관수방법과 BA 처리농도가 숙주나물의 생장과 형태에 미치는 영향

Effects of Watering Method and BA Concentration on Growth and Morphological Characteristics of Mungbean Sprouts

  • 류영섭 (경상대학교 농업생명과학대학) ;
  • 홍동오 (경상대학교 농업생명과학대학) ;
  • 이창우 (경상대학교 농업생명과학대학) ;
  • 김홍영 (경상대학교 농업생명과학대학) ;
  • 강진호 (경상대학교 농업생명과학대학)
  • Ryu Yeong-Seop (College of Agriculture & Life Sci., Gyeongsang Natl. Univ.) ;
  • Hong Dong-Oh (College of Agriculture & Life Sci., Gyeongsang Natl. Univ.) ;
  • Lee Chang-Woo (College of Agriculture & Life Sci., Gyeongsang Natl. Univ.) ;
  • Kim Hong-Young (College of Agriculture & Life Sci., Gyeongsang Natl. Univ.) ;
  • Kang Jin-Ho (College of Agriculture & Life Sci., Gyeongsang Natl. Univ.)
  • 발행 : 2006.06.01

초록

숙주나물의 세근 발생 억제용으로 이용되고 있으나 인체에 대한 유 무해가 밝혀져 있지 않은 BA의 처리량을 경감시킬 수 있는 가능성을 탐색하고자 중록l호를 공시재료로 BA 농도 (0, 10, 20, 30, 40, 50 ppm)를 달리하여 5 시간 침종시킨 후에 상면살수 방식과 하면담수 방식으로 6 일간 재배한 숙주나물의 생장과 형태를 조사하였던 바 그 결과를 요약하면 다음과 같다. 1. 개체당 세근수는 상면살수와 하면담수 방식 모두 20 ppm에서 30 ppm으로 처리농도가 증가될 경우 급격히 감소하는 경향을 보였다. 2. 관수방법에 관계없이 BA 농도가 증가할수록 하배축, 뿌리 및 전체 길이는 짧아졌던 반면, 하배축과 뿌리 길이의 비율과 하배축 직경은 커지는 경향을 보였다. 3. 개체당 전체생체중은 상면살수 및 하면담수 방식 모두 20 ppm 까지 BA 처리농도가 증가될수록 증가되는 경향을 보였으며, 이러한 증가는 주로 하배축의 증가에 기인되었다. 4. 하면담수 방식에 비하여 상면살수 방식으로 재배할 경우 하배축과 뿌리 길이도 길고, 개체당 전체생체중도 많아 숙주나물의 생장은 하면담수 방식보다는 상면살수 방식에서 촉진되는 것으로 나타났다.

Utilization of synthetic benzyladenine (BA) for bean sprout production should be reduced or minimized because of elevating production cost and not ascertaining action mechanism to human body. The study was done to compare the effects of BA concentrations under different watering methods (overspraying or underwatering) on growth and morphological characteristics of mungbean sprouts. Seeds of cv. Zhong-Lu 1 were soaked for 5 hours in the solutions with different BA concentrations (0, 10, 20, 30, 40, 50 ppm) before 4 hour aeration, and then were cultured for 6 days by both watering systems. Their morphological characters, fresh and dry weights were measured. Regardless of watering methods, lateral roots were sharply dropped over 30 ppm BA concentrations, and hypocotyl, root and total lengths were shortened with increased BA concentrations although ratios of hypocotyl to root lengths and hypocotyl diameters were enlarged with their increment. Total fresh weights were increased up to 20 ppm in overspraying method but up to 30 ppm in underwatering method mainly due to increment of hypocotyl fresh weights. The sprouts were faster grown in overspraying method than in underwatering method because the former showed longer lengths of hypocotyl and root, and total fresh weights.

키워드

참고문헌

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