Abstract
The most effective cytokinin source for adventitious shoot regeneration of in vitro grown leaves from 'Gala' apple was BA with the concentration of 4.0 mg/L, while auxin source was IAA, IBA and NAA with the concentration of 0.1 mg/L, respectively. As the result of combinational treatment of BA and NAA, 6.0 or 8.0 mg/L BA with 0.5 mg/L NAA was effective for adventitious shoot regeneration from leaf tissues of 'Gala', 0.1 mg/L NAA + 8.0 mg/L BA and 1.0mg/L NAA + 8.0 mg/L BA for internode, and 0.1 mg/L NAA + 4.0 mg/L BA for petiole.
'Gala' 잎조직의 신초 재분화에 효과적인 cytokinin 종류와 농도는 BA 4.0 ㎎/L였고, auxin 종류와 농도는 IAA, IBA, 및 NAA 각각 0.1 ㎎/L였다. BA와 NAA를 농도별로 조합 처리하여 'Gala'의 잎, 절간 및 엽병의 신초 재분화 정도를 비교한 결과, 잎조직은 0.5 ㎎/L NAA + 6.0 ㎎/L BA와 0.5㎎/L NAA + 0.8 ㎎/L BA 처리구에서, 절간조직은 0.1 ㎎/L NAA + 0.8 ㎎/L BA와 1.0 ㎎/L NAA + 0.8 ㎎/L BA 처리구에서 신초 재분화율이 가장 높게 나타났으며, 엽병조직은 0.1 ㎎/L NAA + 4.0 ㎎/L BA 처리구에서 가장 높았다.
