Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Allelopathic Effect against Seed Germination and Seedling Growth of Picea jezoensis of Leaf Aqueous Extracts from Competition Species

경쟁 수종들의 잎 추출 수용액이 가문비나무 종자발아 및 유묘생장에 미치는 타감효과

  • Kim, Gil Nam (Department of Forest Genetic Resources, National Institute of Forest Science) ;
  • Han, Sim-Hee (Department of Forest Genetic Resources, National Institute of Forest Science) ;
  • Shin, Soo Jeong (Department of Wood and Paper Science, Chungbuk National University) ;
  • Kim, Du-Hyun (Department of Life Resources Industry, Dong-A University)
  • 김길남 (국립산림과학원 산림유전자원부) ;
  • 한심희 (국립산림과학원 산림유전자원부) ;
  • 신수정 (충북대학교 목재종이과학과) ;
  • 김두현 (동아대학교 생명자원산업학과)
  • Received : 2016.10.01
  • Accepted : 2015.11.16
  • Published : 2016.03.31
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Abstract

This study was conducted to evaluate the allelopathic effect against the regeneration of the seedling and to identify the presence of allelochemicals in Picea jezoensis natural population in Jirisan. Water-soluble extracts from leaves of different competition plants were collected to test their effects on seed germination and seedling growth of P. jezoensis. Phenolic compounds from leaves were quantified using GC/MS. The seed germination rate and seedling growth of P. jezoensis was reduced by extracts of all competition plants leaves. Monoterpenoids compound, which are generally well known in the allelochemicals has been detected in the leaf extracts. In conclusion, allelopathic chemicals of competition vegetation in P. jezoensis natural population could inhibit the seed germination and seedling growth of P. jezoensis, that is considered as a result of the lower seedling establishment.

본 연구는 가문비나무 집단 내 치수형성이 잘 이루어지지 않는 이유를 찾고자 실시하였다. 가문비나무 집단 내 치수형성을 방해하는 타감물질의 존재여부를 확인하고, 타감작용을 일으키는 수종을 확인하기 위해서 타감물질을 추출하여 종자발아 및 유묘생장에 미치는 영향을 조사하였다. 수용성 추출액은 GC/MS를 사용하여 수용성 페놀화합물의 유무를 확인하였다. 가문비나무 집단에서 채취한 주변 경쟁수종 잎의 수용성 추출물은 가문비나무 종자의 발아를 감소시켰으며, 유묘의 생장을 저해하였다. 추출액의 수용성 페놀화합물을 분석한 결과, borneol, Camphor, Longifolen, Longifolenaldehyde, Norbornene, Ketobornane, 1,8-Cineole, ${\alpha}$-Cadinol이 검출되었는데, 이들은 monoterpenoids 화합물로서, 타감물질로 잘 알려진 화합물들이다. 결론적으로, 가문비나무 집단 내 치수형성에 영향을 미치는 인자중의 하나가 주변 경쟁식생들의 타감효과에 의한 것으로 판단된다.

Keywords

References

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