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
Tifton, 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
Pioneer 32D99 S 13.9 31.3 44.5 55 32234 .
DeKalb DKC69-71(RR/YGCB) M 13.7 29.8 45.9 52 33324 .
NK N 83-N5 M 13.4 26.8 50.2 54 32670 14.1
Pioneer 33V15 S 13.3 26.3 50.4 56 31145 .
NK N91-R9 F 12.9 30.0 42.9 56 32017 13.3
Dyna-Gro 58K22 S 12.7 28.1 45.5 55 32670 .
Pioneer 33J56 S 12.7 26.8 47.3 57 30274 .
Greenwood 780 M 12.4 27.1 45.7 54 30492 13.4
AgraTech 893RR M 12.2 27.9 43.8 47 28968 .
Croplan Genetics 827RR S 12.1 27.1 44.8 53 30928 12.7
NK 1851W S 12.0 27.8 43.2 52 28750 13.0
Pioneer 30F33 F 11.9 30.1 39.7 48 30710 12.1
AgraTech 1020 F 11.9 28.5 41.9 45 27225 .
Dyna-Gro 58K56 M 11.9 25.9 45.9 55 29403 .
DeKalb DKC67-60(RR) S 11.9 26.3 45.2 51 30710 .
Golden Acres 8681FQ M 11.9 25.9 45.7 55 30928 12.5
AgraTech 1836 F 11.8 28.4 41.8 48 29621 12.1
Croplan Genetics 780RR/Bt M 11.5 24.1 47.6 54 30710 .
AgraTech 919RR M 11.4 24.1 47.1 52 29621 12.8
Southern States SS842RR M 11.3 24.0 47.0 56 31581 12.9
Croplan Genetics DS830 M 11.3 25.1 45.1 54 29839 .
Golden Acres 7511 M 11.3 23.2 49.0 57 30492 .
Greenwood 863 F 11.0 28.5 38.4 48 30274 .
Garst 8230IT M 10.9 22.6 48.1 58 28750 .
AgraTech 2852 F 10.8 23.9 45.4 48 29185 .
Garst 8288 M 10.7 22.7 47.4 62 33323 11.8
Greenwood 835 F 10.6 26.5 40.0 44 25483 11.6
Croplan Genetics 895Bt M 10.6 22.2 47.6 58 29621 .
Croplan Genetics DS822RR M 10.4 22.5 46.5 57 30274 12.6
AgraTech 890RR M 10.4 25.5 40.8 49 28096 .
Greenwood 865 F 9.7 25.0 38.8 48 24612 10.9
AgraTech 2851 F 9.6 24.1 39.9 47 30928 .
Average   11.7 1 26.2 44.8 53 30152 12.5
LSD at 10% Level 1.0 2.3 2.5 3 2942 0.9
Std. Err. of Entry Mean     0.4 1.0   1.0 1 1252 0.4
1.  CV = 7.3%, and df for EMS = 93.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted: April 7, 2003.
Harvested: July 31, 2003.
Seeding Rate: 34,000 seeds/acre in 30" rows.
Soil Type: Tifton loamy sand.
Soil Test: P = Medium, K = Medium, and pH = 6.3.
Fertilization: 182 lb N, 52 lb P2O5, and 182 lb K2O/acre as preplant; 122 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Paratilled, subsoiled and bedded, rototilled; Prowl, Atrazine, Permit, and Accent used for weed
control; Telone II used for nematode control; irrigated 2.5 inches.
Test conducted by A. E. Coy, M. D. Pippin, R. Burton, and R. E. Brooke.