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



Field Cage and Greenhouse Ratings of Soybean Cultivars for Resistance to Three Insect Species, 1999
  Field Cage   Greenhouse
Company or Brand Name
Variety
 Corn Earworm   Corn Earworm Velvetbean Caterpillar Soybean Looper
  ------------------------- % defoliation -------------------------
 
Deltapine DP3640 63   91 83 83
Deltapine DP3681 53   65 74 71
Hartz H6191 43   83 71 73
NK S62-62 68   64 65 79
NK S65-50 60   69 67 65
 
Pioneer P9692 41   58 75 80
Public Variety Centennial 86   73 76 80
Public Variety Cobb 91   65 90 74
Public Variety Cook 43   58 60 62
Public Variety Crockett1 16   30 43 30
 
Public Variety Lyon1 48   53 69 47
Public Variey Motte 54   60 90 58
Public Variety TN6-901 44   42 61 50
SGA Benning 84   53 75 65
SGA Boggs 59   53 55 72
 
SGA Prichard 50   58 74 66
Univ. of Ga G92-181 30   53 61 73
Univ. of Ga GatIR81-2961 24   44 57 23
 
LSD (0.10) 14   16 16 18
 
1. Insect resistant genotypes.
 
Test conducted by J. N. All, G. B. Rowan, J. K. Lance, and H. R. Boerma.


Insect Antibiosis Ratings of Selected Soybean Cultivars on Three Insect Species as Measured by Weight Gain in a Seven-Day Leaf Feeding Assay, 1999
Company or Brand Name
Variety
 Corn Earworm Velvetbean Caterpillar Soybean Looper
  ---------- Weight in milligrams ----------
 
Deltapine DP3640 18.0 36.6 9.6
Deltapine DP3681 12.4 57.5 8.2
Hartz H6191 18.8 35.5 16.5
NK S62-62 20.1 42.8 15.5
NK S65-50 18.4 40.3 9.4
 
Pioneer P9692 13.8 46.4 12.4
Public Variety Centennial 9.6 45.4 13.5
Public Variety Cobb 19.6 55.6 10.3
Public Variety Cook 11.9 50.4 8.1
Public Variety Crockett1 7.5 35.3 5.7
 
Public Variety Lyon1 12.4 42.6 6.2
Public Variey Motte 11.8 49.9 5.9
Public Variety TN6-901 12.7 48.9 7.3
SGA Benning 13.4 46.5 13.7
SGA Boggs 12.3 48.3 6.6
 
SGA Prichard 18.3 50.0 9.5
Univ. of Ga G92-181 14.0 40.5 6.5
Univ. of Ga GatIR81-2961 11.0 41.9 6.6
 
LSD (0.10) 10.0 19.0 9.0
 
1. Insect resistant genotypes.
 
Test conducted by J. N. All, D. J. Hulburt, J. K. Lance, and H. R. Boerma.