|ST MARTIN, S|
Submitted to: Crop Science
Publication Type: Germplasm Release
Publication Acceptance Date: 8/15/1996
Publication Date: N/A
Interpretive Summary: This is a Germplasm Release, no Interpretive Summary Required.
Technical Abstract: 'Ohio FG1' soybean (Glycine max (L.)Merr.) (Reg. no. CV-34,PI584469) was developed by the Ohio Agricultural Research and Development Center of The Ohio State University (OARDC-OSU). It was released 1 Aug 1994 as a specialty cultivar for production of tofu and other soy foods. Ohio FG1 is an F4-derived line, originally designated HS90-3508, from the cross 'LS301' x HS84-6247(2). The cross was made in the summer 1987 at Columbus, OH. The parent line HS84-6247 derives from 'Zane'(3) x HW79149(5,6). Ohio FG1 was developed by early-generation testing. The F1-derived line HS88- 8318 was tested in Ohio from 1988 to 1990. Ohio FG1 which derived from an F4 plant of HS88-8318, was tested in multiple Ohio locations from 1991 to 1994(4). Ohio FG1 has purple flowers, grey pubescence, brown pods, and dull yellow seedcoats with yellow hila. It is a Maturity Group III (relative maturity 3.2) indeterminate cultivar and is generally adapted as a full-season cultivar from 41 deg to 43 deg N lat. In Ohio tests (1991- 1994), seed yield of Ohio FG1 was 15% greater than 'Vinton 81'(1), a widely grown food-grade cultivar. Ohio FG1 yielded 9% less than the grain- type cultivar Resnik (3). Compared with Vinton 81, Ohio FG1 had 9 mg/seed greater seed weight, but 10 g/kg lower seed protein content. Lodging resistance of Ohio FG1 was similar to that of Vinton 81. Seed of Ohio FG1 produced soymilk with solids similar to that of Vinton 81. Ohio FG1 has a gene, derived from PI 82263-2, for race-specific resistance to phytophthora rot (caused by Phytophthora sojae M.J. Kaufmann & J.W. Gerdemann). An allelism test revealed that this gene which confers resistance to races 1, 3, 4, and 25 but not Race 7, is at the Rps3 locus.