The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 712
October 2007
North Georgia Region
Calhoun, Georgia:
Short-Season Corn Hybrid Performance, 2007, Nonirrigated
Company or
Brand Name
Hybrid
Name
Yield1
2-Year 3-Year
Avg
Avg
2007
-------- bu/acre --------
Pioneer
DeKalb
Croplan Genetics
SS
AgraTech
33M57(Hx1/LL/RR2)
DKC63-46 RR2/YGCB
6831TS
731CL
695RR
100.5
99.6
99.4
91.1
91.0
.
.
.
.
.
.
.
.
.
.
95
94
96
96
93
0.26
0.25
0.26
0.28
0.25
1.5
1.8
1.5
1.5
1.8
DeKalb
DeKalb
DeKalb
DKC61-73 RR2/YGCG
DK64-27RR2
DK65-47RR2
86.5
84.0
77.7
.
.
.
.
.
.
94
93
92
0.24
0.23
0.22
91.2 4
N.S.5
6.6
.
.
94
N.S.
2
0.25
N.S.
0.02
Average
LSD at 10% Level
Std. Err. of Entry Mean
1.
2.
3.
4.
5.
Ear
Grain Grain
Ears/100 Grain
2
3
Plants Weight Quality Moist.
no.
lb
rating
%
Plant
Pop.
no.
Erect
Plants
%
14.6
13.2
13.5
14.9
13.8
22978
22682
22107
18949
21671
100
100
100
100
100
1.3
1.5
1.3
13.8
15.0
16.2
20691
22869
21236
100
100
100
1.5
N.S.
0.1
14.3
0.7
0.3
21648
N.S.
1024
100
-
Yields calculated at 15.5% moisture.
Grain quality rating: 1 = excellent to 5 = poor.
Grain moisture at harvest.
CV = 14.4%, and df for EMS = 21.
The F-test indicated no statistical differences at the alpha = .10 probability level; therefore a 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 19, 2007, replanted on May 11, 2007.
Harvested:
August 18, 2007.
Seeding Rate: 23,500 seeds/acre in 30" rows.
Soil Type:
Rome gravelly clay loam.
Soil Test:
P = High, K = Very High, and pH = 6.0.
15 lb N, 45 lb P 2O5, and 120 lb K 2O/acre as preplant; 150 lb N/acre as sidedress.
Fertilization:
Previous Crop: Fallow.
Management:
Moldboard plowed, disked, and rototilled; Atrazine, Lasso, and one cultivation used for weed control;
Warrior used for insect control.
Test conducted by J. Gassett, G. Ware, and J. Stubbs.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 712
October 2007
Calhoun, Georgia:
Mid-Season Corn Hybrid Performance, 2007, Nonirrigated
Company or
Brand Name
Hybrid
Name
Yield1
2-Year 3-Year
Avg
Avg
2007
-------- bu/acre --------
DeKalb
AgraTech
DeKalb
DeKalb
DeKalb
DKC67-23(RR2/YGCB)
7711RR
DKC69-71(RR2/YGCB)
DK67-87 RR2/YGCB
DKC66-23 RR2/YGBC
119.7
109.4
101.5
100.9
99.0
.
.
64.4
.
.
.
.
105.9
.
.
98
94
92
95
93
0.29
0.29
0.25
0.27
0.27
1.5
1.5
1.5
1.8
1.5
DynaGro
SS
Pioneer
Croplan Genetics
Pioneer
CX06517
SS783RR2YGCB
31G65(RR2)
851TS
31N28(YGCB)
92.1
92.1
89.6
88.9
81.0
.
.
.
59.1
.
.
.
.
108.8
.
93
95
92
97
95
0.24
0.24
0.27
0.24
0.25
DeKalb
Pioneer
Pioneer
AgraTech
DK69-43RR2
31P41
31D58
897RR
80.2
76.4
70.6
68.6
.
52.6
54.8
.
.
.
.
.
92
90
87
96
90.7 4
22.0
9.2
57.7
N.S.5
7.2
107.4
N.S.
4.7
93
N.S.
3
Average
LSD at 10% Level
Std. Err. of Entry Mean
1.
2.
3.
4.
5.
