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

Tifton, 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	57.4	5	57.4	09/27	37	1.3	15.6	3.0
DPL		DP5915RR	56.5	6	57.2	09/30	33	1.3	16.9	3.0
Public Variety		Hutcheson	55.9	2	59.9	09/25	29	1.0	18.2	2.7
DPL		DP5806RR	55.3	13	54.6	09/27	32	1.3	15.3	2.3
Public Variety		UARK5896	54.3	15	52.9	09/23	35	1.3	16.6	3.3

Public Variety		Caviness	52.8	14	53.9	09/25	31	1.0	16.9	3.7
SS		RT5999N	52.7	17	51.6	09/24	38	1.0	17.7	2.7
SS		RT557N	51.6	8	55.4	09/21	35	1.7	15.9	3.3
DynaGro		3562NRR	50.9	22	48.9	09/26	33	1.0	17.1	3.3
Public Variety		Lonoke	48.8	24	46.5	09/27	36	1.7	13.8	3.7

SS		RT587N	48.1	21	49.4	09/26	37	1.0	16.7	2.7
DPL		DP5634RR	.	1	61.5	09/23	37	1.7	17.5	2.3
Public Variety		Ozarks	.	3	59.3	09/22	31	1.0	18.4	2.3
Public Variety		R98-1817	.	4	57.8	09/17	24	1.0	14.8	2.3
SS		RT5930N	.	7	55.7	09/28	34	1.0	17.3	3.3

DPL		DP5414RR	.	9	55.3	09/21	36	1.7	17.4	2.3
SS		RT5602N	.	10	55.1	09/24	29	1.0	16.4	3.7
AGSouth		AGS E-574	.	11	55.1	09/22	36	2.0	14.8	2.0
NK		S57-P1	.	12	54.8	09/28	35	1.0	15.5	3.7
AGSouth		AGS E-587	.	16	51.6	09/25	41	2.7	18.7	2.0

DPL		DP 5644 RR	.	18	51.2	09/27	32	2.0	18.0	3.0
Terral		TVX56R1B2	.	19	50.1	09/22	37	1.7	14.5	2.3
Terral		TVX47R1K2	.	20	49.6	09/19	35	1.3	15.0	3.7
AGSouth		AGS E-531	.	23	46.8	09/22	37	1.3	17.0	2.0
Public Variety		R97-1634	.	25	45.7	09/29	34	1.0	18.7	2.7

Terral		TVX58R1V2	.	26	45.5	09/27	39	1.0	16.8	3.7
Pioneer		95B96	.	27	44.8	09/25	31	1.0	15.4	3.3
AGSouth		AGS E-572	.	28	44.3	09/21	34	1.0	16.7	3.7
Terral		TVX49R1L2	.	29	35.9	09/24	41	1.0	17.4	4.3
Public Variety		CavinessRR	.	30	33.3	09/25	32	1.0	15.8	4.0

Average			53.1		51.4 ⁴	09/24	34	1.3	16.5	3.0
LSD at 10% Level			N.S.⁵		7.2	04	3	0.5	1.6	0.7
Std. Err. of Entry Mean			1.9		3.1	01	1	0.2	0.6	0.3

Maturity Group VI

Public Variety		Santee	56.9	2	55.3	10/08	38	1.0	18.8	2.0
Public Variety		NC Roy	55.9	1	61.2	10/06	33	1.0	16.6	1.3
DPL		DP6880RR	51.1	5	53.5	10/04	35	1.7	16.9	2.2
Vigoro		V67N3RR	50.4	15	45.2	10/03	36	1.0	15.7	2.7
Vigoro		V622NRR	49.9	12	46.7	09/30	31	1.3	17.5	2.8

Asgrow		AG6202	49.9	16	43.7	10/02	37	1.0	17.4	2.7
Public Variety		Musen	49.6	6	52.5	10/07	37	1.7	14.5	2.0
Public Variety		Hutcheson	49.6	8	49.9	09/26	30	1.0	17.8	3.0
USG		7662NRR	47.8	3	55.1	10/08	35	1.0	15.6	2.0
Public Variety		Desha	47.5	9	49.8	09/29	38	1.0	18.7	2.3

SS		RT6202N	46.5	18	43.4	09/29	36	1.0	16.2	3.0
USG		620NRR	44.6	11	47.6	09/29	31	1.0	17.1	2.7
Garst		6112RR/N	44.4	7	52.4	09/30	35	1.7	17.0	2.3
Public Variety		SC00-892	44.4	14	45.3	10/02	37	1.3	18.0	2.3
DynaGro		3614RR	44.2	13	45.6	09/30	33	1.0	15.0	3.0

DPL		DP6299RR	42.6	22	37.4	09/29	33	1.0	17.5	3.3
Pioneer		96B21	39.2	20	40.9	09/28	35	1.0	17.4	3.3
Garst		6612RR/N	38.7	17	43.6	10/07	35	1.0	14.5	2.0
SS		RT6999N	36.9	19	41.8	10/09	38	1.3	14.8	2.0
Public Variety		R98-209	.	4	54.5	10/03	37	1.0	16.0	3.0

AgraTech		600RR	.	10	49.6	10/01	39	1.0	16.7	2.3
SS		RT6630N	.	21	39.2	10/06	34	1.0	16.4	3.7

Average			46.8		47.9 ⁶	10/02	35	1.1	16.6	2.5
LSD at 10% Level			N.S.		8.4	03	4	0.5	2.2	0.8
Std. Err. of Entry Mean			2.8		3.5	01	1	0.2	0.5	0.3

