BA 침종기간이 숙주나물의 형태와 생장에 미치는 영향 = Effect of Benzyladenopurine Soaking Period on Growth of Mungbean Sprouts

다국어 초록 (Multilingual Abstract)

In bean sprout culture water imbibition and benzyladenopurine (BA) treatment are done at the same time. The study was carried out to check the effect of treatment period (3, 5, and 7 hours) on growth of mungbean (cv. Keumseongnogdu, Owoolnogdu, and Zhong Lu 1) sprouts and to analyse its absorption amount on the base of their moisture content. The 3 cultivar seeds were soaked in 50 ppm BA solution immediately before 3 hour aeration and then cultured for 6 days. The sprouts were sorted by 4 categories on the base of hypocotyl length; > 7 ㎝, 4 to 7 ㎝, < 4 ㎝, and non-germination, and their morphological characters, fresh and dry weights were measured. The cultivar Zhong Lu 1 had the highest rate in longer than 7 ㎝ hypocotyls of the three cultivars but the lowest one in shorter than 4 ㎝. Rates of the above 4 categories in cv. Keumseongnogdu, Owoolnogdu showed no significant difference between the treatment periods while one of longer than 7 ㎝ hypocotyls in cv. Zhong Lu 1 was decreased with longer treatment period. Lateral roots were less formed with longer treatment period, especially as lengthened from 3 to 5 hours. Hypocotyl and root were also lengthened with longer treatment period and hypocotyl was more thickened in 5 hour treatment period than in the two others. Total fresh and dry weights per sprout showed no significant difference between treatment periods although cv. Zhong Lu 1 relatively faster grew than the other cultivars. In the case of shorter than 5 hour treatment periods the absorption amount of BA was the greatest in cv. Zhong Lu 1 but in 7 hour treatment period it was the greatest in cv. Keumseongnogdu and Zhong Lu 1.

국문 초록 (Abstract)

숙주나물의 세근 발생을 방지하기 위한 BA 처리는 주로 침종기간에 행하여진다. 본 연구는 숙주나물 생산에서 BA 흡수량과 관련된 침종기간의 설정에 필요한 정보를 제공하고자 3개 공시품종 (금성녹두, 어울녹두, 중록1호)을 이용하여 침종기간 (3, 5, 7시간)에 따른 숙주나물의 생장과 형태, 이들 품종의 흡수량으로 BA 소모량을 조사한 결과를 요약하면 다음과 같다.
1. 종자의 수분흡수에서 어울녹두는 침종기간 내내 가장 낮았던 반면, 금성녹두와 중록1호는 침종초기에서는 중록1호가 많았으나 침종 후기에는 거의 비슷한 것으로 나타났다.
2. 상품성이 가장 높은 하배축 길이가 7 ㎝ 이상의 비율은 중록1호에서 가장 높았고, 금성녹두, 어울녹두 순으로 낮아졌으나, 상품화가 불가능한 4 ㎝ 이하의 비율은 7 ㎝ 이상과는 반대의 결과를 보였다. 침종기간이 7시간으로 길어질수록 하배축 길이가 7 ㎝ 이상의 비율이 감소되는 중록1호를 제외하고는 침종기간간에 뚜렷한 차이가 없었다.
3. 세근은 침종기간이 길수록 적게 형성되었으나 3시간에서 5시간으로 연장할 경우 현저히 줄어드는 경향을 보였다. 하배축과 뿌리 길이는 침종기간이 길수록 짧아졌으나 하배축 직경은 5시간 침종시 대체로 굵은 것으로 나타났다.
4. 개체당 전체 생체중과 건물중은 생장이 상대적으로 빠른 중록1호에서 가장 많았으며, 침종기간의 장단간에는 차이가 없었다.
5. 흡수량으로 평가된 BA 소모량은 침종기간이 5시간보다 짧을 경우 중록1호에서 가장 많았던 반면, 7시간 침종시킬 경우 금성녹두와 중록1호가 거의 비슷하게 많은 것으로 분석되었다.

참고문헌 (Reference)

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