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.