The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 701
October 2005
Silage Test Results
Summary of Evaluations of Corn Hybrids for Silage
Blairsville, Calhoun, Griffin, and Tifton, Georgia, 2005
Quality Factors1
Company or
Brand Name
Hybrid
Name
Milk Production2
lbs/ton
Quality
DM
lbs/acre Portion
Dry Matter Yield
Statewide
Average Blairsville Calhoun Griffin Tifton
----------------------- tons/acre ----------------------
Short -Season
AgraTech
AgraTech
DeKalb
DeKalb
Hytest
717RR
9814
DKC61-72(RR2)
DKC63-62(RR2)
7799Bt
2571
2530
3013
2571
2594
24685
28339
28923
25709
23861
48
43
54
48
55
8.8
.
.
.
9.4
9.3
.
.
.
10.9
8.8
.
.
.
8.5
7.5
.
8.6
8.8
9.1
9.6
11.2
9.6
10.0
9.2
Mycogen
Mycogen
Mycogen
NK
Pioneer
2D835
2J787
2T780
1851W
33D63
2460
2420
2657
2428
2740
25340
23234
24445
25983
28765
48
51
54
44
48
.
9.7
9.4
9.8
9.5
.
9.6
10.4
10.0
9.2
.
10.5
9.5
10.8
8.5
.
9.0
8.4
7.7
9.5
10.3
9.6
9.1
10.7
10.5
Pioneer
SS
Terral
33V15
692BT
TV2140nRR
2494
2829
2465
25683
26309
29337
49
49
47
10.1
9.1
11.0
12.1
8.9
10.6
9.0
8.8
12.2
9.0
9.4
9.4
10.3
9.3
11.9
2598 3
26201 5
49
9.6
10.1
9.6
8.8
10.1
N.S.
2167
4
2
0.6
0.3
1.0
0.4
1.6
0.7
1.1
0.5
1.5
0.6
Average
LSD at 10% Level
Std. Err. of Entry Mean
N.S.
204
4
Summary of Evaluations of Corn Hybrids for Silage
Blairsville, Calhoun, Griffin, and Tifton, Georgia, 2005 (Continued)
Quality Factors1
Company or
Brand Name
Hybrid
Name
Milk Production2
lbs/ton
Quality
DM
lbs/acre Portion
Dry Matter Yield
Statewide
Average Blairsville Calhoun Griffin Tifton
----------------------- tons/acre ----------------------
Mid-Season
AgraTech
AgraTech
AgraTech
AgraTech
AgraTech
1021RR
855RR
919RR
9505
999Bt
2535
2715
2514
2069
2852
29410
28238
24640
22340
31937
39
45
48
28
45
.
.
.
.
10.6
.
.
.
.
10.2
.
.
.
.
11.0
.
.
.
.
10.1
11.6
10.4
9.7
10.8
11.1
AgraTech
Croplan Genetics
DeKalb
DeKalb
DeKalb
999aRR
822RR2/BT
DKC66-21(YGCB)
DKC67-60(RR2)
DKC69-71(RR2/YGCB)
2844
2689
2372
2808
2437
32993
27157
23717
28918
27538
44
48
54
43
45
.
10.1
.
.
.
.
10.3
.
.
.
.
9.8
.
.
.
.
10.2
8.4
9.4
10.7
11.6
10.1
10.0
10.3
11.2
DeKalb
DynaGro
DynaGro
Golden Acres
Greenwood
DKC69-72(RR2)
58K22
58K40
2295RR
775
2030
2689
2647
2582
2670
21310
29574
29119
24532
28835
46
50
45
45
49
.
.
.
9.2
.
.
.
.
8.2
.
.
.
.
9.4
.
10.8
.
.
9.6
.
10.5
10.9
11.0
9.5
10.8
Greenwood
Hytest
Hytest
Monsanto
Monsanto
780
7891RR2/BT
7924RR2/BT
NC6702
NC6704NRR1
2739
2669
2525
2701
2791
27117
30158
24999
27008
28463
48
54
48
47
51
11.1
.
9.9
.
.
11.3
.
10.7
.
.
11.5
.
9.6
.
.
11.6
.
9.4
10.8
10.7
9.9
11.3
9.9
10.0
10.2
Monsanto
NK
NK
NK
Pioneer
NC6901
N91-R9
NX8363
NX8513
31R87(RR2)
2836
2335
2554
2414
2690
35731
23813
26053
28240
28247
46
47
49
47
49
.
