1. 2013 GEM Midwest Trial Results & New Releases
Germplasm Enhancement of Maize
M. Blanco, F. Engstrom, M. Shen
USDA-ARS NCRPIS GEM
- December 11, 2013-

2. Commercial Checks 2013 Germplasm Enhancement of Maize Hybrid
Midwest RM
HC33xLH287
~109
Pioneer 34R65
109
MBS3633xMBS8814
113
Pioneer 33F85
114
LH200xLH262
~118
Pioneer 31D58
119
Germplasm Enhancement of Maize
Estimated Maturity Rank (Earliest to Latest)

3. GEMN-0246 AR01150:N0402-B-026 Germplasm Enhancement of Maize
Tester: HC33 (4 Reps)
Tester: MBS3633 (8 Reps)
Pedigree
Entry
Yield B/A
% Moist
Y/M
TWT
% S.L.
% R.L.
AR01150:N0402-B-026 24
151.8
15.6
9.7
58.9
7.4
26.6 26
157.1
17.3
9.2
55.2
0.5
1.0
Check Means
161.4
19.7
8.2
58.1
9.6
24.8
163.7
19.4
8.4
56.7
1.7
4.5 CV
19.1
5.2
14.4
6.5
LSD (p=0.05)
36.4
1.4
26.2
Germplasm Enhancement of Maize
See GEM Releases, Page 2

4. GEMN-0247 AR03056:N0902-064-001 Germplasm Enhancement of Maize
Tester: HC33 (3 Reps)
Tester: MBS3633 (8 Reps)
Pedigree
Entry
Yield B/A
% Moist
Y/M
TWT
% S.L.
% R.L.
AR03056:N 26
176.7
18.8
9.4
55.9
4.8
6.4 35
180.8
19.2
55.1
3.2
5.1
Check Means
173.1
9.0
58.3
6.5
8.4
163.7
19.4
56.7
1.7
4.5 CV
12.7
6.2
14.4
LSD (p=0.05)
31.4
1.8
26.2
1.4
Germplasm Enhancement of Maize
See GEM Releases, Page 2

5. GEMN-0248 AR16042:S2028-B-012 Germplasm Enhancement of Maize
Tester: LH287 (5 Reps)
Tester: MBS8814 (6 Reps)
Pedigree
Entry
Yield B/A
% Moist
Y/M
TWT
% S.L.
% R.L.
AR16042:S2028-B-012 11
187.0
21.2
8.8
55.2
4.9
40.6 6
203.6
23.2
54.2
0.5
5.3
Check Means
182.0
20.5
8.9
56.9
4.1
32.5
189.0
21.5
56.6
5.2 CV
17.3
5.4
11.6
5.8
LSD (p=0.05)
35.8
1.4
25.2
1.5
Germplasm Enhancement of Maize
See GEM Releases, Page 3

6. GEMS-0249 BR105:N1643-B-020 Germplasm Enhancement of Maize
Tester: DAS-SS (5 Reps)
Tester: MBS3633 (8 Reps)
Pedigree
Entry
Yield B/A
% Moist
Y/M
TWT
% S.L.
% R.L.
BR105:N1643-B-020 35
176.6
19.7
8.9
57.8
2.4
11.5 40
181.9
20.0
9.1
56.8
2.6
4.5
Check Means
168.3
19.0
58.8
2.8
163.7
19.4
8.4
56.7
1.7 CV
12.7
7.9
14.4
6.5
LSD (p=0.05)
25.4
2.0
26.2
1.4
Germplasm Enhancement of Maize
See GEM Releases, Page 3

7. GEMS-0250 CL-G1703:S17c43-B-023-B-B Germplasm Enhancement of Maize
Tester: LH287 (5 Reps)
Tester: MBS8814 (6 Reps)
Pedigree
Entry
Yield B/A
% Moist
Y/M
TWT
% S.L.
% R.L.
CL-G1703:S17c43-B-023 20
171.6
22.1
7.8
54.5
8.2
35.9 17
189.0
24.7
52.2
0.0
2.3
Check Means
159.4
19.1
8.3
57.5
11.7
18.8
21.5
8.8
56.6
0.5
5.2 CV
14.1
5.9
11.6
5.8
LSD (p=0.05)
27.4
1.5
25.2
Germplasm Enhancement of Maize
See GEM Releases, Page 4

