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
Tifton, Georgia:
Mid and Full-Season Corn Hybrid Performance, 2003, Nonirrigated
Yield1
Company or
Brand Name
  Hybrid
Name
2003 3-Year
Avg
  Ears/100
Plants
Ear Grain
Weight
Grain
Qual.2
Grain
Moist.3
Plant
Pop.
Erect
Plants
Leaf
Rust4
SCLB5
--- bu/acre --- no. lb rating % no. % rating rating
DeKalb DKC69-71(RR/YGCB) 165.0 . 107 0.38 2.5 20.1 24067 100 1 1
Golden Acres 8311 156.7 145.2 106 0.33 2.5 17.6 25700 100 3 2
Golden Acres 8681FQ 153.3 146.1 101 0.33 3.0 18.1 26681 100 2 3
Southern States SS842RR 152.3 . 101 0.38 2.5 20.0 23414 100 2 3
Pioneer 31G66 147.4 . 107 0.35 2.5 18.3 22978 100 1 3
NK N 83-N5 146.9 141.6 107 0.33 2.5 18.7 24176 100 2 2
Greenwood 780 146.5 . 104 0.36 3.0 19.5 23305 100 1 1
Croplan Genetics DS822RR 146.1 . 100 0.37 2.0 19.4 23196 100 3 3
AgraTech 905RR 145.5 152.6 104 0.38 3.0 18.9 21671 100 2 2
NK N91-R9* 144.0 149.1 106 0.35 3.0 19.8 22978 100 1 2
Pioneer 32D99 142.9 . 103 0.37 3.0 19.9 22651 100 3 2
Garst 8230IT 141.0 . 104 0.43 2.5 19.6 19493 100 2 3
Croplan Genetics 872RR 140.7 . 102 0.37 2.0 19.0 21780 100 2 1
AgraTech 1701 140.0 . 108 0.33 3.0 19.0 22869 100 1 1
Vigoro V61R36 137.7 . 102 0.34 2.0 19.2 23413 100 2 1
Garst 8288 129.2 130.3 103 0.33 2.5 19.6 22761 100 2 3
Dyna-Gro 58K56 127.7 . 104 0.32 2.0 19.2 22542 100 1 1
AgraTech 893RR 126.4 . 101 0.34 1.5 20.4 21671 100 2 2
Average   143.8 6 144.2 104 0.35 2.5 19.2 23075 100 2 2
LSD at 10% Level 11.6   N.S.7 3 0.04  N.S. 0.6 1937 - - -
Std. Err. of Entry Mean 4.9 3.4   1 0.02 0.4 0.3 818 - - -
*  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.  Leaf Rust rating:  1 = resistant to 5 = highly susceptible.
5.  Southern Corn Leaf Blight rating:  1 = resistant to 5 = highly susceptible.
6.  CV = 6.8%, and df for EMS = 51.
7.  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 4, 2003.
Harvested: August 15, 2003.
Seeding Rate: 27,000 seeds/acre in 30" rows.
Soil Type: Tifton loamy sand.
Soil Test: P = Medium, K = Medium, and pH = 6.7.
Fertilization: 25 lb N, 50 lb P2O5, and 75 lb K2O/acre as preplant; 122 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Paratilled, subsoiled and bedded, rototilled; Prowl, Atrazine, Permit, and Accent used for weed control; 
Telone II used for nematode control.
Test conducted by A. E. Coy, M. D. Pippin, R. Burton, and R. E. Brooke.