The University of Georgia
GAES Research Report Number 657
November 1998

Calhoun, Georgia:

Short-Season Corn Hybrid Performance, 1998, Nonirrigated
      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 % %
 
Asgrow RX 913 70.5 . 101 0.19 1.9 16.6 100
Gutwein 2696 65.7 . 102 0.18 1.5 16.3 100
Funk's G 5510-A 64.0 . 100 0.18 2.5 16.7 100
AgraTech 787 60.6 . 100 0.18 1.8 15.8 100
Terra TR 1154 59.7 . 103 0.17 2.0 15.3 100
 
DeKalb DK 668 55.8 . 101 0.16 2.0 16.1 100
NK N73-N8 53.7 . 100 0.15 1.9 15.7 100
Southland SS-4115 50.6 . 101 0.16 2.5 16.3 100
Pioneer 3245 49.6 . 101 0.14 2.3 16.1 100
HyPerformer HS 9843 48.7 . 101 0.13 2.3 16.5 100
 
AgriPro AP 9707 46.4 . 100 0.14 2.3 15.8 100
Pioneer 32k61 44.6 . 98 0.13 2.4 16.0 100
Southland SS-5111 36.9 . 100 0.11 3.0 17.1 100
Pioneer 33G26 35.3 . 101 0.10 2.6 15.3 100
AgraTech ATX770 34.8 . 101 0.10 2.8 16.3 100
 
AgraTech ATX721 18.7 . 95 0.05 3.8 16.0 100
 
Average 49.74 . 100 0.14 2.3 16.1 100
LSD at 10% Level 10.9 N.S.5 0.03 0.8 0.8 .
Std. Err. of Entry Mean 4.6 2 0.01 0.3 0.4 .
NOTE:  Grain loss due to birds caused variation in performance among plots within the tests.             Therefore, caution should be used in making decisions concerning hybrid selection             based on these results.
1. Yields calculated at 15.5% moisture.
2. Grain quality rating: 1 = excellent to 5 = poor.
3. Grain moisture at harvest.
4. CV = 18.4%, and df for EMS = 45.
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 27, 1998.
Harvested: September 10, 1998.
Population: 22,500 plants/acre in 30" rows.
Soil Type: Waynesboro loam.
Soil Test: P = High, K = Medium, and pH = 6.3.
Fertilization: 50 lb N, 47 lb P2O5, and 70 lb K2O/acre as preplant; 100 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Moldboard plowed and rototilled; Aatrex and Dual used for weed control.
 
Test conducted by J. L. Day, G. Rawls, and J. Stubbs.


Calhoun, Georgia:

Mid and Full-Season Corn Hybrid Performance, 1998, Nonirrigated
      Yield 1       
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 % %
 
DeKalb DK 687 60.3 . 103 0.18 2.4 15.9 100
Mycogen 2888 54.8 . 101 0.19 2.8 16.1 100
NK N 8811 52.3 . 101 0.17 2.6 17.0 100
Pioneer 3085* 52.2 . 103 0.17 2.0 16.5 100
Mycogen 8460 51.4 . 100 0.16 3.4 18.4 100
 
Terra TR 1186 51.0 . 102 0.18 3.0 15.8 100
Terra TR 1167 47.4 . 104 0.14 2.4 15.7 100
Southland SS-4120 47.1 . 101 0.16 2.3 16.5 100
Terra TR 1185 46.6 . 100 0.15 2.8 17.2 100
NK N 83-N5 45.3 . 101 0.14 2.5 16.7 100
 
Pioneer 3163 41.1 . 100 0.13 3.0 15.0 100
DeKalb DK 683 38.9 . 103 0.12 3.0 16.3 100
Terra TR 702E 38.8 . 100 0.12 2.9 16.8 100
Southland SS-8136* 38.2 . 115 0.12 3.3 18.4 100
Pioneer 31G20 33.7 . 100 0.11 2.8 15.5 100
 
