The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 707
October 2006
Silage Test Results
Summary of Evaluations of Corn Hybrids for Silage
Blairsville, Calhoun, Griffin, and Tifton, Georgia, 2006
Company or
Brand Name
Hybrid
Name
Quality Factors1
Milk Production2
lbs/ton
Grain
lbs/acre Portion
DM
%
Dry Matter Yield
Statewide
Average Blairsville Calhoun Griffin Tifton
----------------------- tons/acre ----------------------
Short -Season
AgraTech
AgraTech
DeKalb
DeKalb
DeKalb
707RR
760RR
DKC61-45(RR2/YGCB)
DKC61-72(RR2)
DKC63-81(RR2/YGCB)
2839
2703
.
.
.
38942
35997
.3
.3
.3
53
54
58
54
50
10.4
.
.
.
.
10.2
.
.
.
.
9.4
.
8.2
8.3
8.2
8.2
.
.
.
.
13.7
13.4
.
.
.
DeKalb
Mycogen
Mycogen
NK
Pioneer
DKC64-81(YGCB)
2T780
TMF2Q731
1851W
33V15
.
2535
2967
3051
2844
.3
32824
36969
42110
37866
53
54
49
49
52
.
11.5
.
11.0
10.4
.
14.0
.
11.5
11.7
8.4
10.1
.
10.5
8.5
.
8.0
9.1
7.8
7.8
.
13.8
12.7
14.1
13.4
2823
37451
53
10.8
11.8
9.0
8.2
13.5
Average
Mid-Season
AgraTech
AgraTech
Croplan Genetics
Croplan Genetics
Croplan Genetics
1021RR
999aRR
751RR2/BT
823 HX/LL
851RR2/BT
3134
2885
2954
2431
2794
47660
43391
40320
33883
40633
42
44
54
48
52
11.3
.
.
10.8
.
11.5
.
.
12.3
.
10.7
.
.
8.8
.
7.7
.
.
9.1
.
15.2
14.7
13.7
13.1
14.5
Croplan Genetics
DeKalb
DeKalb
DeKalb
DeKalb
DS 822 RR2/BT
DKC66-23(RR2/YGCB)
DKC67-23(RR2/YGCB)
DKC67-60(RR2)
DKC69-68(RR2/YGRW)
2784
2738
2762
2745
2448
36689
40520
39089
35257
33518
54
54
54
51
51
10.5
.
.
.
.
10.6
12.1
.
.
.
9.8
9.3
.
.
.
8.0
.
.
.
.
13.5
13.5
13.3
13.0
13.6
DeKalb
DeKalb
DynaGro
Garst
Garst
DKC69-71(RR2/YGCB)
DKC69-72(RR2)
58K40
8225YG1/RR
8248RR
2123
2767
2778
2797
3136
33424
42194
42397
37006
40241
51
52
49
54
54
.
.
11.1
10.2
.
13.4
.
11.0
11.0
.
8.3
.
9.6
9.2
.
.
.
9.0
7.0
.
15.4
13.0
14.9
13.6
13.0
Golden Acres
Greenwood
Hytest
Hytest
Hytest
2841RRB
780
7813 HX/LL
7891RR2/BT
7924RR2/BT
2726
2347
2572
2435
2618
42536
32758
42209
38942
38089
52
50
46
51
50
10.9
9.9
.
.
10.2
10.9
10.4
.
.
10.9
9.5
9.5
.
.
8.9
8.9
5.7
.
.
7.8
14.6
14.0
15.9
14.7
13.1
Pioneer
Pioneer
Southern States
31R87
31Y43
SS842RR2/YGCB
3033
2817
2827
45803
39882
43686
52
54
54
11.5
10.1
11.6
13.5
11.8
12.0
9.1
7.9
9.5
8.6
6.5
9.8
14.9
14.4
15.2
2724
39571
51
10.7
11.6
9.2
8.0
14.1
2744 4
313
129
39132 5
6539
2687
51
2
1
10.8 6
0.6
0.8
11.7
1.6
0.7
9.1
1.0
0.4
8.1
1.2
0.5
14.0
1.4
0.6
Average
Overall test averages and statistics:
Average
LSD at 10% Level
Std. Err. of Entry Mean
Summary of Evaluations of Corn Hybrids for Silage
Blairsville, Calhoun, Griffin, and Tifton, Georgia, 2006 (Continued)
1. Quality factors taken from the replicated silage trial at Tifton.
2. This variable is calculated using University of Wisconsin Corn Silage Evaluation System - Milk 2000 and reported at
lbs milk/ton of dry matter (DM) and lbs milk/acre.
