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

2001 Corn Performance Tests
Research Report Number 675
November 2001

Griffin, Georgia:
Evaluation of Corn Hybrids for Silage, 2001, Irrigated
Company or Hybrid Maturity Forage Yield Dry Grain Plant 2-Yr Avg
Dry Forage
Brand Name   Name Class   Dry1 Green   Matter Portion Population Yield
tons/acre % % no. tons/acre
Short and Mid-Season
Southern States  SS859CL        M 12.6 34.2 36.7  50  30036   9.6
DeKalb  DK 697         M 12.3 33.7 36.4  45  31517     .
AgraTech    1701           M 12.1 34.6 35.1  49  30250     .
Pioneer  31G98          S 11.8 33.1 35.6  46  29282     .
Pioneer  33J56          S 11.6 33.1 35.1  52  30734   9.1
NK N 8811         M 11.1 32.2 34.5  49  28072   8.9
Pioneer  31R88          M 11.1 31.3 35.4  52  28704   8.9
AgraTech  905RR          M 11.0 32.4 34.0  48  26487     .
DeKalb  DKC68-70       M 10.9 32.3 33.8  45  29040     .
Croplan Genetics 827            M 10.3 34.1 30.1  46  30734     .
Zimmerman  1851W          S 10.2 30.1 33.6  43  28798   8.5
Garst/AgriPro  8288           M 10.1 26.3 38.3  57  29349     .
Croplan Genetics 733Bt          S   9.4 23.1 40.4  55  28807     .
Average                   11.12 31.6 35.3  49  29370   9.0
LSD at 10% Level   N.S.3 4.6 2.1 5   N.S.    N.S.
Std. Err. of Entry Mean  0.8 1.9 0.9 2 1431   0.7
Full-Season
Southland Genetics SG1877         F 14.7 37.1 39.7  41  30437 10.6
AgraTech 1836           F 13.0 30.0 43.1  47  30078     .
Pioneer 30F33          F 12.9 34.7 37.2  40  31082   9.5
Greenwood 830            F 11.5 29.0 39.4  45  29040     .
Southland Seed Co. SM-128         F 10.8 27.5 39.5  46  27497     .
Southern States SS1060         F 10.6 29.5 35.8  45  30492     .
NK N91-R9         F   9.9 30.0 32.9  48  32014    8.2
AgraTech 1010RR         F   9.7 25.3 38.2  42  28704     .
Southland Seed Co. SM-135         F   9.6 27.1 35.3  41  27855     .
Southland Seed Co. SG1836         F   9.1 26.2 34.8  43  28072     .
Average                   11.24 29.6 37.6  44  29527  9.4
LSD at 10% Level  1.4 2.6 2.5 2 1958   N.S.
Std. Err. of Entry Mean      0.6 1.1   2.8 2 813  0.9
1.  Yields calculated at 15.5% moisture.
2.  CV = 14.0%, and df for EMS = 36.
3.  The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was
     not calculated.
4.  CV = 10.2%, and df for EMS = 27.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted: April 17, 2001.
Harvested: Short and Mid-Season:  August 3, 2001.
Full-Season:  August 17, 2001.
Seeding Rate: 31,000 seeds/acre in 30" rows.
Soil Type: Cecil sandy clay loam.
Soil Test: P = High, K = High, and pH = 7.1.
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, Lasso, and one cultivation used for weed control;
irrigated 4.0 inches.
Test conducted by P. A. Rose.
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