The University of Georgia
GAES Research Report Number 657
November 1998

Griffin, Georgia:

Short-Season Corn Hybrid Performance, 1998, Irrigated
       Yield1        
Company or
Brand Name		 Hybrid
Name		 1998 3-Year Average Ears/100 Plants Ear Grain Weight Grain Quality2 Grain Moisture3 Erect Plants
bu/acre no. lb rating % %
 
Terra TR 1154 193.6 . 102 0.37 1.1 17.2 100
Pioneer 3223 191.1 231.9 103 0.36 1.0 18.5 100
AgraTech 787 185.9 211.2 101 0.36 1.1 17.1 100
Pioneer 32k61 182.4 . 101 0.36 1.0 17.5 100
Pioneer 33G26 177.6 . 101 0.34 1.3 17.2 100
 
Pioneer 3245 170.8 210.9 101 0.33 1.3 17.6 100
 
Average 183.64 218.0 101 0.35 1.1 17.5 100
LSD at 10% Level 11.0 N.S.5 N.S. 0.02 N.S. N.S. .
Std. Err. of Entry Mean 4.4 2.8 1 0.01 0.1 0.4 .
1. Yields calculated at 15.5% moisture.
2. Grain quality rating: 1 = excellent to 5 = poor.
3. Grain moisture at harvest.
4. CV = 4.8%, and df for EMS = 15.
5. 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 6, 1998.
Harvested: August 28, 1998.
Population: 27,000 plants/acre in 30" rows.
Soil Type: Appling coarse sandy loam.
Soil Test: P = Medium, K = High, and pH = 6.7.
Fertilization: 49 lb N, 98 lb P2O5, and 147 lb K2O/acre as preplant; 200 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Moldboard plowed and rototilled; Aatrex and Lasso used for weed control;
irrigated 12 inches.
 
Test conducted by J. L. Day.


Griffin, Georgia:

Mid and Full-Season Corn Hybrid Performance, 1998, Irrigated
      Yield1       
Company or
Brand Name		 Hybrid
Name		 1998 3-Year Average Ears/100 Plants Ear Grain Weight Grain Quality2 Grain Moisture3 Erect Plants
bu/acre no. lb rating % %
 
Pioneer 31B13 179.0 . 103 0.38 1.3 15.7 100
Pioneer 3163 174.2 217.5 102 0.36 1.5 15.0 100
NK N 8811 170.7 189.8 102 0.37 1.1 17.3 100
Pioneer 3085* 169.6 208.9 103 0.35 1.1 17.5 100
Terra TR 1185 168.8 190.1 103 0.37 1.9 16.9 100
 
Terra TR 702E 162.7 184.3 101 0.36 1.5 16.5 100
DeKalb DK 683 162.0 207.4 115 0.31 1.4 15.4 100
Terra TR 1167 160.6 189.3 102 0.32 1.8 14.8 100
Terra TR 1186 144.7 . 101 0.33 1.8 16.2 100
 
Average 165.84 198.2 103 0.35 1.5 16.1 100
LSD at 10% Level 15.1 7.6 5 0.01 N.S.5 0.8 .
Std. Err. of Entry Mean 6.2 4.0 2 0.02 0.2 0.3 .
1. Yields calculated at 15.5% moisture.
2. Grain quality rating: 1 = excellent to 5 = poor.
3. Grain moisture at harvest.
4. CV = 7.5%, and df for EMS = 24.
5. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD     value was not calculated.
* Full-season hybrid.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10).
Planted: April 6, 1998.
Harvested: September 2, 1998
Population: 23,500 plants/acre in 30" rows.
Soil Type: Appling coarse sandy loam.
Soil Test: P = Medium, K = High, and pH = 6.7.
Fertilization: 49 lb N, 98 lb P2O5, and 147 lb K2O/acre as preplant; 200 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Moldboard plowed and rototilled; Aatrex and Lasso used for weed control; irrigated 12 inches.
 
Test conducted by J. L. Day.