)
92
81
95
83
2005 Recommended line for South, 13.9%
protein (NC State U)
Top Cross
GEM homepage: www.public.iastate.edu/~usda-gem
Page 7 of 12
USDA ARS GEM
Field Day 2006
56
95
1895-001/98_DKXL370AN11F2S3_7521-29-B
1895-001/98 x HC33
87
77
91
80
2005 Recommended line for South, 13.8%
protein (NC State U)
Top Cross
57
94
2410-003/99_SCRGp3N14F2S3_7258-3-B
2410-003/99 x HC33
93
80
91
80
2005 Recommended line for South (NC State U)
Top Cross
58
93
GEMS-0016
GEMS-0016 x LH185
85
77
87
79
Gray leafspot resistant (NC State U/NCRPIS)
Top Cross
59
92
AR16035:S02-450-001-B-B-B-B-B-B
AR16035:S02-450-1-B-B/LH185
90
78
92
79
Orange endosperm for grain carotene research
Top Cross
60
91
DKXL212:N11a-139-001-001-B-B-B-B-B
DKXL212:N11a-139-001-001-B-B-B-B x LH119
86
78
88
81
Above average amino acid index (UDEL)
Top Cross
61
90
GEMS-0030
GEMS-0030 X LH283
95
81
97
83
Above average amino acid index (NC State
U/NCRPIS)
Top Cross
62
89
GEMS-0030
GEMS-0030 x LH123
92
81
95
83
Above average amino acid index (NC State
U/NCRPIS)
Top Cross
63
88
GEMS-0002
GEMS-0002 x LH185
80
77
83
77
Fusarium grain mold resistant (OH State
U/NCRPIS)
Top Cross
64
87
GEMS-0003
GEMS-0003 x LH283
87
82
90
83
Fusarium and fumonisin resistant (NC State
U/NCRPIS)
Top Cross
65
86
GEMS-0061
GEMS-0061 x LH185
84
77
87
81
Fusarium grain mold resistant, 4.7% oil, Public
Release NCRPIS
Top Cross
66
85
DE3
LH381 X DE3
81
81
82
85
Deriv DKXL212:N11a-191-1-1-1-1-1-1 (UDEL)
Top Cross
67
84
DE4
LH381 X DE4
83
81
85
83
Gray leafspot resistant (UDEL)
Top Cross
GEM homepage: www.public.iastate.edu/~usda-gem
Page 8 of 12
USDA ARS GEM
Field Day 2006
68
83
DKXL212:N11a-139-001-001-B-B-B-B-B
LH381 x DKXL212:N11a-139-001-001-B-B-B
84
82
87
86
Above average amino acid index (UDEL)
Top Cross
69
82
B73
LH200 x LH262
83
83
87
86
Medium maturity check inbred
Late maturity check hybrid
70
81
Tx204
LH200 x TX204
85
81
83
83
Drought and heat tolerant (Texas A&M)
Top Cross
Silking before anthesis
71
79
80
Tx205
B113 x Tx205
TX205 x LH200
85
78
81
84
80
83
Drought and heat tolerant (Texas A&M)
Top Cross
Top Cross
Silking before anthesis
Shed
Date
Silk
Date
81
80
77
79
79
81
81
83
81
83
80
80
79
85
Shed
Date
Silk
Date
80
77
77
77
77
78
76
78
80
81
76
76
77
77
81
79
78
77
77
79
79
80
81
84
77
79
79
79
Entry
72
73
74
75
76
77
78
Entry
122
123
124
125
126
127
128
129
130
131
132
133
134
135
Pedigree
NEI9004:S2818
MDI022:N2120
AR17056:N2035
DKB844:S1601
CH05015:N1204
UR13085:N0215
CHIS775:S1911b
Pedigree
CASH:N1410-025-001/HC33
CASH:N1410-018-001/HC33
HC33 x LH287
UR11003:S17a12-300-001/LH287
UR11003:S17a12-054-001/LH287
NEI9004:S2818-788-001/LH287
NEI9004:S2818-761-001/LH287
CUBA164:S2012-596-001/LH287
CUBA117:S1542-037-002/LH287
CUBA117:S1542-015-001/LH287
W605S x LH198
W605S x LH244
W605S x LH332