3. Seed was not received before planting of Tifton test.
4. CV = 6.7%, and df for EMS = 28.
5. CV = 9.8%, and df for EMS = 28.
6. CV = 10.0%, and df for EMS = 168.
Bolding indicates entries performing equally to highest performing entry within a column based on Fisher's protected
LSD (P = 0.10).
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 707
October 2006
Tifton, Georgia:
Evaluation of Corn Hybrids for Silage, 2006, Irrigated
Company or
Brand Name
Dry
Matter
%
Grain
Portion
%
Plant
Pop.1
no.
2-Yr Avg
Dry Forage
Yield
tons/acre
32.2
30.3
28.5
26.1
28.0
44.1
45.6
48.3
51.3
47.9
49
54
53
52
54
.
.
.
.
.
12.4
11.5
.
11.9
.
12.7
25.8
49.2
49
.
.
13.5
28.5
47.7
52
.
11.9
Hybrid
Name
Forage Yield
Dry
Green
tons/acre
NK
Mycogen
AgraTech
Pioneer
AgraTech
1851W
2T780
707RR
33V15
760RR
14.2
13.8
13.7
13.4
13.3
Mycogen
TMF2Q731
Short-Season
Average
Mid-Season
Hytest
DeKalb
Southern States
AgraTech
Pioneer
7813 HX/LL
DKC69-71(RR2/YGCB)
SS842RR2/YGCB
1021RR
31R87
15.9
15.4
15.2
15.2
14.9
34.4
34.0
34.4
38.0
35.1
46.5
45.3
44.5
40.0
42.5
46
51
54
42
52
.
.
.
.
.
.
13.3
.
13.4
12.7
DynaGro
Hytest
AgraTech
Golden Acres
Croplan Genetics
58K40
7891RR2/BT
999aRR
2841RRB
851RR2/BT
14.9
14.7
14.7
14.6
14.5
32.2
34.5
34.7
34.6
33.5
46.3
42.6
42.3
42.3
43.2
49
51
44
52
52
.
.
.
.
.
12.9
13.0
13.2
.
.
Pioneer
Greenwood
Croplan Genetics
Garst
DeKalb
31Y43
780
751RR2/BT
8225YG1/RR
DKC69-68(RR2/YGRW)
14.5
14.1
13.7
13.6
13.6
33.6
30.0
30.6
31.3
29.7
43.0
46.9
44.8
43.5
45.6
54
50
54
54
51
.
.
.
.
.
12.3
12.0
.
.
.
Croplan Genetics
DeKalb
DeKalb
Hytest
Croplan Genetics
DS 822 RR2/BT
DKC66-23(RR2/YGCB)
DKC67-23(RR2/YGCB)
7924RR2/BT
823 HX/LL
13.5
13.4
13.3
13.1
13.1
31.0
28.3
28.3
32.1
28.9
43.5
47.5
47.0
41.4
45.5
54
54
54
50
48
.
.
.
.
.
11.8
.
.
11.5
.
DeKalb
DeKalb
Garst
DKC67-60(RR2)
DKC69-72(RR2)
8248RR
13.0
13.0
13.0
30.2
27.3
29.3
43.2
47.5
44.3
51
52
54
.
.
.
11.7
11.8
.
14.1
32.0
44.3
51
14.0 2
31.3 3
45.0
51
1.4
0.6
2.9
1.2
3.0
1.3
2
1
Average
12.5
Overall test averages and statistics:
Average
LSD at 10% Level
Std. Err. of Entry Mean
.
12.3
N.S.4
0.6
Tifton, Georgia:
Evaluation of Corn Hybrids for Silage, 2006, Irrigated
(Continued)
1.
2.
3.
4.
Plant population: 31,396 plants/acre.
CV = 8.4%, and df for EMS = 84.
CV = 7.9%, and df for EMS = 84.
The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was
not calculated.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
March 21, 2006.
Harvested:
July 20, 2006.
Seeding Rate:
32,000 seeds/acre in 30" rows.
Soil Type:
Tifton loamy sand.
Soil Test:
P = Medium, K = Medium, and pH = 5.9.
Fertilization:
111 lb N, 190 lb P2O5, and 234 lb K2O/acre as preplant; 252 lb N/acre as sidedress.
Previous Crop:
Soybean.
Management:
Subsoiled & bedded and rototilled; Prowl, Atrazine, Permit, and Accent used for weed control;
Telone II used for nematode control; irrigated 7.0 inches.
