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United States Department of Agriculture

Agricultural Research Service


item Cooper, Richard
item Mendiola, Timothy
item St Martin, S - OARDC/OSU
item Fioritto, R - OARDC/OSU
item Schmitthenner, A - OARDC/OSU
item Dorrance, A - OARDC/OSU

Submitted to: Crop Science
Publication Type: Germplasm Release
Publication Acceptance Date: November 21, 2000
Publication Date: N/A

Interpretive Summary: This is a germplasm release. No Interpretive Summary required.

Technical Abstract: Stout is a maturity group III determinate semidwarf soybean variety released in 1999. It is a F4-derived line, originally designated as HC94-421, from the cross, Sprite 87 x HC85-6557. HC85-6577 is a determinate semidwarf line from the cross, HC78-350 x HC78-676. HC78-350 is a semidwarf line from the cross, L72U-2567 x Essex. L72U-2567 is an F2-derived line from the cross, Williams x Ransom. HC78-676 is a semidwarf line from the cross, L70T-543G x L74D-619. L70T-543G is an indeterminate line from the cross, L15 x Amsoy 71. L15 is a BC5-derived near isogenic line of Wayne containing the Rps1-a allele from Clark 63. L74D-619 is a semidwarf line from the cross, Williams x Ransom. In high yield environments, Stout has averaged 8% higher yields than the maturity group III semidwarf variety, Charleston, currently being grown. Like all semidwarf varieties, Stout is recommended only on soils with a history of high yields (>3300 kg/ha) and it should be solid-seeded in 17- to 20cm row spacing at a seeding rate of 750,000 seeds/ha of 90+% germination (675,000 viable seeds/a).

Last Modified: 11/29/2015
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