【摘要】 采用１３个与抗旱性有关的性状，应用数据极差标准化的方法，对３０个毛白杨无性系的抗旱性进行综合评定，排出抗旱位次。无性系７号、２５号、９８号、３０号、８５号和１４号的抗旱性较强。多性状综合评定树木的抗性可靠性高。蒸腾效率、气孔阻力和单位面积干重等性状和毛白杨的抗旱性关系较大。更多还原

【Abstract】 The 13 properties related to the drought resistance in 30 clones of Populus to-mentosa Carr. are used to comprehensively their drought resistability evaluate by means of Standardization of Data Range.According to the result,the order of drought resistance was arranged.And the five clones with hige drought resistance are as follows:clone-7,clone-25,clone-98,clone-30,clone -85.The method by using muti- properties to evaluat the drought resistance of trees is more reliable. Productivity of transpiration, resistance to stomata and dry weight per unit area of leaves are more relative to drought resistance of Populus tomentosa Carr.更多还原