현장농수산연구지 (Journal of Practical Agriculture & Fisheries Research)

국립한국농수산대학교 교육개발센터 (Korea National University of Agriculture and Fisheries)
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P-V 곡선법을 활용한 땃두릅나무의 내건성 평가

Evaluation of Drought Tolerance of Oplopanax elatus Obtained from Pressure-Volume Curves

  • 이경철 (국립한국농수산대학 산림학과) ;
  • 권영휴 (국립한국농수산대학 조경학과) ;
  • 권윤구 (국립한국농수산대학 조경학과) ;
  • 한상균 (국립한국농수산대학 산림학과)
  • Lee, K.C. (Department of Forestry, Korea National College of Agriculture and Fisheries) ;
  • Kwon, Y.H. (Department of Landscape Architecture, Korea National College of Agriculture and Fisheries) ;
  • Kwon, Y.K. (Department of Landscape Architecture, Korea National College of Agriculture and Fisheries) ;
  • Han, S.K. (Department of Forestry, Korea National College of Agriculture and Fisheries)
  • 투고 : 2019.03.15
  • 심사 : 2019.05.07
  • 발행 : 2019.06.28
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초록

This study was carried out to establish a proper cultivation site and to diagnose the drought tolerance of Oplopanax elatus leaves by using pressure-volume curves. As a result of analysing data measured, the leaf of Oplopanax elatus showed the osmotic pressure at full turgor(Ψosat) was -0.77 MPa, and the osmotic pressure at incipient plasmolysis(Ψotlp) was -0.90 MPa. Then, the value of maximum bulk modulus of elasticity Emax was 3.7 MPa, showing that slightly lower drought tolerance of Oplopanax elatus. Furthermore, the values of relative water contents RWCtlp and RWC* were above 80%, showing that the function of osmoregulation is somewhat better. Thus, responses to water relations such as Ψosat, Ψotlp, Emax, RWCtlp and RWC* of Oplopanax elatus showed relatively lower drought-tolerance property indicating that those growth are appropriate in high moisture soil sites.

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참고문헌

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