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A new sprout-soybean cultivar, "Sohwang" was developed at the National Institute of Crop Science (NICS) in 2008. "Sohwang" was selected from a cross between Pungsan and Pungsan/Nattosan. The preliminary, advanced, and regional yield trials to evaluate the performance of Iksan 58 were carried out from 2004 to 2008. This cultivar has a determinate growth habit with purple flower, grayish brown pubescence, yellow seed coat, Yellow hilum, lanceolate leaflet shape and small seed size (8.5 grams per 100 seeds). The maturity date of "Sohwang" is 10 days earlier than the check variety, "Pungsan". It has a good seed quality for soybean-sprout. The soybean-sprouts grown from "Sohwang" have high isoflavone (3,041 μg/g)contents. This cultivar has resistance to soybean mosaic virus (SMV) and necrotic symptom (SMV-N), and other most troublesome soybean diseases which are bacterial pustule and black root rot. Especially, "Sohwang" has useful characteristics, such as lodging and shattering resistance. The average yield of "Sohwang" was 2.69 ton per hectare in the carried out for three years from 2006 to 2008 regional yield trials(RYT) for double cropping [ABSTRACT FROM AUTHOR]

A new soybean cultivar for soybean sprout, 'Wonheug' was developed at the National Institute of Crop Science (NICS) in 2009. 'Wonheug (Iksan63)' was released from the cross between F1 of YS1286 (Tawonkong/Jinju#1) and Jinju#1. It has purple flower, oval shaped leaf, tawny pubescence and small black seed (8.8 g/100 seed). Maturing date of 'Wonheug' is ten days later than check cultivar, 'Tawonkong'. Even though mosaic symptom can be observed by artificial inoculation, 'Wonheug' is tolerant to virus and bacterial pustule at field. It has similar tolerance to a check cultivar for excess water and seed spot. 'Wonheug' produce more soy-sprout than a check cultivar because it shows high in germination ratio, low in rate of abnormal germination and hard seed. The average yield of 'Wonheug' was 2.34 ton per hectare in the regional yield trial (RYT) carried out for three years from 2007 to 2009, which was 12 percent higher than check cultivar, 'Tawonkong' [ABSTRACT FROM AUTHOR]

A new sesame variety 'Milsung' was developed from Yeongnam Agricultural Research Institute, National Institute of Crop Science, Rural Development Administration in 2007. Cross was made by 'Iri 4' and 'Suwon 131' with high quality and yields capacity and disease resistance. And 'Milsung' was followed by breeding methods of pedigree selection, yield performance trials and regional yield trials by the sesame breeding team at the National Institute of Crop Science. 'Milsung' has a few branch with tri-capsuled, bi-loculi and quadri-carpellates. And the color of flower is light pink. Flowering date of 'Milsung' was Jul 1st which was two days earlier than that of the check variety 'Yangback'. Maturing date of 'Milsung' was Aug 20th which was same to that of the check variety 'Yangback'. Plant height of 'Milsung' was 129 cm which was similar to that of the check. But 'Milsung' had 27 capsuled nodes which was more than those of the check. So 'Milsung' showed very dense capsuled shape. Disease and disaster resistance including phytophthora blight and lodging were similar to the check. The yield of 'Milsung' was 98 kg/10a which increased by 5% compared to that of the check. Oil content of 'Milsung' was lower than that of the check but higher in protein. Oleic acid composition of fatty acid was 45.8 percent. The contents of sesamin is 2.8 mg/g and those of sesamolin is 3.0 mg/g. [ABSTRACT FROM AUTHOR]

Riptortus clavatus, one of the many insects in major crops, damages pods and seeds, which reduces seed vigor and viability in soybeans. This study was conducted to examine the effect of diversely damaged seeds by R. clavatus on seed germination and seedling emergence and to determine the association of damaged seed with quality and yield of soybean sprouts. All seeds damaged by R. clavatus significantly (P<0.05) reduced seed vigor as measured by the rates of seed germination, germination speed, and seedling emergence. Mean seed germination rate of non-damaged seeds in sprout-soybean varieties was 97.8%, whereas the rates of seeds damaged at different levels, 31-50% and 51-80%, were 23.0 and 5.4%, respectively. The rates of seedling rot and abnormal, incomplete germination significantly (P<0.05) increased as the amount of seeds damaged by R. clavatus increased to 5, 10 and 15% against the total seeds for sprout production. Yield of soybean sprouts from seeds damaged at different levels decreased up to 13% as compared to that in normal seeds. In customer preferences on soybean sprout produce, 84% of customers participated in survey preferred to purchase sprouts from seeds with 5% of damaged seeds, but sprouts produced from seeds with 15% of damaged seeds were intended to purchase only by 22% of the customers. Areas of the seed damaged by R. clavatus were readily infected by pathogens as the seed germinated, resulted in deteriorated quality and reduced yield of sprout produce. [ABSTRACT FROM AUTHOR]