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
Griffin, Georgia:
Evaluation of Corn Hybrids for Silage, 2003, Irrigated
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 DKC67-60(RR) S 12.9 32.7 39.4 41 30734 .
DeKalb DKC69-71(RR/YGCB) M 12.8 33.4 38.2 46 29282 .
AgraTech 1836 F 12.4 32.9 37.7 42 30008 12.4
AgraTech 919RR M 12.3 30.8 39.9 50 27104 .
Greenwood 863 F 12.0 34.5 34.7 38 27830 .
NK N 83-N5 M 12.0 28.7 42.2 54 28556 11.9
Southern States SS842RR M 11.9 33.4 35.6 51 31460 12.4
NK N91-R9 F 11.8 33.9 34.9 47 30250 12.2
Croplan Genetics 895Bt M 11.8 27.8 42.4 53 26620 .
Pioneer 30F33 F 11.6 33.6 34.7 37 27104 12.2
Pioneer 32D99 S 11.5 31.6 36.4 50 29040 .
NK 1851W S 11.5 33.5 34.4 42 27346 11.2
Garst 8230IT M 11.3 29.3 38.7 49 27830 .
Croplan Genetics 780RR/Bt M 11.2 28.4 39.7 49 30492 .
Croplan Genetics 827RR S 11.2 30.7 36.5 49 29040 11.7
Greenwood 835 F 11.1 34.1 32.7 40 23716 12.0
Dyna-Gro 58K22 S 11.0 25.5 42.9 52 28556 .
Golden Acres 7511 M 10.8 26.2 41.1 51 28556 .
Pioneer 33J56 S 10.8 26.4 40.9 52 26620 .
AgraTech 1020 F 10.8 30.6 35.2 43 24200 .
Garst 8288 M 10.6 26.4 40.1 54 27346 10.4
Croplan Genetics DS830 M 10.6 26.7 39.5 50 26620 .
Golden Acres 8681FQ M 10.4 26.6 39.0 52 29766 .
Dyna-Gro 58K56 M 10.1 27.7 36.6 50 27830 .
Greenwood 780 M 10.0 25.3 39.5 50 30250 10.8
Greenwood 865 F 9.1 30.1 30.2 28 22022 .
Average 11.3 1 30.0 37.8 47 28007 11.7
LSD at 10% Level 1.4 3.0 3.4 6 2786  N.S.2
Std. Err. of Entry Mean     0.6 1.3   1.4 3 1133 0.3
1.  CV = 10.9%, and df for EMS = 75.
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 4, 2003.
Harvested: August 7, 2003.
Seeding Rate: 32,500 seeds/acre in 30" rows.
Soil Type: Pacolet coarse sandy loam.
Soil Test: P = Medium, K = High, and pH = 6.1.
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, disked, and rototilled; Aatrex, Lasso, and one cultivation used for weed control;
irrigated 1.0 inch.
Test conducted by P. A. Rose.