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KMID : 1098420050130010006
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Korean Journal of Medicinal Crop Science
2005 Volume.13 No. 1 p.6 ~ p.10
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Lateral Root Formation and Growth of Soybean Sporouts Treated with Various Solutions
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Kang Jin-Ho
Park Cheol-Jong
Yoon Soo-Young
Jeon Seung-Ho
Hong Dong-Oh
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Abstract
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Lateral roots of soybean sprouts should deeply affect their quality and marketability. The study was done to compare the effects of ocher, chitosan, corn kennel, tea (Thea sinensis L.) and hard rubber tree (Eucommia ulmoides Oliver) leaf extracts on lateral root formation, growth and morphological characters of the sprouts. Seeds of three cultivars, Pungsannamulkong, Sowonkong and Junjery, were imbibed for 5 hours into their 10% solutions and cultured for 6 days. The cultured sprouts were classified into 4 categories to calculate their composition rates on the base of hypocotyl lengths;>7 cm (A), 4 to 7 cm (B), < 4 cm (C) and not germinated (D), and their morphological characters, fresh and dry weights were measured. Composition rate of A was the lowest in Junjery of the three cultivars, while that of C showed reverse result compared to A. This results was the most distinct in hard rubber tree leaf extracts (HRTLE) of the five treatments. In HRTLE treatment, lateral root formation rate were formed in almost of Sowonkong although reduced in order of Pungsannamulkong and Junjery. However, there was no significant difference between the other treatments. Lateral roots per sprout were the lowest in HRTLE treatment of the 5 treatments. In all treatments except the chitosan treatment, the roots were most formed in Sowonkong but least in Junjery. Sprout length adding hypocotyl and root was the shortest in Junjery compared to the other two cultivars. and was the longest in tea leaf extract treatment but the shortest in HRTLE treatment. The result in total fresh weight of sprouts was similar to that of the sprout length.
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KEYWORD
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mungbean (Vigna radiata L.) sprout, presoaking treatments, lateral roots, growth, morphological characters
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