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Breeding of Purple Flower-colored Dwarf 'Jiknyeo' from Hybridization of Campanula punctata Lam. × Campanula punctata Lam. var. rubriflora Mak.

애기초롱꽃(Campanula punctata Lam.)과 자주초롱꽃(C. punctata Lam. var. rubriflora Mak.)의 교잡을 통한 자주색 꽃을 가진 왜성 초롱꽃 '직녀' 육성

  • Choi, Nam-Hee (Division of Applied Life Science (BK21 Program), Graduate School, Gyeongsang National University) ;
  • Kim, Gyeong-Hee (Division of Applied Life Science (BK21 Program), Graduate School, Gyeongsang National University) ;
  • Lim, Mi-Young (Division of Applied Life Science (BK21 Program), Graduate School, Gyeongsang National University) ;
  • Kim, Zhoo-Hyeon (Department of Horticulture, College of Agriculture and Life Sciences, Gyeongsang National University) ;
  • Jeong, Byoung-Ryong (Division of Applied Life Science (BK21 Program), Graduate School, Gyeongsang National University)
  • 최남희 (경상대학교 대학원 응용생명과학부(BK21 Program)) ;
  • 김경희 (경상대학교 대학원 응용생명과학부(BK21 Program)) ;
  • 임미영 (경상대학교 대학원 응용생명과학부(BK21 Program)) ;
  • 김주현 (경상대학교 농업생명과학대학 원예학과) ;
  • 정병룡 (경상대학교 대학원 응용생명과학부(BK21 Program))
  • Received : 2012.01.18
  • Accepted : 2012.03.10
  • Published : 2012.06.30

Abstract

Campanula, native to Korea, is potentially an attractive potted or bedding plant. Experiments were conducted to produce a $F_1$ hybrid plant for a reduced plant height, 'Jiknyeo', by a conventional cross breeding between C. punctata Lam. and C. punctata Lam. var. rubriflora Mak. The crossing was carried out in July 2001 and the seeds were harvested in October 2001. Seeds were stored for two months at $5^{\circ}C$ for vernalization, and then were sown in March 2002. The $F_1$ hybrid have a purple flower color, and decreased plant height, leaf length, leaf width, and peduncle length. Each flower maintained freshness for a period of 20 days on the average. The whole flowering period of a plant was four months. The plant has flowering characteristics of an indeterminate inflorescence, prefers low humidity during the whole cultivation period, and requires low temperature in winter for flower bud differentiation.

한국에 자생하는 초롱꽃식물은 분화 및 조경용으로써의 이용가치가 높은 식물이다. 본 연구는 애기초롱꽃(C. punctata Lam.)을 모본으로, 자주초롱꽃(C. punctata Lam. var. rubriflora Mak.)을 부본으로 하여 표현형이 왜화된 $F_1$ 식물 '직녀'를 육 성하였다. 2001년 6월에 교배 시작하여 10월에 채종하였다. 이후 $5^{\circ}C$ 저온저장 후 2002년 3월에 파종하였다. $F_1$ 품종 특성으로는 화색은 자주색이며 초장, 엽장, 엽폭, 화경 등에서 각각의 모본에 비해 중간형질을 보였다. 개화특성은 각 소화경의 개화기간은 평균 14일이며, 식물체 전체 개화기간은 4개월이었고, 재배 시 추대를 위한 저온감응을 꼭 필요로 하는 식물로써 관수 시 과습은 피하는 것이 좋다.

Keywords

References

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