Drought resistance of four grasses using pressure-volume curve  

作　　者：HE Xingdong CONG Peifang GAO Yubao LU Jianguo WANG Haitao XUE Pingping ZHANG Xu 

机构地区：[1]College of Life Sciences,Nankai University,Tianjin 300071,China [2]College of Environmental Science and Engineering,Nankai University,Tianjin 300071,China [3]College of Physics,Nankai University,Tianjin 300071,China

出　　处：《Frontiers in Biology》2007年第4期425-430,共6页生物学前沿（英文版）

摘　　要：Pressure-volume curve(PV curve)technique is a major method for studying critical plant water potential and critical tissue water content when plasmolysis takes place.In the present study,a mathematical solution method is put forward to obtain parameters based on the PV curve.The cal-culated results for the parameters of Lolium perenne,Festuca arundinacea,Leymus chinensis and Stipa krylovii indicated that the mathematical solution method is convenient for actual research compared with the graphical method.Further analysis of the calculations suggested that drought resistance decreased in the following order:S.krylovii>F.arundinacea and L.chinensis>L.perenne.

关 键 词：pressure-volume curve water potential of plant PLASMOLYSIS index of drought resistance 

分 类 号：S54[农业科学—作物学]