Germplasm Enhancement of Maize
2014 GEM Midwest
Trial Results & New
Releases
C. Gardner, F. Engstrom, M. Peters, M. Shen
USDA-ARS NCRPIS GEM
- December 10, 2014
Germplasm Enhancement of Maize
Commercial Checks 2014
Hybrid
Midwest RM
HC33xLH287
109
Pioneer 34R65
109
MBS3520
105-115 hybrids
MBS8814
107-117 hybrids
MBS3520/MBS8814
112
Pioneer 33F85
114
LH200xLH262
118
Pioneer 31D58
119
2015 GEM Releases from Ames
GEM Code
GEMN-0260
GEMN-0261
GEMS-0262
GEMS-0263
Pedigree
Race
(GEMN-0140/GEMN-0097)-B-B026-B-B
Dente Amarillo/FS8BT
(GEMN-0140/GEMN-0097)-B-B027-B-B
Dente Amarillo/FS8BT
(GEMS-0147/GEMS-0180)-B104-001-B-B
Suwan/Tusón
BR105:S1626(GEMS-0175)-B049-B-B
Composite Suwan/Tusón
GEMS-0264 BR105:S1643-078-001-B-B
Composite Suwan
Type
Het Grp
12.5% Tropical
NS
12.5% Tropical
NS
12.5% Tropical
SS
12.5% Tropical
SS
25% Tropical
SS
GEMS-0265 DKXL212:S0950-B-083-B-B
Hybrid Tropical
25% Tropical
NEI9008:N0826(GEMN-0155)GEMN-0266 B-074-B-B
Suwan/Cristalino Colorado 12.5% Tropical
NEI9008:N0826(GEMN-0155)GEMN-0267 B-095-B-B
Suwan/Cristalino Colorado 12.5% Tropical
SS
NS
GEMS-0268 NS1:S0852-B-021-B-B
Suwan
25% Tropical
SS
GEMS-0269 NS1:S0852-B-054-B-B
Suwan
25% Tropical
SS
NS
Germplasm Enhancement of Maize
GEMN-0260
(GEMN-0140/GEMN-0097)-B-B-026
145402 Tester: HC33
GEM
Code Pedigree
(GEMNGEMN- 0140/GEMN0260 0097)-B-B-026
145403 Tester: MBS3520
%
Yiel Yd %
Yield % Y/ TW % % En d /CH Mois Y/
% %
Ent B/A Moist M T SL RL t B/A K
t M TWT SL RL
17 183 20.0 9.1 55.0 1.2 7.8
3 161 89.2 18.5 8.8 53.5 2.4 3.0
Test Entry Means
157
19.2 8.2 55.9 2.4 4.4
161
20.4 7.9 54.2 3.1 9.7
Check Means
191
21.1 9.0 55.9 2.4 7.0
181
21.8 8.3 55.2 1.9 4.9
Overall Means
161
19.5 8.3 55.9 2.4 4.7
164
20.6 8.0 54.4 3.0 9.0
CV
14
7.0
13
6.6
F-value
5.0
7.2
3
6.0
LSD (p=0.05)
26.4
1.6
23
1.5
Germplasm Enhancement of Maize
GEMN-0261
(GEMN-0140/GEMN-0097)-B-B-027
145402 Tester: HC33
Pedigree
%
Yield Mois
% %
Ent B/A
t Y/M TWT SL RL
(GEMN-0140/GEMN0097)-B-B-027
16 175 19.4 9.0 55.0 0.4 2.2
145403
Tester: MBS3520
%
Yield Mois
% %
Ent B/A
t Y/M TWT SL RL
4
183 20.0 9.2 53.9 1.9 21.2
Test Entry Means
157 19.2 8.2 55.9 2.4 4.4
161 20.4 7.9 54.2 3.1 9.7
Check Means
191 21.1 9.0 55.9 2.4 7.0
181 21.8 8.3 55.2 1.9 4.9
Overall Means
161 19.5 8.3 55.9 2.4 4.7
164 20.6 8.0 54.4 3.0 9.0
CV
14.2
7.0
13.1 6.6
F-value
5.0
7.2
3.0
LSD (p=0.05)
26.4
1.6
23.6 1.5
6.0
Germplasm Enhancement of Maize
