The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
2003 Corn Performance Tests
Research Report Number 690
October 2003
Table of Contents
Blairsville, Georgia:
Evaluation of Corn Hybrids for Silage, 2003, Nonirrigated
Company or Hybrid Maturity Forage Yield Dry Grain Plant 2-Yr Avg
Dry Forage
Brand Name   Name Class   Dry Green   Matter Portion Population Yield
tons/acre % % no. tons/acre
DeKalb DKC69-71(RR/YGCB) M 12.3 29.9 41.0 44 28314 .
NK N91-R9 F 12.0 37.6 31.8 41 28314 11.6
NK N 83-N5 M 11.9 30.0 39.5 49 27588 11.1
Croplan Genetics 895Bt M 11.5 30.3 37.7 47 29766 .
Greenwood 863 F 11.4 34.1 33.2 35 26620 .
Greenwood 865 F 11.2 39.0 28.6 34 27830 .
Southern States SS842RR M 11.0 30.6 35.9 40 28798 10.5
Croplan Genetics DS830 M 10.7 27.0 39.8 43 27104 .
Pioneer 33V15 S 10.7 24.2 44.0 46 25168 .
Greenwood 780 M 10.6 30.3 35.2 52 27588 11.0
Pioneer 33J56 S 10.4 27.6 37.7 43 27465 .
Dyna-Gro 58K22 S 10.4 31.1 33.2 43 29583 .
Garst 8288 M 10.3 25.5 40.1 53 26620 9.9
Garst 8230IT M 10.1 29.0 34.8 48 27036 .
DeKalb DK67-60(RR) S 10.0 27.9 36.0 45 27830 .
AgraTech 1020 F 9.7 31.1 31.1 34 26620 .
NK 1851W S 9.7 27.5 35.2 41 28556 10.6
Pioneer 32D99 S 9.6 28.5 33.6 45 26136 .
Croplan Genetics 827RR S 9.2 27.3 33.7 42 27588 9.3
AgraTech 919RR M 9.2 26.7 34.7 42 28556 .
Dyna-Gro 58K56 M 9.2 26.4 34.8 41 27588 .
Croplan Genetics 780RR/Bt M 8.5 24.8 34.6 50 28072 .
Greenwood 835 F 7.5 29.0 25.8 41 21980 8.5
Average   10.3 1 29.4 35.3 43 27423 10.3
LSD at 10% Level 1.5 3.6 2.9 8 3048   N.S.2
Std. Err. of Entry Mean     0.6 1.5   1.2 4 1292 0.4
1.  CV = 12.4%, and df for EMS = 66.
2.  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 30, 2003.
Harvested: September 10, 2003.
Seeding Rate: 30,000 seeds/acre in 30" rows.
Soil Type: Bradson clay loam.
Soil Test: P = High, K = High, and pH = 6.2.
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, Basagran, and one cultivation used for weed control.
Test conducted by P. A. Rose and H. D. Garrett.