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Difference of Hypocotyl and Growth Characters of Soybean-sprouts by Sowing Date in Sprout-soybean Cultivar  

Kim, Hag-Sin (Mokpo Experiment Station, NICS, RDA)
Kim, Kyong-Ho (Rural Development Administration)
Kim, Hong-Sig (Chung-buk National University)
Lee, Yeong-Ho (National Institute of Crop Science, RDA)
Jong, Seung-Keun (Chung-buk National University)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.51, no.7, 2006 , pp. 608-617 More about this Journal
Abstract
This study was conducted to investigate the effects of sowing date on soybean-sprout growth characters and for improving cultural techniques to produce high quality soybean-sprout. Six sprout-soybean cultivars were planted on three sowing dates in 2000 and 2001. The growth of hypocotyl in soybean sprouts was accelerated at higher temperature and the differences among cultivars became greater at later culture days. The longest of hypocotyl and root lengths of soybean sprouts was obtained from July 5 sowing, followed by May 25 and June 15 sowing. Doremikong and Hannamkong had the thickest and the thinness hypocotyls, respectively. Total length of soybean-sprouts was longer in seeds harvested from later sowing, respectively. Eunhakong produced the longest soybean-sprouts, while Tawonkong produced the shortest. Percentage of rotten seed and imperfectly germinated seed harvested at later sowing was lower. Somyeongkong and Tawonkong showed the highest and the lowest percentages of rotten seeds, respectively, while Pungsannamulkong and Hannamkong showed the lowest and the highest percentages of imperfectly germinated seeds. The soybean-sprouts yields were higher in seeds harvested in 2001 and later sowing. Although Eunhakong and Doremikong showed higher soybean-sprout yield, Pungsannamulkong and Somyeongkong showed stable soybean-sprout yield regardless of the sowing dates.
Keywords
soybean; sprouts; hypocotyl; sowing date;
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