Effects of Several Factors on In Vitro Multiplication of Apple Root Stock, M.9 T-337

사과 왜성대목 M-9의 기내대량번식에 미치는 배양조건의 영향

  • Published : 2001.01.01

Abstract

The experiments were conducted to establish the in vitro culture system of apple rootstock M.9. The meristem tissue of M.9 were pre-treated in antiox: dant solution containing 100 mgL$^{-1}$ ascorbic acid and 150 mgL$^{-1}$ citric acid for 30 minutes, transferred to the MS liquid medium added with 0.1 mgL$^{-1}$ IBA, 0.5 mgL$^{-1}$ GA, and 30 gL$^{-1}$ sucrose, which shaked by 50 rpm for 2 weeks, and then, cultured in same composition of MS agar medium. This treatment stimulated shooting from the tissue, the most favorably, compared with other treatments. All young shoots produced normal roots when they were shake-cultured on the 1/2MS liquid medium added with 0.5 mgL$^{-1}$ IBA, 30 gL$^{-1}$ sucrose and 1,000 times diluted solution of Hormex by 50 rpm for one week, and subsequently transferred to the 8 gL$^{-1}$ agar medium of the same composition as pre-culture medium minus Hormex.

고밀도 저수고형의 성공적인 왜화재배를 위한 사과 왜성대목인 M.9 T-337의 대량증식체계를 확립하기 위하여 실험한 결과를 요약하면 다음과 같다. 초기 생장점 배양은 채취한 경정조직을 ascorbic acid와 citric acid를 각각 100 mgL$^{-1}$와 150mgL$^{-1}$로 혼합한 용액에 30분간 전처리한 다음, IBA 0.1 mgL$^{-1}$, GA 0.5 mgL$^{-1}$와 sucrose 30 gL$^{-1}$가 첨가된 MS 액체배지에서 50 rpm으로 2주간 진탕배양한 후, 한천 8 gL$^{-1}$가 첨가된 동일조성의 MS 배지에서 배양하는 것이 신초형성에 가장 좋았다. 발근은 증식된 신초를 1주일간 Hormex 1,000배 액이 첨가된 1/2 MS 기본배지에 IBA 0.5 mgL$^{-1}$, sucrose 30 gL$^{-1}$ 등이 함유된 배지에서 50 rpm으로 진탕배양한 다음 Hormex를 제외한 동일 조성의 한천배지에 옮겨 배양하였을 때 배양된 모든 유묘로부터 정상적인 발근을 유도할 수 있었다.

Keywords

References

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