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

Athens, 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

DPL		DP5915RR	49.8	7	56.7	10/08	31	2.0	15.3	1.3
SS		RT5999N	46.8	11	54.2	10/03	35	1.7	15.4	1.3
Public Variety		Caviness	46.6	8	56.6	09/25	26	1.3	15.0	1.2
Public Variety		UARK5896	45.9	9	55.0	09/30	28	1.0	15.0	1.3
Asgrow		AG5903	44.5	4	58.8	10/04	32	2.0	12.6	1.3

DynaGro		3562NRR	44.2	5	58.5	10/06	29	1.7	14.7	1.8
Public Variety		Lonoke	44.2	6	57.0	10/05	32	2.0	12.6	1.2
DPL		DP5806RR	43.4	19	50.8	10/06	35	2.0	12.8	1.2
SS		RT587N	43.2	13	53.9	10/08	32	1.3	14.9	1.3
SS		RT557N	41.1	24	49.7	09/25	31	1.3	13.7	1.0

Public Variety		Hutcheson	38.4	21	50.4	09/24	26	1.0	14.5	1.0
SS		RT5930N	.	1	62.6	10/05	29	1.0	14.9	1.2
NK		S57-P1	.	2	60.4	10/01	31	1.3	13.9	1.2
Terral		TVX56R1B2	.	3	59.7	09/30	35	2.0	12.1	1.0
SS		RT5602N	.	10	54.4	09/24	26	1.0	13.6	1.2

Public Variety		R97-1634	.	12	54.2	10/04	29	1.3	15.6	1.3
AGSouth		AGS E-572	.	14	53.6	09/26	30	1.0	12.6	1.0
AGSouth		AGS E-587	.	15	52.7	10/04	36	2.0	15.5	1.2
Public Variety		CavinessRR	.	16	52.6	09/29	26	1.0	14.7	1.3
AGSouth		AGS E-574	.	17	52.2	09/29	33	2.3	12.5	1.3

Pioneer		95B96	.	18	51.4	10/04	31	1.3	13.8	1.2
DPL		DP5414RR	.	20	50.8	09/24	31	1.7	14.1	1.0
Terral		TVX58R1V2	.	22	50.1	10/05	34	1.3	13.9	1.2
DPL		DP 5644 RR	.	23	49.9	09/29	28	2.0	14.0	1.0
AGSouth		AGS E-531	.	25	47.8	09/29	34	2.0	13.3	1.0

Public Variety		R98-1817	.	26	47.6	09/23	22	1.0	11.6	1.2
Public Variety		Ozarks	.	27	47.5	09/23	23	1.0	14.4	1.2
Terral		TVX47R1K2	.	28	47.4	09/23	31	1.7	14.9	1.3
DPL		DP5634RR	.	29	46.6	09/29	26	1.0	14.5	1.0
Terral		TVX49R1L2	.	30	44.8	09/23	40	1.7	16.4	1.8

Average			44.4		52.9 ⁴	09/30	30	1.5	14.1	1.2
LSD at 10% Level			N.S.⁵		4.9	03	3	0.5	0.7	0.4
Std. Err. of Entry Mean			1.7		2.1	01	1	0.2	0.3	0.2

Maturity Group VI

Vigoro		V622NRR	43.9	2	63.0	10/11	37	2.7	14.1	2.0
SS		RT6202N	43.4	3	59.9	10/09	39	2.0	14.5	2.0
Public Variety		Santee	42.3	16	54.6	10/13	39	2.0	14.5	1.8
DynaGro		3614RR	42.0	6	58.8	10/11	39	1.7	13.5	2.0
USG		620NRR	42.0	7	58.3	10/10	38	2.0	15.0	2.0

Asgrow		AG6202	41.7	1	63.5	10/10	39	2.7	14.8	1.5
Public Variety		Musen	41.7	14	55.4	10/14	38	2.7	13.4	2.0
Garst		6112RR/N	40.8	8	58.3	10/08	36	2.0	14.8	1.7
Garst		6612RR/N	40.5	11	56.3	10/15	38	2.0	14.2	1.8
USG		7662NRR	39.9	4	59.8	10/15	37	1.7	14.0	1.5

Vigoro		V67N3RR	39.6	10	56.6	10/13	37	1.7	13.7	1.8
DPL		DP6299RR	38.1	15	55.4	10/11	36	3.0	15.1	1.5
Pioneer		96B21	37.5	17	54.5	10/07	37	2.0	16.0	2.0
Public Variety		SC00-892	37.4	18	54.4	10/12	37	1.7	16.0	1.8
Public Variety		Desha	36.7	20	50.9	10/12	41	2.0	14.2	1.5

DPL		DP6880RR	36.5	19	52.7	10/12	40	2.0	13.3	1.5
Public Variety		NC Roy	36.4	21	49.7	10/12	36	2.7	12.8	1.5
SS		RT6999N	32.8	22	46.2	10/16	42	2.0	12.8	1.5
Public Variety		R98-209	.	5	59.6	10/11	34	2.0	14.4	2.0
Public Variety		Hutcheson	38.8	9	57.1	09/27	31	1.0	15.3	1.8

AgraTech		600RR	.	12	56.2	10/06	38	1.7	13.8	1.8
SS		RT6630N	.	13	56.1	10/12	37	2.0	15.2	1.8

Average			39.6		56.2 ⁶	10/11	38	2.0	14.3	1.8
LSD at 10% Level			N.S.		5.1	02	4	0.5	1.2	0.2
Std. Err. of Entry Mean			1.5		2.2	01	2	0.2	0.5	0.1

