A New Soybean Cultivar, “Jangki” for Sprout with Lodging Resistance and Adaptability for Mechanized Harvest

A new sprout-soybean cultivar, “Jangki” was developed at the Honam Agricultural Research Institute (HARI) and National Institute of Crop Science (NICS) in 2005. Jangki was selected from a cross between Eunhakong and MS91088. The preliminary, advanced, and regional yield trials for evaluation and selection of this line (Iksan 47) were carried out from 2001 to 2005. This cultivar has a determinate growth habit, purple flower, grayish brown pubescence, grayish brow hilum, lanceolate leaflet shape and small seed size (11.9 grams per 100 seeds). The maturity date of “Jangki” is three days later than that of the check variety, “Pungsan”. It has a good seed quality for soybean-sprout. The soybean-sprouts grown from “Jangki” have high isoflavone (5,237 μg/g) and amino acid (238 mg/g) contents. This cultivar has resistance to soybean mosaic virus (SMV), necrotic symptom (SMV-N), other most troublesome soybean diseases. bacterial pustule and black root rot. Especially, “Jangki” has useful characteristics, such as lodging and shattering resistance and adaptability for mechanized harvesting. The average yield of “Jangki” was 2.83MT/ha, about 5% higher than “Pungsannamulkong” at the regional yield trials (RYT) for double cropping.