Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Improvement of Rooting of Stem Cuttings Propagated In vitro through Hydroponics in Potato

감자 기내증식 경삽묘의 양액재배를 이용한 발근촉진

Kim, Sung-Yeol;Chang, Dong-Chil;Kim, Hyun-Jun;Shin, Kwan-Yong
김숭열;장동칠;김현준;신관용

  • Published : 20020000
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Abstract

Shoot reared in vitro is widely used in hydroponic seed tuber production system in potato. Its major disadvantages in use is that thin and weak shoot can not be planted directly on hydroponic culture bed. Therefore, this study was conducted to improve the rooting of stem cuttings propagated in vitro through hydroponic culture system. In vitro shoots were grown in solutions for 30 days, stems were stem-cut, and transplanted into aeroponic culture bed. Early growth of roots and stem cuttings were increased in aeroponics than in conventional media rooting system composed of perlite and peatmoss. On 60 days after planting, these differences had no statistical significance. Plant growth and tuber yield on 90 days after planting were not different between the two rooting media. Considering these results, potato stem cuttings of in vitro shoots should be rooted in aeroponic culture system.

양액재배 씨감자생산에 이용되는 기내증식 줄기묘는 굵기가 가늘고 연약하여 양액재배상에 직접 정식할 수 없는 문제가 있다. 따라서 본 연구는 기내증식묘를 순화시킨 후 경삽하여 이용할 때 발근방법에 따른 발근율과 생육 및 수량의 차이를 구명하고자 수행하였다. 경삽묘의 발근과 생장은 배양토 삽식보다 양액재배 상에 삽식할 때 훨씬 빨랐다. 특히, 분무경 양액재배 상에서 발근된 경삽묘는 배양토에서 발근된 경삽묘보다 초기 생육이 왕성하였다. 그러나 정식 60일 후에는 차이가 없었으며, 수확기의 생육과 괴경의 수량도 발근방법 간에 유의성이 없었다. 그러므로 씨감자 양액재배에 이용되는 기내증식 순화묘는 경삽 후 인공배양토보다는 분무경 양액재배상에서 발근시켜 이용하는 것이 유리하다.

Keywords

References

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