8. GEMS-0251 CL-G1703:S17c43-B-026-B-B Germplasm Enhancement of Maize
Tester: LH287 (5 Reps)
Tester: MBS8814 (6 Reps)
Pedigree
Entry
Yield B/A
% Moist
Y/M
TWT
% S.L.
% R.L.
CL-G1703:S17c43-B-026 23
178.2
21.5
8.3
55.0
11.6
33.4 18
184.8
26.7
7.0
52.3
0.4
1.7
Check Means
159.4
19.1
57.5
11.7
18.8
189.0
8.8
56.6
0.5
5.2 CV
14.1
5.9
5.8
LSD (p=0.05)
27.4
1.5
25.2
Germplasm Enhancement of Maize
See GEM Releases, Page 4

9. GEMS-0252 DKB844:N11b18-241-001-B-B Germplasm Enhancement of Maize
Tester SYG-SS (4 Reps)
Tester: MBS3633 (8 Reps)
Pedigree
Entry
Yield B/A
% Moist
Y/M
TWT
% S.L.
% R.L.
DKB844:N11b B 68
173.3
14.0
12.4
61.2 62
176.6
19.6
9.0
56.7
1.4
3.9
Check Means
165.2
14.1
11.7
60.3
163.7
19.4
8.4
1.7
4.5 CV
13.7
5.6
14.4
6.5
LSD (p=0.05)
31.4
1.2
26.2
Germplasm Enhancement of Maize
See GEM Releases, Page 4

10. Top Cross Estimated Relative Maturity
x LH287
x MBS8814
x HC33
x MBS3633
Estimated
GEM Code
Pedigree RM
GEMN-0246
AR01150:N0402-B-026 -
107
109
GEMN-0247
AR03056:N B-B
112
114
GEMS-0248
AR16042:S2028-B-012-B-B
116
GEMN-0249
BR105:N1643-B-020-B-B
111
GEMS-0250
CL-G1703:S17c43-B-023-B-B
115
118
GEMS-0251
CL-G1703:S17c43-B-026-B-B
120
GEMN-0252
DKB844:N11b B-B
Germplasm Enhancement of Maize
See GEM Releases, Page 1

11. GEM Releases in Breeding Cross from Yield Trial Experiments (NSS)
NSS GEM Lines
Number of Experiments
Number Above Check Mean
GEMN-0097 (N99z) 5 44
GEMN-0128 1 15
GEMN-0178 (N99bq)
GEMN-0156 (N99ak) & GEMN-0174 (N99af) 2
GEMN-0179 (N99ae) & GEMN-0155 (N99ai)
Total 61

12. Number Above Check Mean
GEM Releases in Breeding Crosses from First Year Yield Trial Experiments (SS)
 SS GEM Lines
Number of Experiments
Number Above Check Mean
GEMS-0115 (S99z) 3 41
GEMS-0115 & GEMS-0181 1 6
GEMS-0162 (S99ah) 26
GEMS-0175 (S99aj) x GEMS-0184 20
Total 93

13. New Waxy GEM Conversions
GEMN-0082
GEMN-0097
GEMS-0113
GEMS-0115
GEMN-0156
GEMN-0157
GEMS-0161
Germplasm Enhancement of Maize
Conversions made by Ingredion, Inc. (In kind support)

14. Above Average Resistance
GLS & Goss’s Wilt
Above Average Resistance
GLS
GEMN-0209
GEMN-0210
GEMN-0214
GEMS-0215
GEMN-0216
Goss’s Wilt
GEMS-0219
Germplasm Enhancement of Maize
1st Goss’s Release
31 Lines All Years
Based on ratings from J. Dodd, PSR

15. Above Average Resistance
FUSER & Head Smut
Above Average Resistance
Germplasm Enhancement of Maize
FUSER
GEMN-0209
Head Smut
GEMN-0192
GEMS-0219
36 Lines All Years
45 Lines All Years
Based on ratings from M. Mancl, DuPont Pioneer (Woodland, CA)

16. Southern Leaf Blight Resistance (SLB)
Above Average Resistance
GEMS-0223
GEMN-0239
Germplasm Enhancement of Maize
87 Lines All Years
Based on ratings from P. Balint-Kurti, USDA-ARS PSRU

17. Questions?