Ear
Grain Grain
Ears/100 Grain
2
3
Plants Weight Quality Moist.
no.
lb
rating
%
Plant
Pop.
no.
Erect
Plants
%
14.2
15.8
15.4
15.4
13.3
22978
22651
24821
22107
21344
100
100
100
100
100
1.3
1.8
1.5
2.0
1.5
15.3
14.8
13.5
14.0
14.2
23087
22760
19929
21344
20473
100
100
100
100
100
0.25
0.24
0.23
0.19
1.8
1.8
1.3
2.3
15.9
14.9
14.6
15.3
20147
19820
19820
21127
100
100
100
100
0.25
N.S.
0.02
1.6
N.S.
0.3
14.7
0.2
0.2
21600
N.S.
1352
100
-
Yields calculated at 15.5% moisture.
Grain quality rating: 1 = excellent to 5 = poor.
Grain moisture at harvest.
CV = 20.4%, and df for EMS = 39.
The F-test indicated no statistical differences at the alpha = .10 probability level; therefore a 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 19, 2007, replanted May 11, 2007.
Harvested:
August 18, 2007.
Seeding Rate: 23,500 seeds/acre in 30" rows.
Soil Type:
Rome gravelly clay loam.
Soil Test:
P = High, K = Very High, and pH = 6.0.
15 lb N, 45 lb P 2O5, and 120 lb K 2O/acre as preplant; 150 lb N/acre as sidedress.
Fertilization:
Previous Crop: Fallow.
Management:
Moldboard plowed, disked, and rototilled; Atrazine, Lasso, and one cultivation used for weed control;
Warrior used for insect control.
Test conducted by J. Gassett, G. Ware, and J. Stubbs.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 712
October 2007
Calhoun, Georgia:
Short-Season Corn Hybrid Performance, 2007, Irrigated
Company or
Brand Name
Hybrid
Name
Yield1
2-Year 3-Year
Avg
Avg
2007
-------- bu/acre --------
DeKalb
DeKalb
Croplan Genetics
DeKalb
DeKalb
DKC61-73 RR2/YGCG
DKC63-46 RR2/YGCB
6831TS
DK64-27RR2
DK65-47RR2
154.2
145.5
142.1
140.2
131.1
.
.
.
.
.
.
.
.
.
.
103
103
104
108
103
0.33
0.31
0.31
0.32
0.30
1.5
1.5
2.0
1.8
1.8
AgraTech
SS
Pioneer
695RR
731CL
33M57(Hx1/LL/RR2)
129.2
122.5
116.8
.
.
.
.
.
.
102
107
103
0.29
0.27
0.25
.
.
104
N.S.5
2
0.30
0.04
0.02
Average
LSD at 10% Level
Std. Err. of Entry Mean
135.2
14.0
5.8
4
1.
2.
3.
4.
5.
Ear
Grain Grain
Ears/100 Grain
2
3
Plants Weight Quality Moist.
no.
lb
rating
%
Plant
Pop.
no.
Erect
Plants
%
15.2
15.0
14.2
16.1
17.2
25483
25374
24503
23196
24067
100
100
100
100
100
1.5
1.8
1.5
16.6
16.5
16.4
24918
24067
25701
100
100
100
1.7
0.2
0.1
15.9
1.1
0.4
24663
N.S.
1018
100
-
Yields calculated at 15.5% moisture.
Grain quality rating: 1 = excellent to 5 = poor.
Grain moisture at harvest.
CV = 8.5%, and df for EMS = 21.
The F-test indicated no statistical differences at the alpha = .10 probability level; therefore a 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 19, 2007, replanted May 11, 2007.
Harvested:
August 18, 2007.
Seeding Rate: 28,000 seeds/acre in 30" rows.
Soil Type:
Waynesboro loam.
Soil Test:
P = High, K = Very High, and pH = 6.0.
24 lb N, 60 lb P 2O5, and 160 lb K 2O/acre as preplant; 200 lb N/acre as sidedress.
Fertilization:
Previous Crop: Soybean.
Management:
Moldboard plowed, disked, and rototilled; Atrazine, Lasso, and one cultivation used for weed control;
Warrior used for insect control; irrigated 21.0 inches.