10.9
.
.
11.1
.
13.1
.
.
11.6
.
10.7
.
.
11.1
11.1
9.6
.
.
11.2
12.6
10.2
10.2
11.7
10.5
Pioneer
Pioneer
SS
SS
Vigoro
31Y43
32D99
804
842RR2/YGCB
V58YR2
3345
2734
2515
2693
2617
33786
27618
27670
24504
24334
47
50
47
47
53
10.3
10.7
10.1
9.8
8.5
10.4
11.3
10.6
10.5
8.3
10.7
10.8
9.8
9.5
8.6
9.8
10.7
8.8
10.2
7.9
10.1
10.1
10.9
9.1
9.3
2620 6
276
115
27600 7
2921
1219
47
3
1
10.2
0.7
0.3
10.5
1.7
0.7
10.2
1.2
0.5
10.1
1.4
0.6
10.5
1.3
0.6
Average
LSD at 10% Level
Std. Err. of Entry Mean
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. CV = 11.1%, and df for EMS = 12.
4. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not
calculated.
5. CV = 11.7%, and df for EMS = 12.
6. CV = 6.2%, and df for EMS = 29.
7. CV = 6.2%, and df for EMS = 29.
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 701
October 2005
Tifton, Georgia:
Evaluation of Corn Hybrids for Silage, 2005, Irrigated
Company or
Brand Name
Hybrid
Name
Forage Yield
Dry
Green
tons/acre
Terral
AgraTech
NK
Pioneer
Pioneer
TV2140nRR
9814
1851W
33D63
33V15
11.9
11.2
10.7
10.5
10.3
Mycogen
DeKalb
DeKalb
Mycogen
AgraTech
2D835
DKC63-62(RR2)
DKC61-72(RR2)
2J787
717RR
SS
Hytest
Mycogen
692BT
7799Bt
2T780
2-Yr Avg
Dry Forage
Plant
Population
Yield
no.
tons/acre
Dry
Matter
%
Grain
Portion
%
26.5
27.5
28.5
26.1
24.9
45.2
40.9
37.5
40.5
41.5
47
43
44
48
49
30275
29403
31145
30274
30057
12.7
.
12.6
.
11.6
10.3
10.0
9.6
9.6
9.6
24.9
23.6
24.5
21.1
23.5
41.3
42.6
39.4
45.6
40.7
48
48
54
51
48
31145
29185
29403
30928
30928
.
.
.
.
10.9
9.3
9.2
9.2
25.5
22.0
21.9
36.6
42.2
42.4
49
55
54
28096
29621
28750
.
10.6
.
10.1 1
24.6 2
41.3
49
11.7
1.5
0.6
3.7
1.5
3.5
1.5
4
2
29939
N.S.3
901
Short-Season
Average
LSD at 10% Level
Std. Err. of Entry Mean
1.3
0.5
Mid-Season
Monsanto
NK
AgraTech
AgraTech
Hytest
NC6901
NX8513
999aRR
1021RR
7891RR2/BT
12.6
11.7
11.6
11.6
11.3
31.4
29.6
30.4
31.3
28.3
40.1
39.5
38.4
37.1
39.9
46
47
44
39
54
32235
28750
25918
26790
29621
.
.
.
.
.
DeKalb
AgraTech
DynaGro
SS
DynaGro
DKC69-71(RR2/YGCB)
999Bt
58K40
804
58K22
11.3
11.2
11.0
11.0
10.9
28.0
28.9
28.3
27.1
26.9
40.1
38.6
38.9
40.5
40.7
45
45
45
47
50
30492
28532
30057
30275
30057
12.7
11.8
.
.
12.1
AgraTech
Greenwood
DeKalb
Pioneer
AgraTech
9505
775
DKC69-72(RR2)
31R87(RR2)
855RR
10.8
10.8
10.5
10.5
10.4
32.5
25.2
26.1
26.3
28.7
33.4
42.7
40.4
40.0
36.4
28
49
46
49
45
21345
32017
29185
30274
28096
.
.
12.7
.
.
DeKalb
NK
Monsanto
NK
Pioneer
DKC67-60(RR2)
N91-R9
NC6704NRR1
NX8363
32D99
10.3
10.2
10.2
10.2
10.1
27.1
26.0
27.5
23.4
26.8
37.9
39.5
37.2
43.6
38.0
43
47
51
49
50
30056
28750
29403
29621
29621
11.9
12.4
.
