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
Plains, Georgia:
Mid and Full-Season Corn Hybrid Performance, 2003, Irrigated
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
Croplan Genetics DS822RR 175.7 . 101 0.43 . 16.6 23414 61 4 3
NK N91-R9* 172.9 177.6 102 0.39 . 16.6 24829 74 4 3
AgraTech 1701 171.3 . 102 0.43 . 16.2 22107 81 3 2
DeKalb DKC69-71(RR/YGCB) 163.2 . 102 0.36 . 17.0 25483 92 4 3
Pioneer 31G66 158.3 . 104 0.39 . 15.6 21998 92 4 1
Pioneer 32D99 158.3 . 103 0.34 . 16.6 25701 73 4 2
Garst 8288 155.0 190.4 101 0.37 . 16.9 23740 88 3 2
Garst 8230IT 151.7 . 103 0.34 . 16.1 24720 87 4 3
Golden Acres 8681FQ 143.3 172.3 100 0.34 . 15.3 23413 62 4 3
Golden Acres 8311 140.8 168.3 104 0.31 . 15.5 24394 75 4 1
Vigoro V61R36 138.4 . 101 0.32 . 16.3 24176 89 4 1
Dyna-Gro 58K56 138.4 . 102 0.32 . 16.3 23740 69 4 2
Greenwood 780 137.2 . 101 0.33 . 16.4 23849 50 3 3
AgraTech 905RR 136.6 174.8 101 0.36 . 15.6 21344 63 4 2
NK N 83-N5 135.2 169.7 102 0.30 . 16.3 24829 53 3 1
Southern States SS842RR 128.1 . 102 0.29 . 16.5 24938 78 4 2
Croplan Genetics 872RR 120.4 . 100 0.28 . 17.2 24938 44 4 1
AgraTech 893RR 115.8 . 100 0.32 . 17.7 21236 81 3 1
Average   146.7 6 175.5 102 0.35 . 16.4 23825 73 4 2
LSD at 10% Level 26.9   N.S.7  N.S. 0.08 0.6 1716 21 - -
Std. Err. of Entry Mean 11.4 4.2   1 0.03   0.3 724 8 - -
*  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 = 15.5%, 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: March 27, 2003.
Harvested: August 18, 2003.
Seeding Rate: 28,000 seeds/acre in 30" rows.
Soil Type: Faceville sandy loam.
Soil Test: P = Medium, K = High, and pH = 6.1.
Fertilization: 120 lb N, 80 lb P2O5, and 80 lb K2O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Subsoiled and rototilled; Prowl, Atrazine and one cultivation used for weed control; irrigated 7.0 inches.
Test conducted by A. E. Coy, M. D. Pippin, R. Burton, R. E. Brooke, J. L. Day, and R. R. Pines.