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
Calhoun, Georgia:
Mid and Full-Season Corn Hybrid Performance, 2003, Nonirrigated
Yield1
Company or
Brand Name
  Hybrid
Name
2003 3-Year
Average
  Ears/100
Plants
Ear Grain
Weight
Grain
Quality2
Grain
Moisture3
Plant
Population
Erect
Plants
--- bu/acre --- no. lb rating % no. %
Croplan Genetics DS822RR 209.4 . 109 0.53 1.0 19.7 21453 99
Southern States SS842RR 206.7 . 107 0.54 1.0 19.7 21127 100
Garst 8230IT 205.7 . 107 0.54 1.0 19.8 21236 100
Pioneer 32D99 205.5 . 106 0.56 1.0 19.1 20473 100
DeKalb DKC69-71(RR/YGCB) 201.9 . 108 0.48 1.0 19.5 22869 100
NK N91-R9* 187.0 142.6 106 0.53 1.0 19.7 20146 100
NK N 83-N5 185.0 . 110 0.47 1.0 17.4 20473 100
Pioneer 31G66 183.4 . 112 0.45 1.0 17.9 20800 100
DeKalb DKC69-70(YGCB) 178.9 . 105 0.53 1.0 20.3 19166 100
Greenwood 780 176.1 . 107 0.50 1.0 18.5 19384 99
Garst 8288 173.2 138.4 105 0.48 1.0 17.7 19820 99
AgraTech 905RR 164.9 . 105 0.49 1.0 17.4 18622 99
Golden Acres 8681FQ 164.3 . 101 0.46 1.0 17.8 20473 100
AgraTech 1701 163.9 . 103 0.50 1.0 18.4 18622 97
Vigoro V61R36 154.9 . 98 0.48 1.0 18.7 19384 100
Golden Acres 8311 151.4 . 103 0.47 1.0 17.6 18186 100
Greenwood 863* 144.0 . 98 0.51 1.0 24.5 18078 99
Dyna-Gro 58K56 143.2 . 107 0.41 1.0 18.0 18949 100
Average   177.7 4 140.5 105 0.50 1.0 19.0 19959 99
LSD at 10% Level 16.9   N.S.5  N.S. 0.06 - 0.8 2194  N.S.
Std. Err. of Entry Mean 7.1 3.5   3 0.02 - 0.3 926 1
*  Full-season hybrid.
1.  Yields calculated at 15.5% moisture.
2.  Grain quality rating:  1 = excellent to 5 = poor.
3.  Grain moisture at harvest.
4.  CV = 8.0%, and df for EMS = 51.
5.  The F-test indicated no statistical differences at the alpha = .10 probability level; therefore a 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 15, 2003.
Harvested: September 11, 2003.
Seeding Rate: 23,000 seeds/acre in 30" rows.
Soil Type: Waynesboro loam.
Soil Test: P = High, K = High, and pH = 6.4.
Fertilization: 50 lb N, 47 lb P2O5, and 70 lb K2O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Subsoiled, chisel plowed, disked and rototilled; Aatrex, Lasso, and Accent used for weed control.
Test conducted by P.A. Rose, G. Rawls, and J. Stubbs.