A New Tofu and Soy-paste Soybean Cultivar, “Seonyu” with Large Seed and Early Maturity

Abstract

A new tofu and soy-paste soybean cultivar, Seonyu, was developed at the Yeongnam Agricultural Research Institute(YARI) in 2004. Seonyu was selected from a cross Suwon 162/YS 548. The preliminary, advanced, and regional yield trials forflower, gray pubescence, gray pod color, yellow seed coat, yellow cotyledon, globular seed shape, oval leaflet shape and large seedsize (29.6 grams per 100 seeds), and it was 8 days earlier in maturity than the check variety Taekwang. In the seed quality such anoil and isoflavone contents, Seonyu was better than those of check variety, and it has good adaptability for tofu and soy-paste. Itsoybean disease. The average yield of Seonyu was 2.44 ton per hectare in the regional yield trials (RYT) carried out for three yearsfrom 2002 to 2004 which was 1 percent lower than one of the check variety Taekwang.