LH198 x AR01150:N0406-266
GEM homepage: www.public.iastate.edu/~usda-gem
Breeding Crosses
Origin:
Origin:
Origin:
Origin:
Origin:
Origin:
Origin:
Thailand Race: Suwan
Peru Race: Cuban Yellow Dent
Argentina Race: Cristalino Colorado
Mexico Race: Tropical Hybrid
Chile Race: Camelia
Uruguay Race: Cateto Sulino
Mexico Race: Tuxpeño
SS breeding cross
nSS breeding cross
nSS breeding cross
SS breeding cross
nSS breeding cross
nSS breeding cross
SS breeding cross
Re-Test Top Crosses
2006 Retests
2006 Retests
Medium maturity check hybrid
2006 Retests
2006 Retests
2006 Retests
2006 Retests
2006 Retests
2006 Retests
2006 Retests
Silage Top Cross (U WIS)
Silage Top Cross (U WIS)
Silage Top Cross (U WIS)
Anthracnose Resistant Top Cross (Cornell)
Page 9 of 12
USDA ARS GEM
Field Day 2006
136
137
LH198 x FS8B(T):N1802-212
LH198 x FS8B(T):N1802-215
77
77
78
79
Anthracnose Resistant Top Cross (Cornell)
Anthracnose Resistant Top Cross (Cornell)
138
CHIS740:S1411a-783-2-B-B ae x FS8B(T):N11a-322-1-B-B ae
79
83
Amylomaize VII Hybrid (Truman State U)
139
CUBA164:S1511b-325-1-B-B ae x DKXL370:N11a20-234-2B-B-B ae
81
81
Amylomaize VII Hybrid (Truman State U)
140
CUBA164:S2012-966-1-B-B ae x DKXL370:N11a20-199-2-BB-B ae
81
83
Amylomaize VII Hybrid (Truman State U)
Entry
Pedigree (PVP x Race)
Shed
Date
Silk
Date
Allelic Diversity Program
141
LH132:B-/CHANDELLE [CUB68]{CIMYT}-001
84
85
Origin: Lowland Cuba
142
143
144
145
146
147
148
149
150
LH132:B-/N DE T CALIENTE [GUA159]{CIMYT}-001
MBNA:B-1/GUIRUA [MAG469]{ICA}-001
LH39:B-/CANGUIL GRUESO [ECU447]{ICA}-001
LH74:B-/SAN MARCENO # [GUA724]{INIA}-001
LH74:B-/OLOTON [GUA383]{CIMYT}-001
LH74:B-/GORDO [CHH131]{CIMYT}-001
G39:B-/CONICO [PUE116]{CIMYT}-001
G39/(G39/CONICO [PUE116]{CIMYT})
B47:B-/CONICO [PUE116]{CIMYT}-001
84
93
74
93
93
73
81
82
79
92
104
77
97
96
76
84
84
83
Origin: Lowland Guatemala
Origin: Mid-Highland Columbia
Origin: Highland Guatemala
Origin: Highland Guatemala
Origin: Highland Guatemala
Origin: Highland Mexico
Origin: Highland Mexico
Origin: Highland Mexico
Origin: Highland Mexico
GEM homepage: www.public.iastate.edu/~usda-gem
Page 10 of 12
USDA ARS GEM
Field Day 2006
GEM Accessions 2006 Field Day
All Publicly Available from NCRPIS
Accession
PI Number
Country
Classification
Race or Source
Color/type
ARZM 01150
PI 491741
Argentina
Temperate
Dent. Blanco Rugoso
White dent
ARZM 03056
PI 491799
Argentina
Temperate
Dentado Blanco
White dent
ARZM 16026
PI 516027
Argentina
Temperate
Cristalino Colorado
Orange flint
ARZM 16035
PI 516036
Argentina
Temperate
Cristalino Colorado
Orange flint
ARZM 17026
PI 493012
Argentina
Temperate
Cristalino Colorado
Orange flint
ARZM 17056
PI 493039
Argentina
Temperate
Cristalino Colorado
Orange flint
BRA 051675 (PE 027)
PI 584913
Brazil
Tropical
Dente Amarelo
Yellow dent