11.8
12.2
Tifton, Georgia:
Evaluation of Corn Hybrids for Silage, 2005, Irrigated (Continued)
Company or
Brand Name
Hybrid
Name
Forage Yield
Dry
Green
tons/acre
Dry
Matter
%
Grain
Portion
%
2-Yr Avg
Dry Forage
Plant
Population
Yield
no.
tons/acre
Mid-Season - continued
Pioneer
Croplan Genetics
DeKalb
Monsanto
Hytest
31Y43
822RR2/BT
DKC66-21(YGCB)
NC6702
7924RR2/BT
10.1
10.1
10.0
10.0
9.9
29.0
26.4
23.0
25.6
25.5
34.9
38.2
43.4
39.0
38.8
47
48
54
47
48
30056
30275
32017
30492
29403
.
.
.
.
.
Greenwood
AgraTech
Golden Acres
Vigoro
SS
780
919RR
2295RR
V58YR2
842RR2/YGCB
9.9
9.8
9.5
9.3
9.1
24.2
23.9
26.0
23.0
23.6
41.2
40.9
36.9
40.8
38.7
48
48
45
53
47
28750
27878
27661
26572
30492
12.3
11.3
.
11.5
.
10.5 4
1.3
0.6
27.0 5
3.8
1.6
39.2
2.3
1.0
47
3
1
29156
3528
1500
12.0
N.S.
0.5
Average
LSD at 10% Level
Std. Err. of Entry Mean
1. CV = 12.2%, and df for EMS = 36.
2. CV = 12.5%, and df for EMS = 36.
3. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was
not calculated.
4. CV = 10.6%, and df for EMS = 87.
5. CV = 11.9%, and df for EMS = 87.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
April 13, 2005.
Harvested:
August 2, 2005.
Seeding Rate:
Short-Season: 31,500 seeds/acre in 30" rows.
Mid-Season: 32,500 seeds/acre in 30" rows.
Soil Type:
Tifton loamy sand.
Soil Test:
P = High, K = Medium, and pH = 5.1.
Fertilization:
95 lb N, 140 lb P2O5, and 210 lb K2O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop:
Soybean.
Management:
Subsoiled, bedded, and rototilled; Sutan +, Prowl, and Atrazine used for weed control; Lorsban
used for insect control; Telone II used for nematode control; irrigated 3.0 inches.
Test conducted by A. E. Coy, R. Bennett, R. Brooke, and R. Burton.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 701
October 2005
Griffin, Georgia:
Evaluation of Corn Hybrids for Silage, 2005, Irrigated
Company or
Brand Name
Hybrid
Name
Forage Yield
Dry
Green
tons/acre
Pioneer
Terral
SS
Hytest
Pioneer
33D63
TV2140nRR
692BT
7799Bt
33V15
9.5
9.4
9.4
9.1
9.0
Mycogen
DeKalb
DeKalb
Mycogen
NK
2J787
DKC63-62(RR2)
DKC61-72(RR2)
2T780
1851W
AgraTech
717RR
2-Yr Avg
Dry Forage
Plant
Population
Yield
no.
tons/acre
Dry
Matter
%
Grain
Portion
%
30.1
32.3
30.5
28.3
29.0
31.6
29.3
30.7
32.1
31.2
45
40
48
48
44
27346
31944
29766
30250
27104
.
9.6
.
9.7
9.6
9.0
8.9
8.7
8.4
7.7
27.7
28.1
28.8
27.1
29.4
32.6
31.4
30.0
31.0
26.3
47
45
45
46
44
30008
29524
27104
28556
29766
.
.
.
.
8.7
7.5
23.4
32.2
43
27104
8.0
Average
8.8 1
28.6 2
30.8
45
1.1
0.5
3.1
1.3
2.1
0.9
4
2
28952
N.S.3
1936
9.1
LSD at 10% Level
Std. Err. of Entry Mean
Short-Season
0.8
0.3
Mid-Season
Greenwood
Pioneer
Monsanto
Monsanto
DeKalb
780
31R87(RR2)
NC6901
NC6702
DKC69-72(RR2)
11.6
11.2
11.1
10.8
10.8
34.1
35.4
32.5
34.3
32.1
34.0
31.5
34.3
31.5
33.5
38
43
42
44
42
27104
30250
30734
31702
30008
11.7
.
.
.
.
