Abstract
Soybean [Glycine max (L.) Merr.] is an important source for protein, oil, carbohydrates, isoflavones, and many other nutrients to humans and animals. Lipoxygenase protein is the main antinutritional factor in mature soybean seed. Soybean cultivar, Choseon with yellow medium seed size and free of lipoxygenase 2,3 protein was developed. Choseon was selected from the population derived from the cross between cultivar, Jinpum 2 and germplasm, PI408155. Choseon has purple flowers, tawny pubescence, a determinate growth habit, and light yellow pods at maturity. The seed of Choseon has yellow hilum and yellow seed coat color. Seed protein and oil content on a dry weight basis were 34.2 and 16.9%, respectively. Choseon has shown a resistant reaction to soybean necrosis, soybean mosaic virus, Cercospora leaf spot and blight, black root rot, pod and stem blight, and bacterial pustule. Choseon matured in 5 October with plant height of 51 cm and a 100-seed weight of 15.1 g. Average yield of Choseon was 2.66 (Ton/ha) on the regional yield trials of 2013 at 4 locations. Choseon has been registered as a soybean cultivar (registration number: 5985, registration date: April 11, 2016) by Korea Seed & Variety Service, Republic of Korea.
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