Test conducted by J. Gassett, G. Ware, and J. Stubbs.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 712
October 2007
Calhoun, Georgia:
Mid-Season Corn Hybrid Performance, 2007, Irrigated
Company or
Brand Name
Hybrid
Name
Yield1
2-Year 3-Year
Avg
Avg
2007
-------- bu/acre --------
Pioneer
DeKalb
Croplan Genetics
AgraTech
DeKalb
31P41
DKC66-23 RR2/YGBC
851TS
7711RR
DKC67-23(RR2/YGCB)
147.3
137.1
129.9
124.5
121.1
186.5
.
173.5
.
.
.
.
185.5
.
.
99
102
97
100
101
0.37
0.30
0.31
0.29
0.28
1.8
1.5
1.5
1.5
1.5
AgraTech
Pioneer
Pioneer
SS
DeKalb
897RR
31D58
31N28(YGCB)
SS783RR2YGCB
DK67-87 RR2/YGCB
120.3
118.9
114.2
113.5
113.3
.
178.9
.
.
.
.
.
.
.
.
96
101
102
104
100
0.30
0.27
0.26
0.25
0.25
DeKalb
Pioneer
DynaGro
DeKalb
DKC69-71(RR2/YGCB)
31G65(RR2)
CX06517
DK69-43RR2
112.7
110.8
109.1
103.1
173.1
.
.
.
182.8
.
.
.
97
104
98
103
178.0
N.S.5
3.4
184.2
N.S.
8.9
100
N.S.
2
Average
LSD at 10% Level
Std. Err. of Entry Mean
119.7
18.5
7.8
4
1.
2.
3.
4.
5.
Ear
Grain Grain
Ears/100 Grain
2
3
Plants Weight Quality Moist.
no.
lb
rating
%
Plant
Pop.
no.
Erect
Plants
%
17.0
14.4
15.3
17.5
15.2
23087
24611
23958
24285
24067
100
100
100
100
100
2.5
1.5
1.5
1.0
1.5
16.7
16.4
15.2
14.7
16.7
24067
24938
23958
24393
25483
100
100
100
100
100
0.25
0.29
0.27
0.26
1.5
2.0
1.8
1.3
15.1
15.0
18.8
18.5
26463
20473
24067
22760
100
100
100
100
0.28
0.04
0.02
1.6
0.2
0.1
16.2
1.1
0.5
24044
2444
1026
100
-
Yields calculated at 15.5% moisture.
Grain quality rating: 1 = excellent to 5 = poor.
Grain moisture at harvest.
CV = 12.9%, and df for EMS = 39.
The F-test indicated no statistical differences at the alpha = .10 probability level; therefore a 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 19, 2007, replanted May 11, 2007.
Harvested:
August 18, 2007.
Seeding Rate: 28,000 seeds/acre in 30" rows.
Soil Type:
Waynesboro loam.
Soil Test:
P = High, K = Very High, and pH = 5.4.
24 lb N, 60 lb P 2O5, and 160 lb K 2O/acre as preplant; 200 lb N/acre as sidedress.
Fertilization:
Previous Crop: Soybean.
Management:
Moldboard plowed, disked, and rototilled; Atrazine, Lasso, and one cultivation used for weed control;
Warrior used for insect control; irrigated 21.0 inches.
Test conducted by J. Gassett, G. Ware, and J. Stubbs.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 712
October 2007
Blairsville, Georgia:
Short-Season Corn Hybrid Performance, 2007, Nonirrigated
Company or
Brand Name
Hybrid
Name
Yield1
2-Year 3-Year
Avg
Avg
2007
-------- bu/acre --------
Pioneer
Pioneer
DeKalb
AgraTech
Croplan Genetics
33M57(Hx1/LL/RR2)
33V16(YGCB/RR2)
DKC61-73 RR2/YGCG
695RR
6831TS
241.6
232.3
227.2
204.0
188.9
.
.
.
.
.
.
.
.
.
.
117
112
113
107
101
0.63
0.60
0.53
0.65
0.55
1.3
1.5
1.5
1.3
1.0
DeKalb
DK64-27RR2
178.8
.
.
