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
Midville, 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
Pioneer 32D99 201.5 . 100 0.42 . 17.1 27152 41 1 1
Pioneer 31G66 197.8 . 102 0.41 . 16.3 27007 63 1 1
NK N 83-N5 193.1 207.7 101 0.39 . 17.5 28169 65 1 1
DeKalb DKC69-71(RR/YGCB) 191.5 . 103 0.39 . 17.7 27298 91 1 1
Golden Acres 8681FQ 185.2 196.5 101 0.39 . 15.9 26717 77 1 1
Southern States SS842RR 184.5 . 101 0.37 . 17.3 28459 49 1 2
NK N91-R9* 182.4 189.9 101 0.40 . 17.6 26426 68 1 1
Golden Acres 8311 169.7 186.0 99 0.35 . 16.3 27588 68 1 1
Vigoro V61R36 167.5 . 102 0.35 . 17.0 26427 96 1 1
Greenwood 780 167.2 . 103 0.41 . 16.6 23522 42 1 1
Dyna-Gro 58K56 167.0 . 103 0.34 . 17.6 27298 68 1 1
AgraTech 905RR 166.2 197.8 100 0.35 . 17.1 27153 41 1 1
AgraTech 1701 161.4 . 100 0.36 . 16.4 25991 29 1 1
Croplan Genetics 872RR 160.6 . 101 0.35 . 18.7 26717 74 1 1
Garst 8288 153.0 184.1 101 0.33 . 17.7 26572 75 1 1
AgraTech 893RR 151.7 . 101 0.37 . 17.9 23668 50 1 1
Croplan Genetics DS822RR 148.9 . 101 0.32 . 17.1 25991 36 1 1
Garst 8230IT 122.4 . 100 0.28 . 16.5 25120 43 1 1
Average   170.6 6 193.7 101 0.37 . 17.1 26515 60 1 1
LSD at 10% Level 28.2   N.S.7  N.S.  N.S. 0.6 2232  N.S. - -
Std. Err. of Entry Mean 10.2 4.2   1 0.03   0.2 808 13 - -
NOTE:  On July 19, 2003 strong thunderstorms accompanied by high straight line winds caused considerable lodging of
plants at this experiment site.
*  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 = 12.0%, and df for EMS = 34.
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 21, 2003.
Harvested: August 27, 2003.
Seeding Rate: 28,500 seeds/acre in 30" rows.
Soil Type: Tifton loamy sand.
Soil Test: P = Medium, K = Medium, and pH = 6.1.
Fertilization: 130 lb N, 65 lb P2O5, and 93 lb K2O/acre as preplant; 122 lb N/acre as sidedress.
Previous Crop: Cotton.
Management: Chisel plowed, subsoiled and bedded, rototilled; Atrazined used for weed control;
no irrigation water applied.
Test conducted by A. E. Coy, M. D. Pippin, R. Burton, R. E. Brooke, and R. D. McNeill, IV.