The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 712
October 2007
Piedmont Region
Griffin, Georgia:
Short-Season Corn Hybrid Performance, 2007, Irrigated
Company or
Brand Name
Hybrid
Name
Yield1
2-Year 3-Year
Avg
Avg
2007
-------- bu/acre --------
NK
AgraTech
DeKalb
Croplan Genetics
SS
N77-P5
695RR
DKC61-73 RR2/YGCG
6831TS
731CL
203.8
203.6
194.2
191.2
178.1
.
.
.
.
.
.
.
.
.
.
101
101
102
102
107
0.38
0.37
0.35
0.35
0.35
1.0
1.2
1.2
1.0
1.2
Pioneer
DeKalb
DeKalb
DeKalb
33M57(Hx1/LL/RR2)
DK65-47RR2
DK64-27RR2
DKC63-46 RR2/YGCB
169.7
169.4
168.5
162.3
.
.
.
.
.
.
.
.
100
101
101
105
0.33
0.32
0.34
0.31
.
.
102
N.S.5
2
0.34
N.S.
0.02
Average
LSD at 10% Level
Std. Err. of Entry Mean
1.
2.
3.
4.
5.
182.3
23.8
9.5
4
Ear
Grain Grain
Ears/100 Grain
2
3
Plants Weight Quality Moist.
no.
lb
rating
%
Plant
Pop.
no.
Erect
Plants
%
17.6
15.4
15.8
16.8
17.2
30653
30492
30653
30492
27265
100
100
100
100
100
1.0
2.1
2.0
2.2
16.8
17.0
18.2
15.7
29847
30008
28395
28717
100
100
100
100
1.4
0.2
0.1
16.7
0.5
0.2
29614
N.S.
1512
100
-
Yields calculated at 15.5% moisture.
Grain quality rating: 1 = excellent to 5 = poor.
Grain moisture at harvest.
CV = 9.2%, and df for EMS = 16.
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 3, 2007.
Harvested:
August 22, 2007.
Seeding Rate: 31,500 seeds/acre in 30" rows.
Soil Type:
Cecil sandy loam.
Soil Test:
P = High, K = High, and pH = 6.0.
75 lb N, 100 lb P 2O5, and 150 lb K 2O/acre as preplant; 100 lb N/acre as sidedress.
Fertilization:
Previous Crop: Soybean.
Management:
Moldboard plowed, disked, and rototilled; Atrazine and Lasso used for weed control; irrigated 15.0 inches.
Test conducted by J. Gassett and G. Ware.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 712
October 2007
Griffin, 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
Garst
Pioneer
Garst
DynaGro
31G65(RR2)
8247YG1
31D58
8295YG1/RR
58P60
217.8
211.5
204.3
199.0
198.3
.
.
159.8
168.8
.
.
.
.
.
.
110
100
101
101
104
0.39
0.45
0.40
0.39
0.38
1.0
1.5
1.5
1.5
1.8
AgraTech
DeKalb
DeKalb
Croplan Genetics
DeKalb
7711RR
DKC66-23 RR2/YGBC
DKC69-71(RR2/YGCB)
851TS
DKC67-23(RR2/YGCB)
196.5
193.3
192.7
189.4
183.9
.
.
157.3
155.0
144.6
.
.
168.8
170.1
.
102
102
101
100
104
0.36
0.38
0.38
0.41
0.38
Pioneer
DeKalb
Pioneer
AgraTech
DeKalb
31N28(YGCB)
DK67-87 RR2/YGCB
31P41
897RR
DK69-43RR2
176.4
176.3
174.5
172.2
169.2
.
.
144.5
.
.
.
.
.
.
.
104
103
101
100
98
SS
SS783RR2YGCB
168.3
.
.
155.0
N.S.5
6.8
169.5
N.S.
4.2
Average
LSD at 10% Level
Std. Err. of Entry Mean
1.
2.
3.
4.
5.
189.0
18.9
8.0
4
Ear
Grain Grain
Ears/100 Grain
2
3
Plants Weight Quality Moist.
no.
lb
rating
%
Plant
Pop.
no.
Erect
Plants
%
16.3
18.0
16.9
18.2
17.9
28677
27104
29161
29524
29040
100
100
100
100
100
1.5
1.5
1.3
1.5
1.3
16.5
17.7
17.3
16.8
18.0
30008
28798
28919
26136
26983
100
100
100
100
100
0.37
0.37
0.34
0.34
0.34
1.0
1.5
1.5
1.3
1.5
17.1
18.6
17.0
17.8
17.1
26257
27104
29403
29161
29161
100
100
100
100
100
101
0.35
1.5
16.1
26983
100
102
4
2
0.38
0.04
0.02
1.4
0.3
0.1
17.3
0.4
0.2
28276
1960
825
100
-
Yields calculated at 15.5% moisture.
Grain quality rating: 1 = excellent to 5 = poor.
Grain moisture at harvest.
CV = 8.4%, and df for EMS = 45.
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 3, 2007.
Harvested:
August 23, 2007.
Seeding Rate: 30,500 seeds/acre in 30" rows.
Soil Type:
Cecil sandy loam.
Soil Test:
P = High, K = High, and pH = 6.0.
75 lb N, 100 lb P 2O5, and 150 lb K 2O/acre as preplant; 100 lb N/acre as sidedress.
Fertilization:
Previous Crop: Soybean.
Management:
Moldboard plowed, disked, and rototilled; Atrazine and Lasso used for weed control; irrigated 15.0 inches.
Test conducted by J. Gassett and G. Ware.