Abstract:

Anatomical structure of leaves of 5 poplar clones were observed to explore the ways of poplar drought resistance breeding. Applying the method of subordinate function, 9 drought resistance indexes of 5 species were measured and a comprehensive evaluation on drought resistance of them was given. The results showed that the drought resistance capability decreased in order of Albaginaceae, Agelastica alni orienealis ealy, P. xiaoz huanica‘Zhongtian, P. alba×P. alba var. pyram idalis, Hamamelis virginiana. Applying the method of grey correlative analysis, the correlation of drought resistance and drought resistance indexes were analyzed. It indicated that the fitting to drought of plant leaves went through different approaches, also differed from one another on behaviour ways.