The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia

1999 Soybean, Sorghum Grain and Silage,
Grain Millet, and Summer Annual Forages Performance Tests

Research Report Number 663
February, 2000

J. LaDon Day, Anton E. Coy, and Paul A. Rose, Editors



Griffin, Georgia: Early-Planted Grain Sorghum Hybrid Performance, 1999, Nonirrigated
Company or Brand Name Hybrid Yield1 2-Year Average Yield Test Wt. 50% Bloom2 Plant Ht. Lodging Disease3 Bird Damage4
  bu/acre bu/acre lb/bu days in % rating %
 
DeKalb DK54 112.8 107.8 59.8 66 62 0 . 2
CSC 1489 107.1 . 58.4 62 62 1 . 10
AgriPro X71062 99.9 . 58.1 64 55 0 . 1
CSC CSC0380 95.4 . 58.1 64 59 2 . 4
Pioneer 8305 93.1 . 59.0 66 60 0 . 10
 
Pioneer 8282 91.9 . 57.9 66 60 0 . 6
NK X416 90.9 . 58.8 64 51 0 . 0
Southern States SS115 90.4 . 55.9 64 54 1 . 1
Pioneer 83G66 90.2 . 58.4 66 60 0 . 8
Dekalb DK53 89.7 . 59.5 66 55 0 . 4
 
NK KS 711Y 86.7 . 60.0 61 51 0 . 0
NK X633 83.7 . 58.6 66 50 0 . 0
NK X418 83.6 . 56.3 59 55 1 . 1
Pennington Penngrain Dr 82.8 77.8 57.7 64 55 1 . 0
NK KS989 81.9 . 57.8 68 63 0 . 0
 
Southland Y303E 79.7 . 58.3 67 52 0 . 1
DeKalb DK50A 76.2 . 58.4 67 56 0 . 2
NK K91-T5 72.3 . 58.3 66 55 0 . 1
Southern States SS800 72.1 . 57.7 65 58 0 . 2
Southland Exp. 1414 61.4 . 57.1 68 51 1 . 3
 
Average 87.14 92.8 58.2 65 56 0 . 3
LSD at 10% Level 13.4 10.6 0.8 3 3 N.S.5   N.S.
Std. Err. of Entry Mean 5.7 3.9 0.3 1 1 1   3
 
1. Yields calculated at 14% moisture.
2. Days from planting to 50% bloom.
3. Rated 1 = resistant to 5 = susceptible to foliar diseases.
4. Percent of grain head damaged.
5. CV = 13.0% and df for EMS = 57.
6. 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 26, 1999.
Harvested: September 10, 1999.
Seeding Rate: 110,000 seed/acre in 30" rows.
Soil Type: Cecil sandy clay loam.
Soil Test: P = Medium, K = High, and pH = 6.8.
Fertilization: Preplant: 28 lb N, 56 lb P2O5, and 84 lb K2O/acre. Sidedress: 100 lb N/acre.
Previous Crop: Soybean.
Management: Moldboard plowed and rototilled; Aatrex and one cultivation used for weed control.
 
Test conducted by P. A. Rose and J. L. Day.


Griffin, Georgia: Late-Planted Grain Sorghum Hybrid Performance, 1999, Nonirrigated
Company or Brand Name Hybrid Yield1 2-Year Average Yield Test Wt. 50% Bloom2 Plant Ht. Lodging Disease3 Bird Damage4
  bu/acre bu/acre lb/bu days in % rating %
 
Pioneer 83G66 88.8 . 49.2 61 45 0 . 13
Pioneer 8282 87.1 . 49.2 63 48 0 . 15
Pioneer 8305 83.5 . 50.5 63 45 0 . 16
NK X416 80.3 . 51.8 62 40 0 . 10
NK X633 79.5 . 51.8 58 42 0 . 14
 
Southern States SS560 76.8 . 53.7 56 41 0 . 42
Southern States SS115 74.4 . 50.0 56 40 0 . 23
NK KS 711Y 73.6 . 52.3 60 36 0 . 6
Southern States SS800 71.9 . 49.1 63 41 0 . 9
NK X418 69.9 . 52.2 58 38 0 . 26
 
DeKalb DK48A 69.1 . 51.6 56 40 0 . 29
Southland Y360 63.5 . 46.4 63 51 0 . 20
DeKalb DK50A 63.2 . 45.7 64 47 0 . 15
DeKalb DK52 62.1 . 46.2 61 40 0 . 5
 
Average 74.55 . 50.0 60 42 0 . 17
LSD at 10% Level 6.1   - 3 4 N.S.6   8
Std. Err. of Entry Mean 2.6   - 1 1 0   4
 
1. Yields calculated at 14% moisture.
2. Days from planting to 50% bloom.
3. Rated 1 = resistant to 5 = susceptible to foliar diseases.
4. Percent of grain head damaged.
5. CV = 6.8% and df for EMS = 39.
6. 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: July 19, 1999.
Harvested: November 23, 1999.
Seeding Rate: 125,000 seed/acre in 30" rows.
Soil Type: Appling coarse sandy loam.
Soil Test: P = Medium, K = High, and pH = 6.9.
Fertilization: Preplant: 28 lb N, 56 lb P2O5, and 84 lb K2O/acre. Sidedress: 100 lb N/acre.
Previous Crop: Soybeans.
Management: Moldboard plowed and rototilled; Aatrex and one cultivation used for weed control.
 
Test conducted by P.A. Rose and J. L. Day.