Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effect of Shading Level on Growth and Morphological Characteristics of Ligularia fischeri Seedling

차광수준이 곰취 유묘의 생장 및 형태적 특성에 미치는 영향

  • Song, Ki Seon (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Jeon, Kwon Seok (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Kim, Chang Hwan (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Yoon, Jun Hyuck (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Park, Yong Bae (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Kim, Jong Jin (Department of Environmental Design, Konkuk University)
  • 송기선 (국립산림과학원 남부산림자원연구소) ;
  • 전권석 (국립산림과학원 남부산림자원연구소) ;
  • 김창환 (국립산림과학원 남부산림자원연구소) ;
  • 윤준혁 (국립산림과학원 남부산림자원연구소) ;
  • 박용배 (국립산림과학원 남부산림자원연구소) ;
  • 김종진 (건국대학교 녹지환경계획학과)
  • Received : 2014.03.12
  • Accepted : 2014.05.27
  • Published : 2014.06.30
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Abstract

This study was carried out to survey the early growth characteristics of Ligularia fischeri, plants of half-shaded grounds, primarily used as functional wild edible greens and examine its shading treatment to transplant seedling. The shading treatment was regulated with the shading level(full sunlight, 35%, 50%, 75%, and 95% of full sunlight). According to the experiment, the height was the highest under 75% of shading (17.3 cm), and root diameter was the highest under full sunlight (2.13 mm). It was found that fresh weight (leaf, shoot, root and whole) was the highest (1.784 g, 1.330 g, 0.791 g, 3.905 g respectively ) under 50% of shading. In case of dry weight, leaf, shoot and whole dry weight were surveyed the highest under 35% of shading, and root dry weight was the highest under full sunlight. It was found that S/R ratio and moisture contents (leaf, shoot, root and whole) were the highest under 95% of shading. Leaf area was the highest under 50% of shading ($39.3cm^2$) and the higher shading level, the higher SLA and LAR. It was surveyed that the higher shading level, the thinner leaf thickness. In case of root characteristics, it was showed that the relatively high height growth under 35%~75% of shading, excepting 95% of shading. As a result of surveying the whole experiment, it is concluded that the early growth of L. fischeri is more effective in producing it under 50% of shading.

본 연구는 기능성 산채로서 수요가 확대되고 있는 곰취를 포장에서 본격적으로 생산하는데 필요한 이식용 유묘를 생산하는 과정에서 차광처리가 반음지식물인 곰취 유묘의 초기 생장에 어떠한 영향을 미치는지 알아보고자 실시하였다. 실험은 차광수준(전광 및 35, 50, 75, 95% 차광)을 달리하여 실시하였으며, 차광별 생장과 형태적 특성을 각각 조사하였다. 실험 결과, 곰취의 초장은 75%차광에서 17.3cm, 뿌리직경은 전광에서 2.13mm로 가장 높은 생장을 보인 것으로 조사되었다. 부위별(잎, 줄기, 뿌리) 및 전체 생체중은 모두 50% 차광에서 각각 1.784g, 1.330g, 0.791g, 3.905g으로 가장 높은 것으로 조사되었다. 건물중의 경우, 지상부(잎, 줄기)와 전체 건물중은 35% 차광에서, 뿌리는 전광에서 가장 높게 나타났다. S/R율, 부위별(잎, 줄기, 뿌리) 및 전체 함수율은 모두 95% 차광에서 가장 높은 것으로 나타났다. 엽면적은 50% 차광에서 $39.3cm^2$로 가장 높게 조사되었으며, SLA와 LAR은 차광 처리구에서 차광률이 높아질수록 증가하였다. 엽두께는 차광률이 높아질수록 얇아지는 경향을 보였다. 뿌리 특성에서는 95% 차광을 제외하고 전반적으로 좋은 생장을 보였으나 상대적으로 35~75% 차광에서 세근발달이 더 좋은 것으로 나타났다. 본 실험결과를 종합적으로 살펴보면, 곰취의 유묘는 50% 차광처리하여 생육하는 것이 포장 이식용 유묘 생산에 보다 효과적일 것으로 판단된다.

Keywords

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