BRA 052051 (SE 032)
PI 583917
Brazil
Tropical
Dente Amarelo
Yellow dent
BRA 052060 (SE 033)
PI 583918
Brazil
Tropical
Dente Amarelo
Yellow dent
Cash (Ohio)
PI 278710
USA
Temperate
Corn Belt Dent
Yellow dent
CHIS 740
PI 583890
Mexico
Tropical
Tuxpeño/Olotillo
White dent
CHIS 775
PI 576258
Mexico
Tropical
Tuxpeño
White dent
CHZM 05015
PI 467165
Chile
Temperate
Camelia
Orange flint
Cuba 117
PI 483816
Cuba
Tropical
Argentino
Orange flint
Cuba 164
PI 489361
Cuba
Tropical
Mixed (Creole)
Orange semi-flint
DK888
Ames 23669
Thailand
Tropical
Hybrid
Yellow
DKB844
Ames 23675
Mexico
Tropical
Hybrid
White
DKXL212
Ames 23673
Brazil
Tropical
Hybrid
Yellow
DKXL370A
Ames 23671
Brazil
Tropical
Hybrid
Yellow
DKXL380
Ames 23672
Brazil
Tropical
Hybrid
Yellow
FS8A(S) (Florida)
PI 536619
USA
Temperate
Mixed
Yellow semi-dent
FS8B(T) (Florida)
PI 536622
USA
Temperate
Mixed
Yellow semi-dent
Guatemala 209
PI 498583
Guatemala
Tropical
Tusón
Yellow flint
MDI022
PI 571994
Peru
Tropical
Cuban yellow
Yellow flint
NEI9004
Ames 26253
Thailand
Tropical
Suwan
Yellow flint
St. Croix Gp3
PI 504148
St. Croix
Tropical
Tusón
Yellow dent
URZM 05017
PI 583937
Uruguay
Temperate
Semidentado Riograndense
Orange semi-dent
URZM 11003
PI 583939
Uruguay
Temperate
Dente Branco
White dent
URZM 13085
PI 583927
Uruguay
Temperate
Cateto Sulino
Orange flint
GEM homepage: www.public.iastate.edu/~usda-gem
Page 11 of 12
USDA ARS GEM
Field Day 2006
Contact Information for Germplasm
I. Contact Information for GEM Germplasm Contributors for 2006 Field Day:
Mike Blanco (mblanco@iastate.edu)
GEM Project Coordinator
Mark Campbell (campbell@truman.edu)
Truman State University (Kirkville, MO)
James G. Coors (jgcoors@facstaff.wisc.edu)
University of Wisconsin
Major Goodman (goodman@unity.ncsu.edu)
North Carolina State University
Jim Hawk (jhawk@UDel.Edu)
University of Delaware
Margaret Smith (mes25@cornell.edu)
Cornell University
Wenwei Xu (we-xu@tamu.edu)
Texas A&M University
II. Web Sites for GEM germplasm & other information:
Germplasm Enhancement of Maize (GEM) at http://www.public.iastate.edu/~usda-gem
Germplasm Resources Information Network (GRIN) at http://www.ars-grin.gov
Inbred Lines: GEMS-0002, GEMS-0003, GEMS-0016, GEMS-0030, GEMS-0061, and other
public GEM releases
University of Wisconsin Silage Breeding at http://www.silagebreeding.agronomy.wisc.edu
W605S Inbred Line
University of Delaware Maize order forms at http://ag.udel.edu/plsc/research/MaizeResearch.htm
DE3 and DE4 Inbred Lines
Texas A&M University from Wenwei Xu (we-xu@tamu.edu)
Tx204 and Tx205 Inbred Lines
III. GEM Staff:
Mike Blanco, Mack Shen, Andy Smelser, Fred Engstrom, and Sue Duvick
IV. Acknowledgements:
Larry Lockhart, Program and Farm Manager
Mark Millard, Maize Curator
GEM homepage: www.public.iastate.edu/~usda-gem
Page 12 of 12