Monsanto
Pioneer
DeKalb
SS
Croplan Genetics
NC6704NRR1
32D99
DKC69-71(RR2/YGCB)
842RR2/YGCB
822RR2/BT
10.7
10.7
10.7
10.2
10.2
31.5
30.4
30.8
33.3
35.1
34.1
35.1
34.6
30.6
29.1
43
40
38
40
40
30734
31460
31460
31460
29766
.
10.7
11.2
.
.
AgraTech
Pioneer
NK
Golden Acres
DeKalb
999Bt
31Y43
N91-R9
2295RR
DKC67-60(RR2)
10.1
9.9
9.6
9.6
9.4
34.6
32.1
32.3
34.2
31.8
29.1
30.7
29.7
27.8
29.8
32
36
38
38
41
31702
30250
27588
29040
30976
.
.
10.4
9.3
9.7
Hytest
SS
DeKalb
Vigoro
7924RR2/BT
804
DKC66-21(YGCB)
V58YR2
9.4
8.9
8.4
7.9
29.4
29.7
25.8
23.9
31.8
29.9
32.8
33.0
41
44
46
49
31702
28314
28798
22506
.
.
.
8.4
10.1 4
1.4
0.6
31.7 5
3.0
1.3
31.7
2.4
1.0
41
4
2
29766
3574
1510
10.2
N.S.
0.5
Average
LSD at 10% Level
Std. Err. of Entry Mean
Griffin, Georgia:
Evaluation of Corn Hybrids for Silage, 2005, Irrigated (Continued)
1. CV = 10.3%, and df for EMS = 30.
2. CV = 9.1%, and df for EMS = 30.
3. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was
not calculated.
4. CV = 11.4%, and df for EMS = 54.
5. CV = 8.1%, and df for EMS = 54.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
April 21, 2005.
Harvested:
Short-Season: August 11, 2005.
Mid-Season: August 12, 2005.
Seeding Rate:
32,000 seeds/acre in 30" rows.
Soil Type:
Cecil clay loam.
Soil Test:
P = Medium, K = High, and pH = 6.3.
Fertilization:
49 lb N, 98 lb P2O5, and 147 lb K2O/acre as preplant; 200 lb N/acre as sidedress.
Previous Crop:
Wheat.
Management:
Moldboard plowed, disked, and rototilled; Atrazine and Lasso used for weed control;
irrigated 1.0 inch.
Test conducted by P. A. Rose.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 701
October 2005
Calhoun, Georgia:
Evaluation of Corn Hybrids for Silage, 2005, Irrigated
Company or
Brand Name
Hybrid
Name
Forage Yield
Dry
Green
tons/acre
Terral
NK
Mycogen
Mycogen
Pioneer
TV2140nRR
1851W
2J787
2T780
33V15
12.2
10.8
10.5
9.5
9.1
AgraTech
SS
Hytest
Pioneer
717RR
692BT
7799Bt
33D63
2-Yr Avg
Dry Forage
Plant
Population
Yield
no.
tons/acre
Dry
Matter
%
Grain
Portion
%
34.6
33.4
27.2
28.6
28.5
35.1
32.3
38.7
33.6
32.0
45
43
52
46
48
25483
25701
27661
24829
26790
9.2
8.7
.
.
7.3
8.8
8.8
8.6
8.5
24.6
28.7
24.6
26.5
35.9
30.4
34.7
32.3
44
51
53
45
24611
28314
23740
24394
7.4
.
8.0
.
Average
9.6 1
28.5 2
33.9
48
LSD at 10% Level
Std. Err. of Entry Mean
1.6
0.7
3.9
1.6
4.2
1.7
5
2
25725
N.S.3
1605
N.S.
0.6
Short-Season
8.1
Mid-Season
Greenwood
Pioneer
AgraTech
Pioneer
Pioneer
780
31R87(RR2)
999Bt
32D99
31Y43
11.5
11.1
11.0
10.8
10.7
30.2
31.6
33.7
33.5
33.1
38.0
35.3
32.7
32.1
32.4
49
41
38
43
42
27225
27879
29185
28750
26136
9.9
.
.
9.7
.
NK
SS
Croplan Genetics
Hytest
SS
N91-R9
804
822RR2/BT
7924RR2/BT
842RR2/YGCB
10.7
9.8
9.8
9.6
9.6
35.7
31.1
27.2
27.6
30.4
29.8
31.7
35.8
34.8
31.5
41
42
45
43
45
27879
28750
26572
28096
27225
9.4
.
.
.
.
