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, Irrigated
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. %
Pioneer 31G66 225.8 . 115 0.54 1.0 19.0 21481 99
Pioneer 32D99 219.2 . 103 0.51 1.0 19.2 24849 100
Croplan Genetics DS822RR 203.9 . 104 0.49 1.0 20.3 23659 98
Southern States SS842RR 197.9 . 112 0.47 1.0 19.7 22543 100
NK N 83-N5 193.1 . 106 0.47 1.0 17.6 22468 100
DeKalb DKC69-70(YGCB) 183.5 . 102 0.42 1.0 18.9 25063 100
DeKalb DKC69-71(RR/YGCB) 181.8 . 106 0.42 1.0 19.0 23669 100
Dyna-Gro 58K56 179.9 . 99 0.47 1.0 18.8 23103 100
AgraTech 1701 167.7 . 97 0.42 1.0 17.8 23451 100
NK N91-R9* 167.4 192.0 100 0.43 1.0 17.1 22325 100
Golden Acres 8311 167.2 . 104 0.43 1.0 17.3 21364 99
Greenwood 780 165.2 . 111 0.42 1.0 17.4 20837 99
Garst 8288 162.1 184.7 129 0.37 1.0 18.2 20054 100
Golden Acres 8681FQ 148.8 . 107 0.39 1.0 18.5 20719 100
AgraTech 905RR 148.5 . 116 0.42 1.0 18.0 17658 100
Garst 8230IT 148.1 . 120 0.29 1.0 18.6 25281 100
Vigoro V61R36 146.7 . 111 0.41 1.0 17.8 18529 100
Greenwood 863* 138.7 . 89 0.46 1.0 22.6 20783 100
Average   174.7 4 188.4 107 0.43 1.0 18.6 22102 100
LSD at 10% Level 22.0   N.S.5 10 0.06 - 2.0 1777  N.S.
Std. Err. of Entry Mean 9.3 4.9   4 0.02 - 0.8 750 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 = 10.6%, 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: 26,500 seeds/acre in 30" rows.
Soil Type: Waynesboro loam.
Soil Test: P = High, K = High, and pH = 6.4.
Fertilization: 75 lb N, 90 lb P2O5, and 180 lb K2O/acre as preplant; 200 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Subsoiled, chisel plowed, disked, and rototilled; Aatrex, Lasso, and Accent used for weed control;
no irrigation water applied.
Test conducted by P. A. Rose, G. Rawls, and J. Stubbs.