Southland SS-5119 32.1 . 101 0.20 3.3 18.0 100
 
Average 45.74 . 102 0.15 2.8 16.6 100
LSD at 10% Level 13.4 N.S.5 0.04 0.7 1.6 .
Std. Err. of Entry Mean 5.6 3 0.02 0.3 0.6 .
NOTE:  Grain loss due to birds caused variation in performance among plots within the tests.             Therefore, caution should be used in making decisions concerning hybrid selection             based on these results.
1. Yields calculated at 15.5% moisture.
2. Grain quality rating: 1 = excellent to 5 = poor.
3. Grain moisture at harvest.
4. CV = 20.3%, and df for EMS = 30.
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 27, 1998.
Harvested: September 10, 1998.
Population: 20,000 plants/acre in 30" rows.
Soil Type: Waynesboro loam.
Soil Test: P = High, K = Medium, and pH = 6.3.
Fertilization: 50 lb N, 47 lb P2O5, and 70 lb K2O/acre as preplant; 100 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Moldboard plowed and rototilled; Aatrex and Dual used for weed control.
 
Test conducted by J. L. Day, G. Rawls, and J. Stubbs.


Calhoun, 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 % %
 
Asgrow RX 913 145.7 . 100 0.31 1.5 14.5 100
AgraTech ATX770 145.4 . 101 0.29 1.9 14.0 100
Gutwein 2696 138.0 . 100 0.29 1.4 14.5 100
AgriPro AP 9707 137.4 . 100 0.27 1.6 15.0 100
AgraTech 787 137.3 176.4 100 0.26 2.1 14.4 100
 
NK N73-N8 131.7 . 100 0.28 2.0 14.9 100
Terra TR 1154 131.6 . 104 0.26 1.5 14.1 100
Southland SS-4115 129.8 . 102 0.29 1.5 14.5 100
Funk's G 5510-A 124.9 . 99 0.28 2.0 15.4 100
HyPerformer HS 9843 124.0 . 100 0.25 1.8 14.4 100
 
Pioneer 33G26 115.6 . 100 0.22 2.3 13.9 100
Pioneer 32k61 112.2 . 99 0.24 1.0 14.4 100
AgraTech ATX721 111.6 . 100 0.25 2.6 14.3 100
Pioneer 3245 109.8 178.2 100 0.23 2.1 14.1 100
DeKalb DK 668 104.4 . 98 0.24 1.4 14.5 100
 
Southland SS-5111 100.7 . 101 0.22 1.6 14.1 100
 
Average 125.04 177.3 100 0.26 1.8 14.4 100
LSD at 10% Level 13.5 N.S.5 N.S. 0.03 0.5 0.1 .
Std. Err. of Entry Mean 5.7 3.4 1 0.02 0.2 0.1 .
1. Yields calculated at 15.5% moisture.
2. Grain quality rating: 1 = excellent to 5 = poor.
3. Grain moisture at harvest.
4. CV = 9.1%, and df for EMS = 45.
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 27, 1998.
Harvested: September 24, 1998.
Population: 27,000 plants/acre in 30" rows.
Soil Type: Waynesboro loam.
Soil Test: P = High, K = Medium, and pH = 6.3.
Fertilization: 75 lb N, 90 lb P2O5, and 180 lb K2O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop: Cotton.
Management: Moldboard plowed and rototilled; Aatrex and Dual used for weed control; irrigated 3 inches.
 
Test conducted by J. L. Day, G. Rawls, and J. Stubbs.


Calhoun, 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 3085* 145.9 188.7 101 0.32 1.0 14.8 100
NK N 83-N5 145.4 . 100 0.32 1.3 13.9 100
Mycogen 2888 139.4 . 101 0.28 1.9 14.2 100
DeKalb DK 683 134.0 171.3 103 0.30 1.6 14.7 100
Pioneer 3163 129.7 178.8 100 0.28 1.5 13.6 100
 
Terra TR 1167 127.2 161.4 100 0.28 1.4 14.7 100
Pioneer 31G20 123.8 . 100 0.29 1.5 15.0 100
NK N 8811 122.2 162.1 100 0.28 1.0 15.6 100
Terra TR 702E 122.1 160.0 100 0.27 1.0 15.5 100
DeKalb DK 687 120.2 . 100 0.28 1.3 15.4 100
 
Southland SS-4120 117.8 . 102 0.26 1.6 14.9 100
Terra TR 1185 114.7 159.0 101 0.26 1.8 14.9 100
Mycogen 8460 112.9 . 100 0.25 1.6 14.8 100
Terra TR 1186 109.9 . 100 0.24 1.3 15.1 100
Southland SS-8136* 101.8 . 101 0.23 1.0 16.1 100
 