Golden Acres
Vigoro
2295RR
V58YR2
9.4
8.6
28.0
26.6
33.6
32.2
36
47
25265
24176
8.2
7.7
10.2 4
1.2
0.5
30.7 5
2.7
1.1
33.3
2.8
1.2
43
5
2
27261
N.S.
1442
9.0
1.7
0.6
Average
LSD at 10% Level
Std. Err. of Entry Mean
Calhoun, Georgia:
Evaluation of Corn Hybrids for Silage, 2005, Irrigated (Continued)
1. CV = 14.0%, and df for EMS = 24.
2. CV = 11.4%, and df for EMS = 24.
3. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was
not calculated.
4. CV = 10.0%, and df for EMS = 33.
5. CV = 7.4%, and df for EMS = 33.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
April 20, 1995.
Harvested:
Short-Season: August 15, 2005.
Mid-Season: August 17, 2005.
Seeding Rate:
32,500 seeds/acre in 30" rows.
Soil Type:
Rome gravelly clay loam.
Soil Test:
P = High, K = High, and pH = 6.1.
Fertilization:
75 lb N, 90 lb P2O5, and 180 lb K2O/acre as preplant; 200 lb N/acre as sidedress.
Previous Crop:
Soybean.
Management:
Chisel plowed, disked, and rototilled; Atrazine, Lasso, Accent, and one cultivation used for
weed control; irrigated 0 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 701
October 2005
Blairsville, Georgia:
Evaluation of Corn Hybrids for Silage, 2005, Nonirrigated
Company or
Brand Name
Hybrid
Name
Forage Yield
Dry
Green
tons/acre
Pioneer
Hytest
Terral
Mycogen
NK
33V15
7799Bt
TV2140nRR
2T780
1851W
12.0
10.9
10.6
10.4
10.0
Mycogen
AgraTech
Pioneer
SS
2J787
717RR
33D63
692BT
2-Yr Avg
Dry Forage
Plant
Population
Yield
no.
tons/acre
Dry
Matter
%
Grain
Portion
%
28.5
25.6
26.8
27.6
29.6
42.2
42.8
39.5
37.8
33.9
52
51
45
52
48
29282
28372
28694
29349
28847
12.1
10.9
11.6
.
11.4
9.6
9.3
9.2
8.9
24.6
23.5
27.1
23.2
38.9
39.4
34.1
38.4
50
51
53
54
28694
27726
26136
28059
.
10.5
.
.
10.1 1
26.3 2
38.6
28351
11.3
1.0
0.4
1.8
0.7
3.2
1.3
51
N.S.3
3
1526
630
N.S.
0.5
Short-Season
Average
LSD at 10% Level
Std. Err. of Entry Mean
Mid-Season
NK
Pioneer
Greenwood
Pioneer
Hytest
N91-R9
31R87(RR2)
780
32D99
7924RR2/BT
13.1
11.6
11.4
11.3
10.7
39.3
34.4
31.5
32.3
31.3
33.4
33.7
36.0
34.9
34.1
55
48
52
50
50
27104
28314
25410
28072
24880
13.1
.
12.1
12.3
.
SS
SS
Pioneer
Croplan Genetics
AgraTech
804
842RR2/YGCB
31Y43
822RR2/BT
999Bt
10.6
10.6
10.4
10.3
10.2
27.0
30.9
33.6
32.2
29.4
39.3
34.3
30.8
31.8
34.8
48
54
51
49
43
29598
27830
28556
29276
28072
.
.
.
.
.
Vigoro
Golden Acres
V58YR2
2295RR
8.3
8.2
24.4
26.3
34.2
31.5
49
55
25168
24442
10.8
8.5
10.5 4
1.7
0.7
31.0 5
4.0
1.7
34.1
3.5
1.4
50
N.S.
3
27227
2667
1114
11.4
1.5
0.6
Average
LSD at 10% Level
Std. Err. of Entry Mean
Blairsville, Georgia:
Evaluation of Corn Hybrids for Silage, 2005, Nonirrigated
(Continued)
1. CV = 8.4%, and df for EMS = 24.
2. CV = 5.6%, and df for EMS = 24.
3. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was
not calculated.
4. CV = 13.2%, and df for EMS = 33.
5. CV = 10.8%, and df for EMS = 33.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
May 9, 2005.
Harvested:
September 13, 2005.
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:
Soybeans.
Management:
Moldboard plowed and disked; Atrazine, Bicep, and one cultivation used for weed control.
Test conducted by P. A. Rose and H. D. Garrett.