Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Effect of Eucommia ulmoides Oliver Leaf Extract Concentration on Growth and Morphological Characteristics of Soybean Sprouts

두충잎 추출물 처리농도가 콩나물의 생장 및 형태에 미치는 영향

  • Kang, Jin-Ho (College of Agriculture & Life Sci., Gyeongsang Natl. Univ.,Research Institute of Life Sci., Gyenogsang Natl. Univ.) ;
  • Park, Cheol-Jong (College of Agriculture & Life Sci., Gyeongsang Natl. Univ.) ;
  • Yoon, Soo-Young (College of Agriculture & Life Sci., Gyeongsang Natl. Univ.) ;
  • Jeon, Seung-Ho (College of Agriculture & Life Sci., Gyeongsang Natl. Univ.) ;
  • Kim, Hee-Kyu (College of Agriculture & Life Sci., Gyeongsang Natl. Univ.)
  • 강진호 (경상대학교 농업생명과학대학,경상대학교 생명과학연구원) ;
  • 박철종 (경상대학교 농업생명과학대학) ;
  • 윤수영 (경상대학교 농업생명과학대학) ;
  • 전승호 (경상대학교 농업생명과학대학) ;
  • 김희규 (경상대학교 농업생명과학대학)
  • Published : 2005.02.28
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Abstract

Natural products has been occasionally used in place of growth regulators to control lateral root formation and growth of soybean sprouts. The study was done to measure the effects of treatment concentration of hard rubber tree (Eucommia ulmoides Oliver) leaf extract 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 water, its 5 and 10% solutions immediately before 6 day culture. 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. Rate of A was decreased with increased concentrations, while that of C showed reverse result compared to A. Regardless of concentrations, the former rate was less in cv. Junjery than in cv. Pungsannamulkong and Sowonkong than in cv. Junjery although the latter rate was truly opposite to the former one. In 10% treatment concentration, lateral roots were less formed in cv. Junjery although nearly formed in cv. Pungsannamulkong and Sowonkong. In all the 3 cultivars, lateral roots per sprouts were decreased with increased treatment concentration. shorter and thicker sprout was observed in cv. Junjery than in the other cultivars, and in increased concentrations compared to relatively lower ones. Total fresh weight was the greatest in cv. Sowonkong due to mainly increment of its hypocotyl, but was reduced with increased concentration due to mainly decrement of hypocotyl in all the cultivars.

생장조절제가 아닌 천연물을 이용한 콩나물의 세근형성과 생장을 조절하기 위한 시도가 이루어지고 있다. 본 연구는 세근의 형성을 억제하는 효과가 있는 것으로 보고되고 있는 두충잎 추출물의 처리농도(0, 5, 10%)가 콩나물 (풍산나물콩, 소원콩, 준저리)의 세근형성, 생장 및 형태에 미치는 영향을 조사하고자 실시되었던 바 그 결과를 요약하면 다음과 같다. 1. 처리농도를 5%에서 10%로 증가할 경우 하배축 길이가 7 cm 이상의 비율은 감소하는 반면, 하배축 길이가 4 cm 이하의 비율은 증가하였다. 그러나 처리농도에 관계없이 하배축 길이가 7 cm이상의 비율은 풍산나물콩과 소원콩에 비하여 준저리에서 가장 낮았던 반면, 하배축 길이가 4 cm 이하의 비율은 7 cm이상의 비율과 반대의 결과를 보였다. 2. 세근형성 비율은 풍산나물콩과 소원콩에서 처리효과가 미미한 반면, 준저리에서는 10%의 두충잎 추출물 처리에서 아주 낮았다. 한편 개체당 세근수는 공시품종 모두 처리농도가 증가할수록 감소하였으며 소원콩, 풍산나물콩, 준저리 순으로 적어졌다. 3. 콩나물의 전체 길이는 차이가 없었던 풍산나물콩과 소원콩보다는 준저리에서 짧았으며, 공시품종 모두 처리농도가 증가할수록 짧아지는 경향을 보였다. 하배축 직경은 품종간 반응에서 이와 유사하였으나, 처리농도가 증가할수록 굵어지는 경향이었다. 4. 개체당 전체생체중은 주로 하배축 생체중의 증가로 소원콩에서 가장 많았으며, 풍산나물콩, 준저리 순으로 적어졌다. 전체생체중은 처리농도가 증가할수록 하배축 생체중의 감소로 줄어드는 경향을 보였다.

Keywords

References

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