GEMS-0262
(GEMS-0147/GEMS-0180)-B-104-001
145401 Tester: LH287
Pedigree
(GEMS0147/GEMS-0180)B-104-001
145404 Tester MBS8814
Yield %
Yield %
%
Ent B/A Moist Y/M TWT % SL % RL Ent B/A Moist Y/M TWT SL % RL
29 202
24.0
8.5 52.6 0.8 8.1
Test Entry Means
179
23.2
Check Means
194
Overall Means
12
198
25.1 7.9 51.6 0.6
3.9
7.7 53.3 3.5 10.8
183
23.3 7.9 53.7 1.4
4.9
22.2
8.8 55.9 1.4 5.1
196
22.6 8.7 55.3 1.8 10.1
180
23.1
7.8 53.6 3.3 10.2
184
23.2 8.0 53.9 1.4
CV
9.3
4.3
10.8
6.3
F-value
3.2
10.4
2.2
5.4
LSD (p=0.05)
20.4
1.2
21.5
1.6
5.4
Germplasm Enhancement of Maize
GEMS-0263
BR105:S1626(GEMS-0175)-B-049
121403 Tester: MBS9508
Pedigree
En Yield %
%
t B/A Moist Y/M TWT % SL RL
BR105:S1626(GE
MS-0175)-B-049 43 158 21.4 7.4 58.8 0.4 8.1
141408 Tester: LH287
Yield
%
% %
Ent B/A Moist Y/M TWT SL RL
14
202
24.6
8.2 53.4 2.1 4.3
Test Entry Means
135 22.0 6.2 58.2 4.6 10.3
186
23.3
8.0 53.4 1.9 7.8
Check Means
134 21.5 6.3 56.9 1.0 8.5
198
22.1
9.0 56.3 1.6 2.9
Overall Means
CV
23.2
4.3
8.1 53.7 1.9 7.4
15.7 4.3
187
9.2
F-value
1.5
8.3
2.8
15.3
LSD (p=0.05)
30.4 1.3
17.2
1.0
Germplasm Enhancement of Maize
GEMS-0264
BR105:S1643-078-001
121304 Tester: AGR-nSS
141408 Tester: LH287
Yield %
Ent B/A Moist Y/M TWT % SL % RL
Yield %
Ent B/A Moist Y/M TWT % SL % RL
43 169.2 20.5 8.3 56.3 0.0 9.4
36 204.3 24.7 8.3 52.4 1.4 7.9
Test Entry Means
151.5 21.1 7.2 55.6 1.0 7.9
186.2 23.3 8.0 53.4 1.9 7.8
Check Means
162.1 19.6 8.3 56.2 0.2 3.3
198.9 22.1 9.0 56.3 1.6 2.9
Pedigree
BR105:S1643-078001
Overall Means
187.3 23.2 8.1 53.7 1.9 7.4
CV
15.1 6.9
9.2
4.3
F-value
2.4
4.1
2.8 15.3
LSD (p=0.05)
29.7 1.8
17.2 1.0
Germplasm Enhancement of Maize
GEMS-0265
DKXL212:S0950-B-083
Pedigree
141408 Tester: LH287
141413 Tester: MBS8814
Yield %
Ent B/A Moist Y/M TWT % SL % RL
Yield %
Ent B/A Moist Y/M TWT % SL % RL
DKXL212:S0950-B083
32 196
22.3
8.8 54.7 1.2 2.6
32 189 22.8 8.3 52.4 1.4 0.5
Test Entry Means
186
23.3
8.0 53.4 1.9 7.8
180 22.7 8.0 51.9 1.3 4.0
Check Means
198
22.1
9.0 56.3 1.6 2.9
186 21.4 8.7 54.1 1.7 2.7
Overall Means
187
23.2
8.1 53.7 1.9 7.4
181 22.6 8.0 52.1 1.3 3.9
CV
9.2
4.3
8.2
5.7
F-value
2.8
15.3
3.2
10.5
LSD (p=0.05)
17.2
1.0
14.9
1.3
Germplasm Enhancement of Maize
GEMN-0266
NEI9008:N0826(GEMN-0155)-B-074
141411 Tester: HC33
141412 Tester: MBS3520
Yield %
% %
Yield %
%
Pedigree
Ent B/A Moist Y/M TWT SL RL Ent B/A Moist Y/M TWT SL % RL
NEI9008:N0826(GEMN13.