Southland SS-5119 75.7 . 102 0.23 1.5 13.8 100
 
Average 121.44 168.7 101 0.27 1.4 14.8 100
LSD at 10% Level 16.6 8.7 N.S.5 0.05 N.S. 0.4 .
Std. Err. of Entry Mean 7.0 3.7 1 0.02 0.2 0.2 .
1. Yields calculated at 15.5% moisture.
2. Grain quality rating: 1 = excellent to 5 = poor.
3. Grain moisture at harvest.
4. CV = 11.5%, and df for EMS = 45.
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 27, 1998.
Harvested: September 24, 1998.
Population: 23,500 plants/acre in 30" rows.
Soil Type: Waynesboro loam.
Soil Test: P = High, K = Medium, and pH = 6.3.
Fertilization: 75 lb N, 90 lb P2O5, and 180 lb K2O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop: Cotton.
Management: Moldboard plowed and rototilled; Aatrex and Dual used for weed control; irrigated 3 inches.
 
Test conducted by J. L. Day, G. Rawls, and J. Stubbs.


Blairsville, Georgia:

Short-Season Corn Hybrid Performance, 1998, Nonirrigated

      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 % %
 
AgraTech 787 185.1 208.5 103 0.43 1.0 17.7 100
Terra TR 1154 182.6 . 101 0.41 1.0 15.9 100
Pioneer 32k61 175.1 . 100 0.39 1.0 18.6 100
Pioneer 3245 160.9 205.4 100 0.37 1.0 18.2 100
Pioneer 33G26 150.0 . 101 0.34 1.0 18.0 100
 
Average 170.74 206.9 101 0.39 1.0 17.7 100
LSD at 10% Level 15.5 N.S.5 N.S. 0.04 . 0.4 .
Std. Err. of Entry Mean 6.2 2.9 1 0.02 . 0.2 .
1. Yields calculated at 15.5% moisture.
2. Grain quality rating: 1 = excellent to 5 = poor.
3. Grain moisture at harvest.
4. CV = 7.2%, and df for EMS = 12.
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: May 14, 1998.
Harvested: October 2, 1998.
Population: 22,500 plants/acre in 30" rows.
Soil Type: Bradson clay loam.
Soil Test: P = High, K = Medium, and pH = 6.3.
Fertilization: 90 lb N, 90 lb P2O5, and 90 lb K2O/acre as preplant; 100 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Moldboard plowed and disked; Aatrex, Bicep, and one cultivation used for weed control.
 
Test conducted by J. L. Day and H. D. Garrett.


Blairsville, Georgia:

Mid and Full-Season Corn Hybrid Performance, 1998, Nonirrigated

      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 3085* 205.5 . 106 0.51 1.0 21.2 100
NK N 8811 197.3 . 100 0.50 1.0 21.4 100
Pioneer 3163 193.1 . 100 0.49 1.0 17.9 100
Terra TR 1186 182.2 . 102 0.46 1.0 20.6 100
Terra TR 1185 175.8 . 100 0.47 1.0 19.3 100
 
DeKalb DK 683 175.4 . 105 0.43 1.0 19.7 100
Terra TR 1167 170.7 . 102 0.43 1.0 17.9 100
Terra TR 702E 170.7 . 101 0.45 1.0 20.4 100
 
Average 183.84 . 102 0.47 1.0 19.8 100
LSD at 10% Level 15.6 N.S.5 0.03 . 0.5 .
Std. Err. of Entry Mean 6.4 2 0.01 . 0.2 .
1. Yields calculated at 15.5% moisture.
2. Grain quality rating: 1 = excellent to 5 = poor.
3. Grain moisture at harvest.
4. CV = 7.0%, and df for EMS = 21.
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: May 14, 1998.
Harvested: October 2, 1998.
Population: 20,000 plants/acre in 30" rows.
Soil Type: Bradson clay loam.
Soil Test: P = High, K = Medium, and pH = 6.3.
Fertilization: 90 lb N, 90 lb P2O5, and 90 lb K2O/acre as preplant; 100 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Moldboard plowed and disked; Aatrex, Bicep, and one cultivation used for weed control.
 
Test conducted by J. L. Day and H. D. Garrett.