The Georgia Agricultural Experiment Stations College of Agricultural and Environmental Sciences The University of Georgia

Research Report Number 670 January, 2001

Griffin, Georgia: Three-Year Summary of Early-Planted Soybean Performance, 1998-2000, Nonirrigated
		Yield1
Company or Brand Name	Variety	3-Year Average	2000	1999	1998	Maturity	Plant Ht.	Lodg.2	Weight of 100 Seed	Seed Quality3
		------------- bu/acre -------------				mo/day	in	rating	gm	rating
Maturity Group V
Public Variety	Caviness	32.9	18.5	38.9	41.3	09/23	27	1.2	16.2	2.3
AgriPro	HY 574	27.9	23.9	31.1	28.6	09/27	32	1.1	15.0	1.8
Public Variety	Clifford	17.4	9.5	28.0	14.7	09/21	25	1.1	15.5	2.8
Average		26.14	17.3	32.7	28.2	09/23	28	1.1	15.6	2.3
LSD at 10% Level		10.1	5.5	4.6	7.0	4	3	N.S.5	-	N.S.
Std. Err. of Entry Mean		1.1	2.2	1.9	2.9	2	1	0.1	-	0.1
Maturity Group VI
SGA Boggs		41.6	36.7	40.2	48.1	10/14	32	1.9	14.7	1.4
Public Variety Dillon		40.4	38.6	28.9	53.9	10/07	35	1.2	16.4	1.8
Public Variety Musen		39.7	35.9	27.2	56.1	10/17	35	1.4	13.1	1.4
Public Variety TN 6-90		38.1	24.8	28.7	60.8	10/09	34	1.2	13.8	1.7
Average		40.06	34.0	31.2	54.7	10/11	34	1.5	14.5	1.6
LSD at 10% Level		N.S.	5.5	4.2	5.5	N.S.	N.S.	N.S.	-	N.S.
Std. Err. of Entry Mean		0.8	2.3	1.7	2.3	1	1	0.2	-	0.1
Maturity Groups VII and VIII
Public Variety	Maxcy	44.5	52.1	37.2	44.1	10/23	39	1.3	15.1	1.7
Univ of Ga	G90-R1551E	42.6	52.0	31.7	44.0	10/24	37	1.3	14.5	1.3
Univ of Ga	G92-2167	41.1	48.1	37.1	38.0	10/22	38	1.1	13.0	1.4
SGA	Prichard	40.7	45.4	36.2	40.4	10/29	39	1.3	14.9	1.4
Public Variety	Motte	40.6	48.7	38.1	34.9	10/28	40	1.7	15.3	1.7
SGA	Benning	39.5	50.2	32.5	35.9	10/19	37	1.5	16.1	1.9
Univ of Ga	G91-151	38.8	42.3	33.4	40.6	10/19	34	1.1	14.4	1.6
Public Variety	Hagood	37.6	45.3	32.0	35.4	10/27	43	1.9	16.4	1.4
Public Variety	Carver	36.4	44.6	32.7	31.7	10/11	34	1.1	14.2	1.3
SGA	Haskell	36.0	47.0	35.7	25.4	10/19	37	1.7	15.5	1.8
Average		39.87	47.6	34.7	37.0	10/22	38	1.4	14.9	1.6
LSD at 10% Level		N.S.	4.9	N.S.	6.1	4	2	N.S.	-	N.S.
Std. Err. of Entry Mean		1.4	2.1	2.9	2.6	1	1	0.1	-	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 = 13.4% and df for EMS = 12.
5. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore a LSD value was not calculated.
6. CV = 5.8% and df for EMS = 18.
7. CV = 10.5% and df for EMS = 54.
Bolding within each test denotes entries with yields equal to the highest yielding entry based on Fisher's protected LSD (P = 0.10).
Planting dates: 5/15/98, 5/12/99, and 5/11/2000.
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