0155)-B-074
13 179 20.3 8.9 54.3 3.3 3 11 201 24.2 8.3 53.4 1.8 9.8
Test Entry Means
156 19.8 7.9 54.9 3.7 6.0
172 22.3 7.7 53.9 2.0 9.0
Check Means
170 20.2 8.4 55.3 1.5 4.1
186 21.9 8.5 55.1 1.1 3.7
Overall Means
157 19.9 7.9 55.0 3.4 5.7
174 22.3 7.8 54.1 1.9 8.4
CV
9.9
5.1
11.6 6.2
F-value
4.3 14.9
4.6 14.2
LSD (p=0.05)
16.8 1.1
20.9 1.4
Germplasm Enhancement of Maize
GEMN-0267
NEI9008:N0826(GEMN-0155)-B-095
141411 Tester: HC33
141412 Tester: MBS3520
Yield %
% %
Ent B/A Moist Y/M TWT SL RL
%
Yield Mois
% %
Ent B/A t Y/M TWT SL RL
16 177 19.7 9.0 54.6 6.3 7.8
14 196 21.1 9.3 53.3 4.0 8.2
Test Entry Means
156 19.8 7.9 54.9 3.7 6.0
172 22.3 7.7 53.9 2.0 9.0
Check Means
170 20.2 8.4 55.3 1.5 4.1
186 21.9 8.5 55.1 1.1 3.7
Overall Means
157 19.9 7.9 55.0 3.4 5.7
174 22.3 7.8 54.1 1.9 8.4
CV
9.9
5.1
11.6 6.2
F-value
4.3
14.9
4.6 14.2
LSD (p=0.05)
16.8
1.1
20.9 1.4
Pedigree
NEI9008:N0826(GEMN0155)-B-095
GEMS-0268
NS1:S0852-B-021
121307 Tester: MON-nSS
Pedigree
Yield %
% %
Ent B/A Moist Y/M TWT SL RL
141413 Tester: MBS8814
Yield %
TW %
Ent B/A Moist Y/M T SL
%
RL
NS1:S0852-B-021 19
175
20.5
8.6 56.3 5.7 3.5
16 205 23.8
8.7 49.1 3.2 11.5
Test Entry Means
143
18.9
7.6 58.1 16.6 0.5
180 22.7
8.0 51.9 1.3 4.0
Check Means
154
20.9
7.4 58.2 3.5 0.2
186 21.4
8.7 54.1 1.7 2.7
181 22.6
8.0 52.1 1.3 3.9
Overall Means
CV
14.8
6.9
8.2
5.7
F-value
1.5
4.9
3.2 10.5
LSD (p=0.05)
29.7
2.0
14.9 1.3
Germplasm Enhancement of Maize
GEMS-0269
NS1:S0852-B-054
141408 Tester: LH287
141413 Tester: MBS8814
Yield %
Ent B/A Moist Y/M TWT % SL % RL
Yield %
Ent B/A Moist Y/M TWT % SL % RL
21 187.6 22.2 8.6 52.5 2.1 9.65
21 197.2 21.9 9.0 51.7 0.9 9.5
Test Entry
Means
186.2 23.3 8.0 53.4 1.9 7.8
180.5 22.7 8.0 51.9 1.3 4.0
Check Means
198.9 22.1 9.0 56.3 1.6 2.9
186.1 21.4 8.7 54.1 1.7 2.7
Overall Means
187.3 23.2 8.1 53.7 1.9 7.4
181.0 22.6 8.0 52.1 1.3 3.9
Pedigree
NS1:S0852-B054
CV
9.2
4.3
8.2
5.7
F-value
2.8
15.3
3.2
10.5
LSD (p=0.05)
17.2
1.0
14.9
1.3
Top Cross
Estimated Relative Maturity
Average
GEM Code Pedigree
(GEMN-0140/GEMN-0097)-BGEMN-0260 B-026
(GEMN-0140/GEMN-0097)-BGEMN-0261 B-027
(GEMS-0147/GEMS-0180)-BGEMS-0262 104-001
BR105:S1626(GEMS-0175)-BGEMS-0263 049
Ear
Estimated Height
RM
(cm)
110
110
110
Hybrid Checks
Ear
Estimated Height
RM
(cm)
109
110
90
HC33xLH287
MBS3633xMBS8
814
113
125
119
100
LH200xLH262
118
140
116
110
34R65
~109
105
GEMS-0264 BR105:S1643-078-001
116
110
33F85
~114
110
GEMS-0265 DKXL212:S0950-B-083
