2002 Corn Performance Tests Table of Contents
The Georgia Agricultural Experiment Station
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 684
October 2002
Tifton, Georgia:
Evaluation of Corn Hybrids for Silage, 2002, 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
Short and Mid-Season
DeKalb              DKC69-70(YG)    M 16.4 33.0 49.7 51  31721   . 
Pioneer             31G98           S 15.2 32.7 46.6 54  32301 13.2
NK                  N 83-N5         M 14.7 26.7 55.8 55  31933 12.2
Croplan Genetics    DS822RR         M 14.7 30.0 49.0 53  31037   . 
Dyna-Gro            5518RR          S 14.6 28.6 51.0 55  31254   . 
Pioneer             31R88           M 14.5 32.7 44.2 52  30383 12.5
Southern States     SS842RR         M 14.4 28.0 51.7 56  30559   . 
Greenwood           780             M 14.4 27.9 51.6 52  29294   . 
AgraTech            919             M 14.2 29.6 48.0 52  28641   . 
Zimmerman           1851W           S 14.0 28.3 49.6 50  31037 12.6
Dyna-Gro            5515            S 13.8 27.6 50.0 55  32561   . 
AgraTech            785             S 13.7 31.4 43.6 58  30166   . 
Croplan Genetics    DS738           S 13.5 25.3 53.4 53  31363   . 
AgraTech            905RR           M 13.4 29.0 46.3 54  29294 12.0
Dyna-Gro            5516RR          S 13.4 25.9 52.0 53  30928   . 
Croplan Genetics    827RR           S 13.3 28.5 46.9 53  29688   . 
Golden Acres        8681FQ          M 13.1 26.3 49.6 55  29076 12.3
Garst/AgriPro       8288            M 12.8 24.6 52.3 60  29839 11.5
DeKalb              DK687RR         M 12.7 27.4 46.4 52  31472   . 
DeKalb              DKC68-70(YG)    M 12.5 27.1 46.1 52  30710   . 
Croplan Genetics    818RR           S 12.3 25.3 48.4 56  30710   . 
DeKalb              DKC65-00(RR)    S 12.0 23.3 51.4 57  30710   . 
Croplan Genetics    DS740           S 11.8 21.8 54.1 57  30165 11.2
Golden Acres        7885            M 11.4 22.5 50.8 60  30928   . 
Average                    13.61 27.6 49.5 54  30657 12.2
LSD at 10% Level 1.0 2.4 2.9 2 1574 0.8
Std. Err. of Entry Mean 0.4 1.0 1.2 1 667 0.3
Full-Season
Greenwood           830             F 14.1 31.3 45.1 48  29455 12.0
NK                  N91-R9          F 13.8 29.9 46.4 50  30819 12.6
Greenwood           860             F 13.4 29.2 45.8 46  29484   . 
Greenwood           835             F 12.6 28.8 43.9 46  28314 11.0
AgraTech            1836            F 12.5 24.7 50.9 47  28314 11.8
AgraTech            1010RR          F 12.3 26.6 46.3 45  27225 10.2
Pioneer             30F33           F 12.3 27.1 45.1 49  28750 12.1
AgraTech            AT97-5-32       F 12.2 24.5 49.6 51  27878   . 
Greenwood           865             F 12.0 27.0 44.5 41  29185   . 
Southland           8130            F 11.9 28.7 41.6 47  27552   . 
AgraTech            AT97-4-78       F 11.1 24.4 45.5 50  27443   . 
Average                    12.62 27.5 45.9 47  28584 11.6
LSD at 10% Level 1.4 3.3 2.3 2 1942   N.S.3
Std. Err. of Entry Mean     0.6 1.4   1.0 1 809 0.5
1.  CV = 6.0%, and df for EMS = 69.
2.  CV = 9.2%, and df for EMS = 30.
3.  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: March 26, 2002.
Harvested: July 18, 2002.
Seeding Rate: Short and Mid-Season:  33,000 seeds/acre in 30" rows.
Full-Season:  31,000 seeds/acre in 30" rows.
Soil Type: Tifton loamy sand.
Soil Test: P = High, K = Medium, and pH = 6.4.
Fertilization: 65 lb N, 130 lb P2O5, and 195 lb K2O/acre as preplant; 234 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Subsoiled and bedded, rototilled; Prowl, Atrazine, Permit and Accent used for weed control;
Telone II used for nematode control, irrigated 13.0 inches.
Test conducted by A. E. Coy, M. D. Pippin, R. E. Brooke, and T. L. Hancock.