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
Quincy, Florida: Mid and Full-Season Corn Hybrid Performance, 2003, Irrigated
			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.	%
Pioneer		32D99	163.6	.		99	0.42	1.3	20.5	23520	98
Greenwood		780	154.0	.		108	0.35	1.1	18.9	23599	93
DeKalb		DKC69-71(RR/YGCB)	152.8	.		101	0.38	1.1	19.8	23836	95
Greenwood		863*	145.8	.		121	0.34	1.9	28.6	23599	86
Pioneer		31G66	144.7	.		107	0.35	1.1	18.1	22336	92
NK		N 83-N5	138.2	147.0		99	0.35	1.4	17.8	22731	97
Croplan Genetics		DS822RR	138.0	.		102	0.35	1.5	20.9	23204	94
NK		N91-R9*	131.1	125.6		98	0.34	1.1	19.6	23441	93
Garst		8288	130.7	132.8		102	0.32	1.6	18.8	23599	91
Southern States		SS842RR	130.6	.		100	0.34	1.3	20.2	22731	97
Vigoro		V61R36	129.4	.		101	0.33	1.0	18.9	23125	98
Dyna-Gro		58K56	123.4	.		105	0.31	1.5	19.4	22652	99
Garst		8230IT	114.9	.		98	0.30	1.4	19.5	23283	95
Average			138.2 4	135.1		103	0.34	1.3	20.1	23204	94
LSD at 10% Level			17.1	N.S.5		7	0.04	N.S.	1.3	826	5
Std. Err. of Entry Mean			7.1	3.5		3	0.02	0.2	0.5	346	2
*  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 = 10.3%, and df for EMS = 36.
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 1, 2003.
Harvested:	August 15, 2003.
Seeding Rate:	24,000 seeds/acre in 36" rows.
Soil Type:	Dothan sandy loam.
Soil Test:	P = Medium, K = Medium, and pH = 5.6.
Fertilization:	18 lb N, 54 lb P2O5, and 108 lb K2O/acre as preplant; 153 lb N/acre as sidedress.
Previous Crop:	Soybean.
Management:	Subsoiled and strip tilled; Aatrex, Prowl, Permit, and Accent used for weed control; Phorate and Lorsban used for insect control; no irrigation water applied.
Test conducted by B. Kidd.