|St Martin, S|
Submitted to: Crop Science
Publication Type: Germplasm Release
Publication Acceptance Date: 11/21/2000
Publication Date: N/A
Citation: N/A Interpretive Summary: This is a germplasm release. No Interpretive Summary required.
Technical Abstract: Troll is a maturity group IV determinate semidwarf variety released in 1998. It is a F4-derived line, originally designated as HC90-196, from the cross Sprite 87 x HC80-1756. HC80-1756 is a determinate semidwarf line from the cross, L73U-623 x Elf. L73U-623 is a determinate semidwarf line from the cross, Miller 67 x Williams. Miller 67 is a determinate, maturity group III variety introduced from Korea in 1967 by a farmer, Richard Miller, from Arcanum, OH. Troll has averaged 10% to 15% higher yield than the maturity group IV determinate variety, Ripley, currently being grown. Like all semidwarf varieties, Troll 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 seed/ha).