Maturity Groups VII and VIII

AGSouth		Benning	54.1	6	60.1	10/11	38	1.0	18.2	3.0
Public Variety		NC Raleigh	52.1	8	58.7	10/16	36	2.0	16.5	2.0
Public Variety		Musen	49.7	23	52.1	10/07	39	1.0	15.8	3.3
Public Variety		Cook	49.6	10	57.2	10/17	34	1.7	20.8	3.0
Public Variety		N7001	49.5	7	59.4	10/16	32	1.0	18.0	2.7

AGSouth		Prichard	49.1	25	51.4	10/19	37	1.3	16.1	2.0
Pioneer		97B52	49.1	35	46.6	10/03	38	1.0	16.2	2.7
USG		7732nRR	48.1	17	54.8	10/08	35	1.7	18.1	2.7
AGSouth		AGS 825RR	47.6	24	52.0	10/16	37	1.7	15.6	2.0
NK		S73-Z5	47.1	31	48.3	10/05	39	1.0	16.1	3.0

Public Variety		Motte	47.0	34	47.3	10/12	40	2.3	15.3	2.0
UGA		G01-FAP8	46.7	37	46.4	10/24	29	1.0	19.7	2.7
Public Variety		Stonewall	45.5	29	49.7	10/11	34	1.0	22.2	2.7
UGA		G98-1420	44.8	38	46.4	10/06	36	2.0	16.2	3.3
Public Variety		Kuell	44.7	27	50.4	10/18	36	1.7	17.8	2.7

AGSouth		Prichard RR	44.6	41	44.3	10/14	37	2.3	13.2	2.0
NK		S76-L9	44.4	39	46.3	10/14	37	1.3	17.6	3.0
UGA		G01-FAP13	43.3	40	45.6	10/23	33	1.0	17.9	3.3
AGSouth		Haskell	42.6	14	55.5	10/13	35	1.0	20.1	2.7
DPL		DP7220RR	42.2	44	36.4	10/07	36	1.3	13.2	3.7

SS		RT7499N	35.8	43	38.5	10/08	36	1.0	14.8	2.0
DynaGro		34J71	.	1	64.2	10/08	35	1.0	16.1	3.3
UGA		G99-1308	.	2	64.1	10/15	39	2.0	16.1	2.3
UGA		G99-3211	.	3	63.5	10/19	40	1.3	17.9	2.7
Vigoro		V71N4RR	.	4	61.9	10/11	34	1.0	15.7	2.7

UGA		G99-2678	.	5	61.0	10/13	39	1.7	17.9	3.3
DPL		DPX7870RR	.	9	57.8	10/08	39	1.7	17.1	2.7
DynaGro		SX03176	.	11	56.6	10/11	33	1.7	18.9	2.0
DynaGro		33Z74	.	12	56.5	10/11	41	2.3	17.1	3.7
UGA		G99-2982	.	13	56.2	10/12	34	1.0	16.0	3.0

USG		7713nRR	.	15	55.1	10/07	35	1.0	16.6	2.7
AGSouth		AgSouth 751	.	16	55.0	10/13	39	2.7	19.0	3.0
UGA		G99-2604	.	18	54.5	10/10	38	1.0	17.2	3.0
Vigoro		V74N4RR	.	19	54.1	10/12	39	2.0	17.3	3.3
UGA		G01-5528	.	20	53.9	10/11	35	1.3	17.9	2.7

UGA		G02-G176376	.	21	53.2	10/06	39	1.0	15.9	2.7
USG		7743nRR	.	22	52.7	10/10	41	1.3	17.4	2.7
Asgrow		AG7601	.	26	50.9	09/22	37	2.3	16.9	2.3
UGA		G02-G42164	.	28	50.2	10/11	37	2.0	13.3	3.3
UGA		G99-1166	.	30	49.6	10/18	41	1.0	18.9	3.0

UGA		G99-2721	.	32	47.8	10/12	37	1.0	15.2	2.0
UGA		G01-5572	.	33	47.6	10/11	37	1.3	17.6	3.0
UGA		G99-2172	.	36	46.5	10/15	39	2.3	14.5	3.0
UGA		G01-5533	.	42	42.7	10/09	36	1.0	16.0	2.3

Average			46.6		52.3 ⁷	10/11	37	1.5	16.9	2.8
LSD at 10% Level			N.S.		6.3	09	4	0.6	1.5	0.8
Std. Err. of Entry Mean			1.6		2.7	04	2	0.3	0.6	0.3

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 = 10.3% 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 = 12.7% and df for EMS = 42.
7. CV = 8.9% 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:	Maturty Group V - May 13, 2003. Maturity Group VI - May 14, 2003. Maturity Groups VII & VIII - May 13, 2003.
Harvested:	Maturity Group V and VI - October 21, 2003. Maturity Groups VII & VIII - November 3, 2003.
Seeding Rate:	Ten seeds per foot in 30" rows.
Soil Type:	Tifton loamy sand.
Soil Test:	P = High, K = Medium, and pH =6.2 .
Fertilization:	14 lb N, 40 lb P₂O₅, and 81 lb K₂O/acre.
Previous Crop:	Corn.
Management:	Paraplowed, subsoiled and bedded, rototilled; Treflan and Basagran used for weed control; Telone II used for nematode control; irrigated 3 inches.

Test conducted by A. E. Coy, M. D. Pippin, R. Burton, R. Brooke, and T. Harsey.