Test conducted by A. E. Coy, R. Brooke, and R. Jackson.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 707
October 2006
Griffin, Georgia:
Evaluation of Corn Hybrids for Silage, 2006, Irrigated
Company or
Brand Name
Hybrid
Name
Forage Yield
Dry
Green
tons/acre
TMF2Q731
707RR
2T780
33V15
1851W
9.1
8.2
8.0
7.8
7.8
2-Yr Avg
Dry Forage
Plant
Population
Yield
no.
tons/acre
Dry
Matter
%
Grain
Portion
%
24.8
23.8
25.0
20.6
23.9
36.5
34.3
32.1
38.2
32.5
37
38
41
40
37
.
.
.
.
.
.
.
8.2
8.4
7.8
8.2
23.6
34.7
39
.
8.1
Short-Season
Mycogen
AgraTech
Mycogen
Pioneer
NK
Average
Mid-Season
Southern States
Croplan Genetics
DynaGro
Golden Acres
Pioneer
SS842RR2/YGCB
823 HX/LL
58K40
2841RRB
31R87
9.8
9.1
9.0
8.9
8.6
27.6
26.4
27.1
28.1
25.4
35.3
34.5
33.2
31.6
33.9
46
43
39
43
42
.
.
.
.
.
.
.
.
.
9.9
Croplan Genetics
Hytest
AgraTech
Garst
Pioneer
DS 822 RR2/BT
7924RR2/BT
1021RR
8225YG1/RR
31Y43
8.0
7.8
7.7
7.0
6.5
25.4
24.0
25.0
22.7
22.7
31.4
32.4
30.7
30.7
28.4
44
35
34
46
40
.
.
.
.
.
9.1
8.6
.
.
8.2
Greenwood
780
5.7
16.0
35.8
37
.
8.6
8.0
24.6
32.5
41
.
8.9
Average
8.1 1
24.3 2
33.2
40
.
LSD at 10% Level
Std. Err. of Entry Mean
1.2
0.5
3.2
1.3
2.9
1.2
6
2
8.6
N.S.3
0.5
Average
Overall test averages and statistics:
1. CV = 13.2%, and df for EMS = 45.
2. CV = 11.1%, and df for EMS = 45.
3. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was
not calculated.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
April 3, 2006.
Harvested:
August 7, 2006.
Seeding Rate:
31,000 seeds/acre in 30" rows.
Soil Type:
Cecil sandy clay loam.
Soil Test:
P = High, K = High, and pH = 5.6.
Fertilization:
75 lb N, 100 lb P2O5, and 150 lb K2O/acre as preplant; 200 lb N/acre as sidedress.
Previous Crop:
Wheat.
Management:
Moldboard plowed, disked, rototilled; Atrazine and Lasso used for weed control;
irrigated 3.0 inches.
Test conducted by P. A. Rose.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 707
October 2006
Calhoun, Georgia:
Evaluation of Corn Hybrids for Silage, 2006, Irrigated
Company or
Brand Name
Hybrid
Name
Forage Yield
Dry
Green
tons/acre
NK
Mycogen
AgraTech
Pioneer
DeKalb
1851W
2T780
707RR
33V15
DKC64-81(YGCB)
10.5
10.1
9.4
8.5
8.4
DeKalb
DeKalb
DeKalb
DKC61-72(RR2)
DKC61-45(RR2/YGCB)
DKC63-81(RR2/YGCB)
2-Yr Avg
Dry Forage
Plant
Population
Yield
no.
tons/acre
Dry
Matter
%
Grain
Portion
%
27.4
23.4
19.9
16.4
20.1
38.3
43.3
47.2
51.9
41.7
46
51
53
55
53
28750
28096
28968
28532
27879
10.6
9.8
.
8.8
.
8.3
8.2
8.2
19.5
18.5
18.6
42.8
45.4
44.0
54
58
50
29185
29403
30492
.
.
.
9.0
20.5
44.3
52
28913
9.7
Short-Season
Average
Mid-Season
AgraTech
Croplan Genetics
DynaGro
Greenwood
Golden Acres
1021RR
DS 822 RR2/BT
58K40
780
2841RRB
10.7
9.8
9.6
9.5
9.5
27.1
24.8
22.7
20.4
22.2
39.4
39.3
42.5
46.8
43.0
45
53
51
53
56
29403
28967
28701
28967
27879
.
9.8
.
10.5
.
Southern States
DeKalb
Garst
Pioneer
Hytest
SS842RR2/YGCB
DKC66-23(RR2/YGCB)
8225YG1/RR
31R87
7924RR2/BT
9.5
9.3
9.3
9.1
8.9
24.3
20.8
22.6
22.8
20.0
39.6
44.9
40.9
40.2
44.6
53
57
51
45
52
30928
30710
30057
28750
30928
.
