The Georgia Agricultural Experiment Stations College of Agricultural and Environmental Sciences The University of Georgia								Research Report Number 691 December 2003
								Table of Contents

Griffin, Georgia: Early-Planted Soybean Variety Performance, 2003, Irrigated
			2-Year Average Yield	2003 Data
Company or Brand Name		Variety	2-Year Average Yield	Rank	Yield¹	Maturity	Plant Ht	Lodg.²	Wt of 100 Seed	Seed Quality³
			bu/acre		bu/acre	date	in	rating	gm	rating
Maturity Group V

Asgrow		AG5903	54.8	2	51.0	10/06	28	1.3	13.4	1.0
DynaGro		3562NRR	54.3	1	53.9	10/03	26	1.3	15.6	1.2
DPL		DP5806RR	49.8	10	43.8	10/08	31	1.3	12.0	1.2
SS		RT5999N	47.9	8	44.4	10/02	25	1.0	15.5	1.2
DPL		DP5915RR	47.6	16	42.1	10/05	27	1.0	14.8	1.0

Public Variety		Lonoke	46.9	12	42.6	10/04	27	1.3	12.6	1.0
Public Variety		UARK5896	46.6	18	40.5	10/02	26	1.0	13.8	1.0
Public Variety		Caviness	45.0	21	39.2	09/29	23	1.0	16.4	1.3
SS		RT587N	43.1	25	35.9	10/08	27	1.0	14.1	1.0
Public Variety		Hutcheson	41.1	27	33.6	09/29	21	1.3	15.1	1.0

SS		RT557N	39.7	29	29.3	09/28	25	1.0	13.3	1.0
Terral		TVX56R1B2	.	3	47.9	09/30	30	1.0	12.7	1.0
NK		S57-P1	.	4	47.6	10/02	26	1.3	14.3	1.2
AGSouth		AGS E-572	.	5	45.3	09/28	23	1.0	12.5	1.0
Pioneer		95B96	.	6	45.0	10/06	31	1.0	13.5	1.2

SS		RT5930N	.	7	44.9	10/04	28	1.0	13.3	1.2
Public Variety		CavinessRR	.	9	44.0	09/30	25	1.0	14.2	1.0
DPL		DP5634RR	.	11	43.2	10/04	26	1.3	14.9	1.0
Public Variety		R97-1634	.	13	42.6	10/02	27	1.0	15.2	1.2
SS		RT5602N	.	14	42.4	09/26	24	1.0	15.0	1.0

Public Variety		Ozarks	.	15	42.2	09/27	24	1.0	14.0	1.2
AGSouth		AGS E-531	.	17	41.7	09/28	30	1.0	12.5	1.0
AGSouth		AGS E-587	.	19	39.7	10/04	28	1.3	15.1	1.3
Terral		TVX58R1V2	.	20	39.7	10/01	34	1.3	14.9	1.0
DPL		DP 5644 RR	.	22	38.9	09/30	28	1.0	13.5	1.0

AGSouth		AGS E-574	.	23	38.5	09/30	29	1.3	12.6	1.0
Terral		TVX47R1K2	.	24	38.2	09/24	29	1.0	16.2	1.3
DPL		DP5414RR	.	26	35.9	09/28	29	1.0	14.6	1.3
Public Variety		R98-1817	.	28	29.8	09/25	20	1.0	11.1	1.3
Terral		TVX49R1L2	.	30	21.6	09/23	29	1.0	15.9	1.3

Average			47.0		40.8 ⁴	10/01	27	1.1	14.1	1.1
LSD at 10% Level			6.5		6.7	02	3	N.S.⁵	-	N.S.
Std. Err. of Entry Mean			4.4		2.8	01	1	0.2	-	0.1

Maturity Group VI

SS		RT6202N	53.0	4	44.3	10/08	27	1.3	14.2	1.2
Vigoro		V622NRR	51.2	7	43.0	10/08	30	1.3	14.4	1.5
USG		620NRR	50.8	8	42.2	10/08	30	1.3	14.3	1.2
USG		7662NRR	50.4	5	44.2	10/13	31	1.0	13.4	1.0
Asgrow		AG6202	48.8	3	45.0	10/07	31	1.3	14.0	1.0

Public Variety		Santee	48.4	9	41.5	10/14	29	1.0	12.8	1.2
Garst		6112RR/N	47.1	1	46.5	10/10	33	1.3	14.2	1.2
Garst		6612RR/N	46.5	14	37.8	10/15	31	1.0	14.2	1.0
Public Variety		Musen	46.0	19	36.1	10/12	34	1.0	10.8	1.0
Public Variety		NC Roy	45.7	16	37.3	10/10	31	1.3	11.9	1.0

Vigoro		V67N3RR	45.7	20	32.9	10/16	30	1.0	13.7	1.2
Public Variety		SC00-892	45.1	12	39.1	10/12	33	1.0	14.2	1.0
Pioneer		96B21	45.0	17	37.3	10/09	29	1.0	14.9	1.0
SS		RT6999N	44.8	13	38.8	10/16	33	1.0	11.7	1.0
Public Variety		Desha	42.7	11	39.4	10/09	29	1.0	13.6	1.5

DynaGro		3614RR	42.5	18	37.2	10/08	29	1.0	12.2	1.0
DPL		DP6299RR	41.3	15	37.4	10/08	28	1.3	14.2	1.3
DPL		DP6880RR	40.9	21	31.6	10/13	31	1.7	12.4	1.0
Public Variety		Hutcheson	37.5	22	26.5	10/01	19	1.0	15.0	1.5
Public Variety		R98-209	.	2	45.1	10/09	31	1.0	13.4	1.2

AgraTech		600RR	.	6	43.9	10/06	30	1.0	14.1	1.3
SS		RT6630N	.	10	40.8	10/12	28	1.0	13.3	1.3

Average			46.0		39.5 ⁶	10/10	30	1.1	13.5	1.2
LSD at 10% Level			N.S.		7.0	N.S.	3	N.S.	-	N.S.
Std. Err. of Entry Mean			2.2		2.9	01	1	0.3	-	0.1

1. Yields calculated at 13% moisture.
2. Lodging rating: Rated 1 (all plants erect) to 5 (over 80% of plants down).
3. Seed quality rating: Rated 1 (very good) to 5 (very poor).
4. CV = 12.0% and df for EMS = 58.
5. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore, a LSD value was not calculated.
6. CV = 12.9% and df for EMS = 42.
Bolding within each test denotes entries with yields equal to the highest yielding entry based on Fisher's protected LSD (P = 0.10).
Planted:	May 27, 2003.
Harvested:	Maturity Group V - October 17, 2003. Maturity Group VI - October 22, 2003.
Seeding Rate:	Ten seeds per foot in 30" rows.
Soil Type:	Maturity Group V - Pacolet coarse sandy loam. Maturity Group VI - Cecil sandy clay loam.
Soil Test:	Maturity Group V: P = Medium, K = High, and pH = 6.4. Maturity Group VI: P = Medium, K = High, and pH = 6.4.
Fertilization:	28 lb N, 56 lb P₂O₅, and 84 lb K₂O/acre.
Previous Crop:	Sorghum.
Management:	Chisel plowed, disked, and rototilled; Lasso, Canopy XL, Cobra, Classic, and one cultivation used for weed control; irrigated 0.5 inch.

Test conducted by P. A. Rose.