Maturity Groups VII and VIII

UGA		G98-1420	42.2	4	55.3	10/16	36	1.7	13.8	1.5
NK		S73-Z5	41.8	5	54.1	10/16	38	2.0	14.0	1.7
AGSouth		Prichard	41.7	18	51.5	10/22	39	2.3	14.0	1.5
DPL		DP7220RR	41.0	20	50.8	10/17	38	1.7	13.2	1.5
AGSouth		Benning	41.0	29	48.0	10/15	38	2.7	15.3	1.7

NK		S76-L9	39.7	30	47.6	10/18	36	3.0	14.8	1.5
Public Variety		Musen	39.2	23	49.3	10/15	38	3.0	12.6	1.5
Public Variety		Motte	38.6	22	49.5	10/22	43	2.3	14.3	1.5
Pioneer		97B52	38.2	35	46.0	10/13	32	3.7	14.3	1.5
AGSouth		AGS 825RR	38.1	34	46.5	10/22	40	2.3	15.1	1.7

Public Variety		Kuell	38.0	19	51.2	10/23	37	2.7	13.3	1.5
Public Variety		Stonewall	37.5	14	52.2	10/18	37	2.0	18.2	1.5
UGA		G01-FAP8	37.1	37	45.7	10/18	33	2.0	14.6	1.5
Public Variety		Cook	37.1	41	44.2	10/16	39	2.3	14.9	1.5
AGSouth		Prichard RR	36.8	36	45.8	10/23	44	3.0	13.2	1.5

Public Variety		NC Raleigh	36.0	25	49.2	10/20	36	2.3	13.7	1.5
AGSouth		Haskell	35.0	39	44.6	10/16	38	2.7	15.8	1.5
USG		7732nRR	33.4	28	48.6	10/17	39	2.3	15.3	1.5
UGA		G01-FAP13	33.1	42	42.0	10/15	38	2.0	13.7	1.5
Public Variety		N7001	32.5	38	45.0	10/16	28	1.3	13.9	1.5

SS		RT7499N	32.4	10	44.4	10/19	41	1.7	13.1	1.5
UGA		G99-2678	.	1	56.4	10/17	43	3.0	14.9	1.7
USG		7713nRR	.	2	55.8	10/16	31	2.3	12.3	1.5
USG		7743nRR	.	3	55.4	10/15	45	2.7	14.1	1.7
UGA		G99-2172	.	6	54.1	10/22	41	2.0	13.3	1.5

UGA		G99-3211	.	7	53.8	10/22	40	2.0	14.3	1.5
DynaGro		33Z74	.	8	53.1	10/15	47	3.0	13.8	1.8
DPL		DPX7870RR	.	9	53.1	10/16	43	2.7	14.1	1.5
Vigoro		V74N4RR	.	10	53.0	10/16	48	3.0	14.1	1.5
UGA		G99-2604	.	11	53.0	10/18	38	1.7	14.8	1.5

Vigoro		V71N4RR	.	12	52.5	10/16	32	2.3	12.2	1.7
UGA		G99-2982	.	13	52.4	10/17	38	2.0	14.4	1.5
UGA		G99-1308	.	15	52.0	10/18	38	2.0	13.4	1.5
UGA		G02-G42164	.	16	51.7	10/19	39	2.3	11.9	1.5
AGSouth		AgSouth 751	.	17	51.6	10/16	38	2.7	14.8	1.5

DynaGro		SX03176	.	21	50.0	10/16	42	3.0	14.2	1.5
UGA		G99-2721	.	24	49.3	10/17	41	2.3	13.9	1.7
UGA		G02-G176376	.	26	49.1	10/15	37	1.7	13.5	1.5
DynaGro		34J71	.	27	48.7	10/16	37	2.3	12.7	1.7
UGA		G01-5572	.	31	47.4	10/16	39	2.0	14.8	1.5

UGA		G99-1166	.	32	47.1	10/22	41	2.0	15.1	1.5
Asgrow		AG7601	.	33	46.9	10/21	42	2.3	13.8	1.5
UGA		G01-5528	.	43	40.4	10/15	37	2.3	13.5	1.5
UGA		G01-5533	.	44	38.5	10/16	35	2.0	14.5	1.5

Average			37.6		49.5 ⁷	10/17	39	2.3	14.1	1.5
LSD at 10% Level			N.S.		5.0	01	3	0.7	0.7	N.S.
Std. Err. of Entry Mean			1.5		2.1	01	1	0.3	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 = 6.8% 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 = 6.6% and df for EMS = 42.
7. CV = 7.5% and df for EMS = 86.
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 30, 2003.
Harvested:	Maturity Group V - October 13, 2003. Maturity Group VI - October 20, 2003. Maturity Groups VII and VIII - November 3, 2003.
Seeding Rate:	Eight seeds per foot in 30" rows.
Soil Type:	Cecil coarse sandy loam.
Soil Test:	Maturity Groups V and VI: P = Medium, K = Medium, and pH = 6.3. Maturity Groups VII and VIII: P = High, K = Medium, and pH = 6.3.
Fertilization:	0 lb N, 52 lb P₂O₅, and 105 lb K₂O/acre.
Previous Crop:	Grain sorghum.
Management:	Chisled plowed and disked; FirstRate, Dual Magnum, Classic, and one cultiviation used for weed control; subsoiled between rows after cultivation; Telone II used for nematode control; irrigated 4.0 inches.

Test conducted by E. D. Wood, G. B. Rowan, J. L. Head Jr., S. L. Finnerty, W. E. Baxter, H. B. Chambers, R. M. Smith, and R. A. Black.