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Effects of Aeration Temperature and Period after BA Treatment on Growth and Lateral Root Formation of Soybean Sprouts  

강진호 (경상대학교 생명과학연구소)
전병삼 (경상대학교 농업생명과학대)
조용준 (경상대학교 농업생명과학대)
박철종 (경상대학교 농업생명과학대)
윤수영 (경상대학교 농업생명과학대)
전승호 (경상대학교 농업생명과학대학)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.49, no.3, 2004 , pp. 216-221 More about this Journal
Abstract
Treatment effect of benzyladenopurine (BA) used to block the lateral roots formed on soybean sprouts should be influenced by its applying methods. This study was done to check the effects of temperature and period from seed imbibition into 2 ppm BA solution to the first watering for sprout culture on growth and morphology of soybean sprouts. Imbibed three cultivar (cv. Pungsannamulkong, Sowonkong and Junjery) seeds for 5 houys into 2 ppm BA solution were placed under different temperatures (AT; 20, 30, $40^{\circ}$) and periods (AP; 0, 1, 2, 3, 4 hours). On the 6th day, the soybean sprouts were classified by 4 categories on the base of hypocotyl length; >7cm, 4 to 7cm), < 4cm and non-germination to calculate their composition rates, number of lateral roots, lengths of hypocotyl and root diameters at middle and hook of hypocotyl, and fraction dry weights were measured. Germination and growth responses of the cultivars were changed by AT and AP treatments. The responses, lateral root formation and fresh weights were, however, mainly affected by the cultivars used rather than Af treatment. Rate of the sprouts which formed lateral roots was decreased with increased periods to 4 hours, but their number per sprout was not different between the treatments of longer than 3 hours. Lengths of hypocotyl and root organ and total fresh weights were the highest in an hour AP treatment although longer than 3 hour AP treatments did not showed the significant difference in the lengths. Conclusionally AP treatment was more important than Af one in seed aeration for soybean sprout culture immediately after imbibition into BA solution, and was done at least for 3 hours.
Keywords
soybean sprout; aeration temperature; aeration period; lateral root; growth;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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