NEI9008:N0826(GEMN-0155)GEMN-0266 B-074
NEI9008:N0826(GEMN-0155)GEMN-0267 B-095
116
110
31D58
~119
100
116
130
115
120
GEMS-0268 NS1:S0852-B-021
118
115
GEMS-0269 NS1:S0852-B-054
113
95
Germplasm Enhancement of Maize
GLS & Goss’s Wilt
Above Average Resistance
GLS
Goss’s Wilt
GEMS-0263
GEMS-0269
GEMS-0265
2nd Goss’s Release
GEMS-0268
34 Lines All Years
Based on ratings from J. Dodd, PSR
Germplasm Enhancement of Maize
FUSER & Head Smut
Above Average Resistance
FUSER
Head Smut
GEMS-0264
GEMS-0264
GEMN-0266
GEMS-0268
GEMN-0267
39 Lines All Years
47 Lines All Years
Based on ratings from M. Mancl, DuPont Pioneer (Woodland, CA)
Germplasm Enhancement of Maize
Southern Leaf Blight Resistance
(SLB)
Above Average Resistance
GEMS-0223
GEMN-0239
87 Lines All Years
Based on ratings from P. Balint-Kurti, USDA-ARS PSRU
Questions?
Thanks to all Germplasm Enhancement
Cooperators for their contributions and
efforts. We sincerely hope that your role in
the GEM Project has a positive impact on
your program.
Please share your thoughts and ideas as to
how GEM can better accomplish diversifying
the genetic base of corn production and
reduce crop vulnerability.
Thoughts as GEM transitions
•New GEM Coordinator/Maize Geneticist needed in Ames
•Experience with and passion for germplasm introgression
•Superior communication and collaborative skills
•Skill in use of statistical and IM tools relevant to plant breeding
•Staff needs better analytical tools and to import data into database
more readily.
•Germplasm performance information needs to be publicly
accessible via a database to supports user queries and information
retrieval. Update as data becomes available.
•GEM needs to leverage US and international network capacities to
better evaluate and characterize germplasm in order to deploy
appropriate genetic resources to address production challenges.
Thoughts continued…
*Cycle time must be reduced. This requires more resources ,
either internal or via collabors.
*Germplasm Access is becoming more challenging not less.
Need to access unencumbered, valuable germplasm.
*Phytosanitary requirements for germplasm exchange are
becoming more rigorous and more testing is required.
*AP testing and declarations may be required for exchange.
* Technical and managerial skills required for project
execution are every bit as rigorous as for a commercial
breeder but performed in an environment that is both federal
and academic.
Best wishes to all in 2015!