Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia		 Research Report
Number 668
November, 2000
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Blairsville, Georgia: Evaluation of Corn Hybrids for Silage, 2000, Nonirrigated
Company or   Hybrid Maturity   Forage Yield   Dry Grain Plant 2-Year Average Dry
Brand Name   Name Class   Dry Green   Matter Portion Population Forage Yield
          tons/acre   % % no. tons/acre
Short and Mid-Season                  
                       
Pioneer   31R88 M   14.7 34.1   43.2 49 26862 .
Pioneer   33J56 S   14.3 35.0   40.6 51 30008 13.5
Southern States   SS849CL M   13.9 32.6   42.5 52 27346 12.7
Pioneer   3154 M   13.8 34.9   39.6 49 28072 13.4
NK   N 8811 M   13.3 36.3   36.5 48 30492 13.0
                       
Southern States   SS859CL M   13.2 35.2   37.4 51 28556 12.3
NK   N 83-N5 M   12.8 31.2   40.8 52 26154 .
Pioneer   32k61 S   11.9 28.6   41.9 48 25168 11.8
DeKalb   DK 687 M   10.9 32.7   33.3 52 27588 10.8
Southern States   SS897 M   10.7 31.4   34.4 50 28072 10.3
                       
Average     12.91 33.2   39.0 50 27832 12.2
LSD at 10% Level     1.8 4.0   3.1 N.S.2 N.S. 1.5
Std. Err. of Entry Mean     0.7 1.6   1.2 2 1695 0.6
                       
Full-Season                      
                       
NK   McNair 508 F   12.1 32.8   36.7 42 25168 .
Pioneer   30F33 F   11.9 35.4   33.5 33 30492 .
AgraTech   1177 F   11.3 33.3   33.8 38 28121 .
Southland Genetic   SG1877 F   11.0 30.9   35.5 36 26862 .
Southern States   SS1150 F   11.0 28.9   37.9 37 26620 .
                       
NK   N91-R9 F   10.6 31.9   33.2 47 24684 .
Greenwood   835 F   9.5 27.6   34.7 38 24894 .
                       
Average     11.03 31.5   35.0 39 26691 .
LSD at 10% Level     N.S. 4.1   2.0 5 N.S.  
Std. Err. of Entry Mean     0.7 1.7   0.8 2 1604  
                       
1. CV = 11.5%, and df for EMS = 27.
2. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated.
3. CV = 12.4%, and df for EMS = 18.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10).
Planted: May 2, 2000.
Harvested: September 5, 2000.
Seeding Rate: 30,500 seeds/acre in 30" rows.
Soil Type: Bradson clay loam.
Soil Test: P = High, K = Medium, and pH = 6.8.
Fertilization: 77 lb N, 77 lb P2O5, and 77 lb K2O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Moldboard plowed and disked; Aatrex, Bicep, and one cultivation used for weed control.
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Test conducted by P. A. Rose and H. D. Garrett.
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