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
Blairsville, 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. %
NK N 83-N5 233.4 226.1 113 0.50 1.0 21.7 24805 100
Pioneer 32D99 232.9 . 111 0.54 1.0 22.6 23929 100
DeKalb DKC69-70(YGCB) 230.2 . 118 0.49 1.0 21.9 24252 100
Croplan Genetics DS822RR 222.8 . 132 0.46 1.0 23.5 23353 99
Garst 8288 222.3 231.4 108 0.54 1.0 21.2 22990 100
Pioneer 31G66 221.6 . 109 0.52 1.0 21.9 23595 99
NK N91-R9* 219.7 236.3 118 0.47 1.0 22.0 24200 100
AgraTech 1701 216.2 . 124 0.48 1.0 21.5 21780 100
Southern States SS842RR 215.8 . 116 0.48 1.0 23.8 24200 98
DeKalb DKC69-71(RR/YGCB) 206.3 . 134 0.39 1.0 21.6 24321 100
Garst 8230IT 201.9 . 113 0.45 1.0 22.7 24200 100
Vigoro V61R36 180.6 . 109 0.46 1.0 21.9 21745 100
AgraTech 905RR 180.1 . 107 0.47 1.0 22.3 21780 100
Dyna-Gro 58K56 165.2 . 109 0.42 1.0 22.3 21901 99
Average   210.7 4 231.3 116 0.48 1.0 22.2 23361 100
LSD at 10% Level 23.2  N.S.5 11 0.05 - 0.9 1706  N.S.
Std. Err. of Entry Mean 9.7 4.2   5 0.02 - 0.4 716 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 = 9.2%, and df for EMS = 39.
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 30, 2003.
Harvested: October 9, 2003.
Seeding Rate: 25,800 seeds/acre in 30" rows.
Soil Type: Bradson clay loam.
Soil Test: P = Very High, K = High, and pH = 6.3.
Fertilization: 77 lb N, 77 lb P2O5, and 77 lb K2O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Moldboard plowed and disked; Aatrex, Bicep, Basagran, and one cultivation used for weed control.
Test conducted by P. A. Rose and H. D. Garrett.