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서지정보
ㆍ발행기관 : 한국화훼학회
ㆍ수록지정보 : 화훼연구 / 24권 / 4호
ㆍ저자명 : 구본순, 조문수
ㆍ저자명 : 구본순, 조문수
영어 초록
This study was conducted to establish a propagation system by shoot tip culture of Hosta plantaginea ‘Joseon’, of which production has increased as landscape plants and cut foliage. We evaluated the effects of culture methods (drum shaker in liquid, filter paper bridge in liquid and solid media), media (1/2MS , 1MS, 2MS), cytokinin (BA, kinetin, TDZ), and light quality (fluorescent lamp, red LED, blue LED, red LED + blue LED) on shoot multiplication and rooting. In the treatment by culture methods, the highest number of shoots (2.4 shoots per explant) was obtained on liquid media with drum shaker (BA 4.0 mg·L-1+ NAA 0.2 mg·L-1) and solid medium (BA 4.0 mg·L-1+ NAA 0.2 mg·L-1), but the shoots showed vitrification symptoms in liquid media. In media treatment, underground growth was good in 1/2MS and 1MS: overground growth was good in 1MS and 2MS but shoot length of 2MS tended to be shortened. In the treatment by cytokinin, kinetin 2.0 mg·L-1+ NAA 0.2 mg·L-1 and k inetin 4.0 mg·L-1+ NAA 0.2 mg·L-1 showed the highest number of shoots (3.4 and 3.3 shoots per explant, respectively). In the treatment by light qualities, red LED showed the highest number of shoots, shoot length, leaf number, fresh weight, dry weight, and leaf area. Red LED enhanced shoot length elongation, but chlorophyll content was lower. The content of chlorophyll was highest in blue LED, but the number of the shoots was lower. Shoots were rooted easily on basa MS medium without NAA, showing 100% of rooting. As a result, it might be considered that roughly 6,561 plants can be produced through subculture for one year in vitro from only one shoot tip of H. plantaginea ‘Joseon’ in MS semi-solid medium with BA 4.0 mg·L-1+ NAA 0.2 mg·L-1 or with kinetin 4.0 mg·L-1+ NAA 0.2 mg·L-1.참고 자료
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