115
0.46
.
.
111
8
3
0.57
0.07
0.03
Average
LSD at 10% Level
Std. Err. of Entry Mean
212.1
21.9
8.8
4
1.
2.
3.
4.
5.
Ear
Grain Grain
Ears/100 Grain
2
3
Plants Weight Quality Moist.
no.
lb
rating
%
Plant
Pop.
no.
Erect
Plants
%
20.2
18.8
17.7
18.6
19.1
23929
24453
26407
21054
24200
78
100
100
88
100
1.5
18.0
23612
100
1.3
N.S.5
0.2
18.7
0.6
0.2
23942
1254
506
94
N.S.
11
Yields calculated at 15.5% moisture.
Grain quality rating: 1 = excellent to 5 = poor.
Grain moisture at harvest.
CV = 8.3%, and df for EMS = 15.
The F-test indicated no statistical differences at the alpha = .10 probability level; therefore a 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 7, 2007.
Harvested:
October 3, 2007.
Seeding Rate: 26,900 seeds/acre in 30" rows.
Soil Type:
Arkaqua loam.
Soil Test:
P = High, K = High, and pH = 6.3.
55 lb N, 110 lb P 2O5, and 165 lb K 2O/acre as preplant; 153 lb N/acre as sidedress.
Fertilization:
Previous Crop: Soybeans.
Management:
Moldboard plowed and disked; Aatrex, Imazine, Banvil and two cultivations used for weed control.
Test conducted by J. Gassett, G. Ware, and H. Garrett.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 712
October 2007
Blairsville, Georgia:
Mid-Season Corn Hybrid Performance, 2007, Nonirrigated
Company or
Brand Name
Hybrid
Name
Yield1
2-Year 3-Year
Avg
Avg
2007
-------- bu/acre --------
Pioneer
Pioneer
Pioneer
Pioneer
AgraTech
31P41
31G65(RR2)
31N28(YGCB)
31D58
897RR
266.5
255.2
252.7
251.1
244.6
234.0
.
.
233.6
.
.
.
.
.
.
107
149
110
111
113
0.74
0.50
0.67
0.71
0.68
1.1
1.3
1.4
1.1
1.1
SS
Croplan Genetics
DynaGro
DeKalb
AgraTech
SS783RR2YGCB
851TS
58P60
DKC66-23 RR2/YGBC
7711RR
231.3
226.8
221.5
209.8
201.9
.
219.6
.
.
.
.
.
.
.
.
115
104
128
112
121
0.59
0.62
0.57
0.54
0.55
229.1
N.S.5
8.3
.
117
8
3
0.62
0.08
0.04
Average
LSD at 10% Level
Std. Err. of Entry Mean
236.1
34.1
14.1
4
1.
2.
3.
4.
5.
Ear
Grain Grain
Ears/100 Grain
2
3
Plants Weight Quality Moist.
no.
lb
rating
%
Plant
Pop.
no.
Erect
Plants
%
21.1
19.7
21.0
20.8
24.7
24684
24596
25058
23413
24442
100
100
100
98
100
1.4
1.5
1.4
1.1
1.3
21.0
18.3
20.5
18.4
18.9
25168
25027
22264
24684
21692
100
100
74
98
100
1.3
N.S.
0.2
20.4
1.2
0.5
24103
1914
794
97
N.S.
8
Yields calculated at 15.5% moisture.
Grain quality rating: 1 = excellent to 5 = poor.
Grain moisture at harvest.
CV = 12.0%, and df for EMS = 27.
The F-test indicated no statistical differences at the alpha = .10 probability level; therefore a 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 7, 2007.
Harvested:
October 3, 2007.
Seeding Rate: 25,500 seeds/acre in 30" rows.
Soil Type:
Arkaqua loam.
Soil Test:
P = High, K = High, and pH = 6.3.
55 lb N, 110 lb P 2O5, and 165 lb K 2O/acre as preplant; 153 lb N/acre as sidedress.
Fertilization:
Previous Crop: Soybeans.
Management:
Moldboard plowed and disked; Aatrex, Imazine, Banvil and two cultivations used for weed control.
Test conducted by J. Gassett, G. Ware, and H. Garrett.