현장농수산연구지 (Journal of Practical Agriculture & Fisheries Research)

국립한국농수산대학교 교육개발센터 (Korea National University of Agriculture and Fisheries)
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P-V 곡선법을 활용한 어수리의 수분특성 분석

Water Relations Parameters of Heracleum moellendorffii Hance Obtained from Pressure-Volume Curves

  • 이경철 (국립생태원 생물관리연구본부 온실식물부) ;
  • 권영휴 (한국농수산대학 산림조경학과) ;
  • 이경민 (한국농수산대학 산림조경학과) ;
  • 한상균 (한국농수산대학 산림조경학과)
  • Lee, K.C. (National Institute of Ecology, Dept. of Ecorium Plant) ;
  • Kwon, Y.H. (Korea National College of Agriculture and Fisheries) ;
  • Lee, K.M. (Korea National College of Agriculture and Fisheries) ;
  • Han, S.K. (Korea National College of Agriculture and Fisheries)
  • 발행 : 2017.06.30
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초록

This study was carried out to establish a proper cultivation site and to diagnose the drought tolerance of Heracleum moellendorffii leaves by using pressure-volume curves. As a result of analysing data measured, the leaf of H. moellendorffii showed the osmotic pressure at full turgor (Ψosat) was -1.0MPa, and that at incipient plasmolysis (Ψotlp) -1.2MPa. Then, the value of maximum bulk modulus of elasticity Emax was 28MPa, showing the sightly strong drought tolerance of H. moellendorffii. Furthermore, the values of relative water contents RWCtlp and RWC* were above 88%, showing that the function of osmoregulation is somewhat better. Thus, responses to water relations such as Ψosat, Ψotlp, Emax, RWCtlp and RWC* of H. moellendorffii showed it's slightly high drought tolerance property.

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참고문헌

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