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Growth Characteristics of Ligusticum chuanxing Hort. according to Soil and Meteorological Environment by Each Cultivation

재배지별 토양 및 기상환경에 따른 토천궁의 생육특성

  • Jeong, Dae Hui (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Kim, Ki Yoon (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Park, Hong Woo (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Jung, Chung Ryul (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Kim, Hyun Jun (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Jeon, Kwon Seok (Forest Medicinal Resources Research Center, National Institute of Forest Science)
  • 정대희 (국립산림과학원 산림약용자원 연구소) ;
  • 김기윤 (국립산림과학원 산림약용자원 연구소) ;
  • 박홍우 (국립산림과학원 산림약용자원 연구소) ;
  • 정충렬 (국립산림과학원 산림약용자원 연구소) ;
  • 김현준 (국립산림과학원 산림약용자원 연구소) ;
  • 전권석 (국립산림과학원 산림약용자원 연구소)
  • Received : 2020.08.11
  • Accepted : 2020.11.17
  • Published : 2021.02.01

Abstract

This study aimed to identify regions with a suitable growth environment for Ligusticum chuanxing Hort. and use basic data to identify appropriate cultivation and stable production strategies. Four main areas of cultivation were selected and the relationship between growth characteristics (aboveground and underground parts) and weather and soil environment was analyzed. Overall growth was found to be significantly higher in Pyeongchang. Atmospheric and soil temperatures showed a significant negative correlation with overall height from the ground, stem diameter, and growth characteristics of the underground part; leaf length and width were positively correlated. As insolation increased, the growth characteristics, excluding leaf size, showed a positive correlation. Soil characteristics such as organic matter (OM), N, P, and K showed negative correlations with the overall height of the upper part and growth characteristics of the underground part, including stem diameter. Analysis of roots indicated that OM, N, P, and K were essential and were absorbed through the soil. The OM, N, P, and K values in the Pyeongchang area, which showed the optimal growth, were lower than those in other areas. It is believed that these results can be used to select cultivation sites for L. chuanxing and establish cultivation technology in future.

본 연구의 목적은 약재로 사용되는 토천궁(Ligusticum chuanxing Hort.)에 대한 지역별 생육환경을 확인하고, 이에 따른 지상부 및 지하부 생장과의 상관관계를 규명하여 토천궁의 적정 재배지역 확인 및 안정적인 한약재 생산이 가능하게 하기 위한 재배기술 개발의 기초자료로 활용하는데 있다. 토천궁이 주로 재배되고 있는 봉화군, 영양군, 평창군과 더불어 기후 변화에 의한 재배지 이동을 고려하여 고위도 지역인 인제군을 포함한 4지역의 재배지를 선정하였으며, 생육특성을 비롯한 기상 및 토양환경을 측정하여 토천궁의 생육특성과 상관관계를 분석하였다. 4지역의 재배지 중 전체적인 생육은 평창지역에서 유의적으로 높게 확인되었다. 그리고 토양특성과의 상관관계에서 OM과 N, P, K는 지상부의 전체높이와 줄기 직경을 비롯한 지하부의 생육특성과 음의 상관관계를 보였는데 근권의 토양시료를 사용하여 분석한 것이라 실질적으로 토천궁의 생육에 필요한 성분인 유기물과 질소전량, 유효인산, 칼륨이 토천궁에 의해 흡수되었다고 판단되며 생육이 가장 우수했던 평창지역이 다른 지역에 비해 상대적으로 낮게 분석된 유기물(1.69%)과 질소전량(0.09%), 유효인산(897.72 mg/㎏), 칼륨(0.21 cmol+/㎏)의 수치가 본 실험에서 도출된 생육과 토양특성간 상관관계의 결과를 지지한다. 또한 기상환경과의 상관관계에서 대기 및 토양온도가 지상부의 전체높이, 줄기직경을 비롯하여 지하부의 생육특성과 P < 0.01수준에서 유의적인 음의 상관관계, 지상부 잎의 길이 및 너비와는 양의 상관관계를 보였다. 또한 일사량이 높아질수록 잎의 길이 및 너비를 제외한 생육특성이 양의 상관관계를 나타냈는데 이는 대기 및 온도의 상승으로 인한 잎의 증발산율 상승과 일사량에 따른 잎의 광합성량의 차이에 의한 결과라 사료되며, 본 연구의 결과는 향후 토천궁의 재배지 선정 및 재배기술 정립에 활용할 수 있을 것이라 판단된다.

Keywords

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