.
.
10.1
9.3
Croplan Genetics 823 HX/LL
DeKalb
DKC69-71(RR2/YGCB)
Pioneer
31Y43
8.8
8.4
7.9
21.4
19.0
18.3
42.3
44.0
43.0
47
52
49
30153
30057
28992
.
.
9.3
9.2
22.0
42.3
51
29576
9.8
Average
9.1 1
21.4 2
43.1
52
LSD at 10% Level
Std. Err. of Entry Mean
1.0
0.4
2.8
1.2
4.2
1.8
4
2
29323
N.S.3
1121
N.S.
0.4
Average
Overall test averages and statistics:
9.8
1. CV = 9.5%, and df for EMS = 60.
2. CV = 11.1%, and df for EMS = 60.
3. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was
not calculated.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
April 11, 2006.
Harvested:
August 14, 2006.
Seeding Rate:
31,500 seeds/acre in 30" rows.
Soil Type:
Waynesboro loam.
Soil Test:
P = High, K = Very High, and pH = 5.4.
Fertilization:
25 lb N, 60 lb P2O5, and 160 lb K2O/acre as preplant; 200 lb N/acre as sidedress.
Previous Crop:
Soybean.
Management:
Chisel plowed, disked, and rototilled; Atrazine, Lasso, and one cultivation used for weed control;
Warrior used for insect control; irrigated 13.5 inches.
Test conducted by P. A. Rose and J. Stubbs.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 707
October 2006
Blairsville, Georgia:
Evaluation of Corn Hybrids for Silage, 2006, Nonirrigated
Company or
Brand Name
Hybrid
Name
Forage Yield
Dry
Green
tons/acre
2T780
33V15
1851W
707RR
14.0
32.8
11.8
11.5
10.1
2-Yr Avg
Dry Forage
Plant
Population
Yield
no.
tons/acre
Dry
Matter
%
Grain
Portion
%
26.8
29.5
25.9
42.7
43.9
38.8
39.2
52
42
48
49
28798
28314
26862
26620
.
.
.
.
11.8
28.8
41.2
48
27648
.
13.5
13.4
34.2
12.3
12.1
12.0
11.8
11.5
11.0
11.0
10.9
10.9
10.6
10.4
33.2
29.3
28.3
30.6
29.5
29.1
28.0
39.6
45.1
37.2
41.1
38.1
34.1
35.9
37.7
38.8
35.6
36.8
36.3
37.3
45
50
47
53
50
50
41
44
52
53
53
47
46
28556
27830
29040
29040
26378
28072
27104
27286
28314
26620
28314
27588
24926
12.6
.
.
.
.
11.1
.
.
.
10.8
.
10.4
10.9
11.6
30.7
38.0
48.5
27621
11.2
11.7 1
30.3 2
38.7
48
3.2
1.3
3.7
1.6
4
2
27627
N.S.3
958
11.1
1.6
0.7
Short-Season
Mycogen
Pioneer
NK
AgraTech
Average
Mid-Season
Pioneer
DeKalb
Croplan Genetics
DeKalb
Southern States
Pioneer
AgraTech
DynaGro
Garst
Hytest
Golden Acres
Croplan Genetics
Greenwood
31R87
DKC69-71(RR2/YGCB)
823 HX/LL
DKC66-23(RR2/YGCB)
SS842RR2/YGCB
31Y43
1021RR
58K40
8225YG1/RR
7924RR2/BT
2841RRB
DS 822 RR2/BT
780
Average
29.8
29.5
31.7
34.4
32.0
Overall test averages and statistics:
Average
LSD at 10% Level
Std. Err. of Entry Mean
N.S.
0.5
1. CV = 11.5%, and df for EMS = 48.
2. CV = 8.8%, and df for EMS = 48.
3. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was
not calculated.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
May 4, 2006.
Harvested:
September 23, 2006.
Seeding Rate:
30,000 seeds/acre in 30" rows.
Soil Type:
Bradson clay loam.
Soil Test:
P = High, K = High, and pH = 6.2.
Fertilization:
30 lb N, 60 lb P2O5, and 90 lb K2O/acre as preplant; 170 lb N/acre as sidedress.
Previous Crop:
Soybean.
Management:
Moldboard plowed and disked; Atrazine, Bicep, and one cultivation used for weed control.
Test conducted by P. A. Rose and H. D. Garrett.