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, 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
DeKalb DKC69-71(RR/YGCB) 247.6 . 121 0.46 2.0 20.9 26463 100 4 1
NK N91-R9* 236.3 225.4 104 0.50 1.0 19.5 26898 99 2 2
Pioneer 31G66 230.1 . 106 0.47 2.0 18.5 26681 100 2 1
Pioneer 32D99 227.3 . 107 0.48 3.0 19.5 26136 100 4 1
Croplan Genetics DS822RR 220.1 . 103 0.48 2.5 19.4 26572 100 3 2
Golden Acres 8681FQ 218.4 200.7 103 0.48 3.5 18.2 26027 100 3 2
Croplan Genetics 872RR 214.4 . 103 0.45 2.0 18.8 26899 100 2 2
Southern States SS842RR 206.5 . 101 0.47 2.0 19.3 25374 99 4 1
AgraTech 1701 202.2 . 106 0.45 1.5 19.6 25047 100 2 1
NK N 83-N5 201.8 201.5 109 0.42 2.0 18.8 25810 100 4 1
Garst 8288 198.6 196.3 100 0.45 2.5 19.0 25809 100 3 2
Golden Acres 8311 197.8 197.3 104 0.43 2.0 17.8 25483 100 4 1
Greenwood 780 195.2 . 110 0.45 2.5 19.8 23523 100 2 1
Garst 8230IT 184.9 . 102 0.42 2.5 19.6 25483 97 3 2
AgraTech 893RR 182.3 . 99 0.47 2.0 21.2 23631 100 3 1
Vigoro V61R36 179.1 . 107 0.39 1.5 18.9 25156 99 3 1
AgraTech 905RR 176.6 195.2 102 0.43 3.0 20.3 23849 100 3 1
Dyna-Gro 58K56 176.2 . 101 0.40 2.0 19.4 25592 99 3 1
Average   205.3 6 202.7 105 0.45 2.2 19.4 25579 99 3 1
LSD at 10% Level 13.0   N.S.7 4 0.03 0.9 1.0 1371 1 - -
Std. Err. of Entry Mean 5.4 3.5   2 0.01 0.3 0.4 578 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.  Leaf Rust rating:  1 = resistant to 5 = highly susceptible.
5.  Southern Corn Leaf Blight rating:  1 = resistant to 5 = highly susceptible.
6.  CV = 5.3%, 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 16, 2003.
Seeding Rate: 28,000 seeds/acre in 30" rows.
Soil Type: Tifton loamy sand.
Soil Test: P = Medium, K = Medium, and pH = 6.3.
Fertilization: 182 lb N, 52 lb P2O5, and 182 lb K2O/acre as preplant; 122 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Paratilled, subsoiled and bedded, rototilled; Prowl, Atrazine, and Accent used for weed
control;  Telone II used for nematode control; irrigated 2.5 inches.
Test conducted by A. E. Coy, M. D. Pippin, R. Burton, and R. E. Brooke.