A New Black Soybean Cultivar, “Cheongja 3” with Green Cotyledon,Medium-late Maturity and High Anthocyanin

Abstract

A new black seed coated soybean cultivar with green cotyledon, Cheongja 3 was developed at the National Institute ofCrop Science (NICS), and Yeongnam Agricultural Research Institute (YARI) in 2004. Cheongja 3 was selected from a cross)were carried out from 2000 to 2004. It has a determinate growth habit, purple flower, tawny pubescence, dark brown pod color,black seed coat, green cotyledon, ellipse seed shape, oval leaflet shape and large seed size (32.1 grams per 100 seeds), and it was7 days later in maturity than the check variety Cheongja. In seed quality such a sucrose, and a total sugar contents, isoflavone, andbeen identified to have resistance to necrotic symptom (SMV-N) of soybean mosaic virus which is the troublesome soybean dis-ease. The average yield of Cheongja 3 was 2.40 ton per hectare in the regional yield trials (RYT) carried out for three years from2002 to 2004 which was 12 percent higher than the check variety Cheongja.