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

Tifton, 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
DeKalb          DKC68-70      M 12.7 27.8 45.8 43 31363   .
DeKalb          DK 687        M 11.9 25.1 47.5 51 29185 12.4
AgraTech        1701          M 11.9 23.6 50.2 49 26572   .
DeKalb          DK 697        M 11.8 22.8 51.7 49 30274   .
Croplan Genetics 827           M 11.7 25.3 46.3 45 30710   .
Golden Acres 8681FQ        M 11.6 24.3 47.9 54 29839 11.4
Southern States SS859CL       M 11.4 23.0 49.6 56 30710 12.7
NK              N 8811        M 11.3 24.0 47.2 52 26790 12.1
Pioneer         31G98         S 11.2 24.1 46.6 55 29621   .
Zimmerman       1851W         S 11.2 21.9 51.0 49 30274 12.1
Croplan Genetics DS740         S 10.7 19.9 53.9 53 30492   .
Golden Acres 8311          M 10.6 21.3 49.6 54 28532 11.2
AgraTech 905RR         M 10.6 21.8 48.8 47 27007   .
Pioneer  31R88         M 10.6 22.2 47.6 53 29839 11.8
Garst/AgriPro 8288          M 10.2 19.8 51.6 53 30928   .
Croplan Genetics 733Bt         S 10.1 18.8 53.7 54 27661   .
Pioneer 33J56         S  9.9 19.2 51.7 52 31146 10.9
Croplan Genetics DS820         S  9.7 20.2 48.2 57 28967   .
NK N 83-N5       M  9.7 17.7 54.7 51 26789 11.3
AgraTech  890           M  9.2 19.5 47.3 50 26760 10.1
Croplan Genetics DS723         M  9.2 18.3 50.0 53 26136   .
Average                       10.82 21.9 49.6 51 29028 11.6
LSD at 10% Level 0.9 2.0 2.2 2 2564 1.0
Std. Err. of Entry Mean 0.4 0.8 0.9 1 1085 0.4
Full-Season
Pioneer 30F33         F 11.9 26.6 44.6 42 29621 11.6
NK N91-R9        F 11.3 24.6 46.1 53 30492 12.1
Southland Seed Co. SM-135        F 11.3 27.4 41.2 45 30274   .
Southland Genetics SG1877        F 11.2 27.5 40.8 41 29621 12.0
AgraTech 1836          F 11.1 21.7 51.4 45 28968 12.6
Greenwood 830           F  9.9 21.4 46.0 48 28096 11.4
Greenwood 845           F  9.6 23.4 41.0 38 26354 11.1
Greenwood 835           F  9.5 22.0 42.9 42 27879 10.0
Southern States  SS1060        F  9.0 20.2 45.2 48 27225   .
Southland Seed Co. SG1836        F  9.0 22.0 40.8 45 24829   .
Southland Seed Co. SM-128        F  8.9 20.6 43.6 47 25700   .
AgraTech 1010RR        F  8.1 19.4 41.5 45 24638   .
Southland Seed Co. SM-130        F  7.9 19.1 41.0 48 25800   .
Average                        9.93 22.7 43.6 45 27654 11.6
LSD at 10% Level  1.3 3.3 2.4 5 2701   N.S.4
Std. Err. of Entry Mean      0.5 1.4   1.0 2 1131 0.6
1.  Yields calculated at 15.5% moisture.
2.  CV = 7.2%, and df for EMS = 60.
3.  CV = 11.1%, and df for EMS = 36.
4.  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 10, 2001.
Harvested: August 2, 2001.
Seeding Rate: 31,600 seeds/acre in 30" rows.
Soil Type: Tifton loamy sand.
Soil Test: P = High, K = Medium, and pH = 6.5.
Fertilization: 65 lb N, 130 lb P2O5, and 195 lb K2O/acre as preplant; 212 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Paraplowed, subsoiled, bedded, and rototilled; Prowl, Atrazine, Permit, and Accent used for weed
control; Nemacur used for nematode control; Furadan used for insect control; irrigated 9.0 inches.
Test conducted by A. E. Coy, M. D. Pippin, R. Brooke, and T. Hancock.
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