Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effects of Seed Pre-treatment and Germination Environments on Germination Characteristics of Ligularia fischeri Seeds

종자 전처리 및 발아환경에 따른 곰취 종자의 발아특성

  • Jeon, Kwon Seok (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Song, Ki Seon (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) ;
  • Kim, Jong Jin (Dept. of Environmental Design, Konkuk University)
  • 전권석 (국립산림과학원 남부산림자원연구소) ;
  • 송기선 (국립산림과학원 남부산림자원연구소) ;
  • 김창환 (국립산림과학원 남부산림자원연구소) ;
  • 윤준혁 (국립산림과학원 남부산림자원연구소) ;
  • 김종진 (건국대학교 녹지환경계획학과)
  • Received : 2013.08.12
  • Accepted : 2013.09.06
  • Published : 2013.09.30
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Abstract

This study was carried out in order to examine the germination characteristics of Ligularia fischeri seeds, and it was to develop the more efficient pre-treatment and production system of the seeds. It was performed by two ways - temperature control (10, 15, 20 and $25^{\circ}C$) and shading treatment (Full sunlight, 35%, 50%, 75% and 95% of full sunlight). Seed pre-treatment before the each experiment was carried out by temperature (with low temperature and wetting treatment (LTW) for 0, 15, 30, 45 and 60days) and shading treatment (with drying at room temperature (DRT), drying at low temperature (DLT) and water soaking (WS) for 2 days). Seeds of L. fischeri were, regardless of seed pre-treatment, germinated well at $10^{\circ}C$ and the more temperature went up, the more germination rate went down. As a result of surveying shading treatment, 75% shading with DRT was the highest germination rate (68.1%) and 95% shading with WS was the lowest germination rate (48.6%). It was showed over-growth under 95% shading treatment experiment and withered in the full sunlight. As a result of surveying the whole experiment, L. fischeri seeds pre-treated with LTW for 15 days germinated well at $10^{\circ}C$ and under 50~75% shading treatment.

본 연구는 임산물 중 수요가 확대되고 있는 곰취 종자의 발아 특성을 구명하고자 실시되었으며, 이를 통하여 효율적인 종자 전처리 및 증식기술을 개발하고자 하였다. 실험은 두 종류로 진행되었는데, 온도(10, 15, 20, $25^{\circ}C$) 및 차광수준(전광, 35, 50, 75, 95%)에 따른 발아력을 조사하였다. 각 실험에 앞서 종자는 전처리를 받았는데, 온도실험에서는 0, 15, 30, 45 및 60일의 저온습윤 처리를, 차광수준 실험에서는 2일 동안 상온건조, 저온건조 및 수침처리를 실시하였다. 곰취 종자는 전처리에 관계없이 상대적으로 낮은 온도인 $10^{\circ}C$일 때 가장 발아가 잘 되었고, 온도가 높아질수록 발아율은 낮아지는 경향을 보였다. 차광수준 실험에서는 전체 처리 중 75% 차광 내 상온건조 처리에서 발아율이 68.1%로 가장 높았으며, 95% 차광 내 수침처리에서 48.6%로 발아율이 가장 낮은 것으로 조사되었다. 한편, 차광수준 실험에서 95%에서는 발아 후 웃자라는 현상을 보였으며, 전광에서는 고사 피해가 관찰되었다. 따라서 본 실험의 결과를 종합하면, 곰취 종자는 전처리로 15일 정도의 저온습윤 저장을 하여 $10^{\circ}C$ 정도의 낮은 온도(시기)에 파종을 하고, 50~75% 정도의 차광처리를 하였을 때 가장 좋은 발아율 및 초기생장을 보일 것으로 판단된다.

Keywords

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