Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Several Factors Affecting Seed Emergence, Seedling Quality and Survival of Potted Seedling on Ligularia fischeri

곰취 종자의 발아, 유묘특성 및 분화묘 활착에 미치는 몇 가지 요인

  • Lee, Ki Cheol (Useful Plant Resources Center, Korea National Arboretum of the Korea Fores Service) ;
  • Lee, Su Gwang (Division of Special-purpose Trees, National Institute of Forest Science) ;
  • Lee, Uk (Division of Special-purpose Trees, National Institute of Forest Science) ;
  • Noh, Hee Sun (Specialty Crops Experiment Station, Gangwondo Agricultural Research and Extension Services) ;
  • Lee, Jeong Ho (Specialty Crops Experiment Station, Gangwondo Agricultural Research and Extension Services)
  • 이기철 (국립수목원 유용식물증식센터) ;
  • 이수광 (국립산림과학원 특용자원연구과) ;
  • 이욱 (국립산림과학원 특용자원연구과) ;
  • 노희선 (강원도농업기술원 특화작물시험장) ;
  • 이정호 (강원도농업기술원 특화작물시험장)
  • Received : 2015.02.23
  • Accepted : 2016.01.09
  • Published : 2016.03.31
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Abstract

A study was conducted to evaluate the effect of collected region(Bongpyeong in Gangwon, 690 m, Mt. Halla in Jeju, 1,085 m), pre-treatment (stratification, soaked in distilled water or $GA_3$) and shading (control, 50%, 80%) on seed emergence and seedlings growth of Ligularia fischeri. The result showed that seed emergence (%) of L. fischeri were 6.9~75.5% (Gangwon : 6.9~32.8%, Halla : 22.2~75.5%). Maximum seed emergence (%) of 32.8 (Gangwon) and 75.5 (Halla) were achieved for seeds were stratified, soaked in distilled water, and under non-shading for L. fischeri (Gangwon), whereas seeds were stratified, soaked in $GA_3$ 100 ppm, and under 80% shading for L. fischeri (Halla). In this study, the best seedling vigor index (SVI) of L. fischeri (Gangwon) and L. fischeri (Halla) were obtained when seeds were stratified, soaked in distilled water, and under 50% shading. The survival rate of potted seedlings for L. fischeri (Halla) were 100% of all shading conditions, but there were decreased by 77.8%, 61.1%, 55.6%, as an increasing shading rate (con, 50%, 80%) for L. fischeri (Gangwon). Therefore, good seedlings were obtained when seed (Mt. Halla) of L. fischeri were stratified, soaked in distilled water, and under 50% shading, and then seedlings were transferred in pot.

본 연구는 산림자원 유용식물인 곰취 종자의 채집지역(강원도 봉평 해발 690 m, 제주도 한라산해발 1,085 m), 전처리(저온습윤처리, 증류수 및 $GA_3$ 침지처리) 및 차광처리(50%, 80%, 대조구)가 발아율, 유묘 특성 및 분화묘 활착에 미치는 영향을 조사하기 위해 수행되었다. 그 결과 곰취 종자의 발아율 범위는 6.9~75.5%였으며, 이 중 강원도 봉평지역에서 수집한 곰취 종자(강원곰취)의 발아율 범위는 6.9~32.8%, 한라산에서 수집한 곰취 종자(한라곰취)의 발아율 범위는 22.2~75.5%이었다. 강원곰취는 저온습윤처리와 증류수 침지처리 후 차광처리 대조구에서 가장 높은 발아율(32.8%)을 나타낸 반면, 한라곰취는 저온습윤처리와 $GA_3$ 100 ppm 침지처리 후 80% 차광처리에서 가장 높은 발아율(75.5%)을 나타내었다. 유묘활력지수의 경우 강원곰취와 한라곰취 모두 저온습윤처리와 증류수 침지처리 후 50% 차광처리에서 가장 우수하였다. 분화묘 생육특성의 경우, 한라곰취는 모든 차광처리에서 100% 적응하여 활착한 반면, 강원곰취는 차광처리가 높아짐(대조구, 50%, 80%) 에 따라 활착률이 77.8%, 61.1%, 55.6%로 감소하였다. 따라서 본 연구에서 곰취 종자로부터 우수한 유묘 생산과 분화묘 활착을 위해서는 한라곰취종자를 저온습윤처리하여 증류수 침지 후 파종하여 50% 차광처리에서 발아시키고 이를 분화묘로 이식하는 것으로 나타났다.

Keywords

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