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자생 숙은노루오줌의 종자발아에 미치는 환경조건과 화학적 처리의 영향

장보국;조주성;이철희
Jang, Bo Kook;Cho, Ju Sung;Lee, Cheol Hee

  • 투고 : 2016.02.01
  • 심사 : 2016.03.29
  • 발행 : 2016.04.30

초록

본 연구는 절화, 관상 및 의약소재로 이용가치가 높은 자생 숙은노루오줌의 종자 번식법을 개발하고자 수행되었다. 연구에 사용된 종자는 크기가 0.62×2.22 ㎜이며, 1,000립중은 40.5 ㎎으로 조사되었다. 종자의 기간별 수분흡수율을 조사한 결과, 2.57%였던 수분함량이 침지처리 24시간 만에 29.8%로 증가하였으며, 종피의 팽창이 관찰되었다. 숙은노루오줌의 종자는 저온요구성 광발아성으로 15℃, 명조건에서 최종발아율(40.8%)이 가장 높았으며, 발아상의 온도가 높아질수록 발아율은 낮아졌다. 암조건에서는 어느 온도조건에서도 전혀 발아되지 않았다. 종자에 생장조절제 및 무기염류를 처리한 결과, KNO3는 농도에 관계없이 무처리구에 비해 우수한 발아촉진 효과를 나타내었다. 특히 KNO3 20 mM 처리구에서 최종발아율(77.8%)과 발아세(96.1%)가 향상되었으며, 평균발아소요일수(11.3일)와 T50 (6.5일)도 효과적으로 단축시킬 수 있었다.

키워드

Astilbe;Saxifragaceae;GA3;Kinetin;KNO3;KCl

참고문헌

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피인용 문헌

  1. Seed Germination and Dormancy Breaking of Thalictrum rochebrunianum var. grandisepalum (H. Lev.) Nakai vol.29, pp.3, 2016, https://doi.org/10.7732/kjpr.2016.29.2.235