关键词: 红花檵木, 干旱胁迫, 生理特性, 抗旱性

Abstract: [Objective] The aim of the study was to study effects of soil drought on growth and physiological traits of L. chinense. [Method] Tn this study, there were four different water treatments. The growth and physiological indicators were measured and differences among treatments were analyzed. [Results] The damage magnitude was increased with increasing drought stress and time. RWC, nutrition and reproduction growth and was inhibited. However, relative conductivity, MDA, SOD, POD and CAT were increased. Pro, SS and SP were accumulated. [Conclusion] L. chinense was sensitive to drought stress. Slight drooght treatments can cause significant changes in various physiological indexes but the apparent features were not clear. The physiological and morphological indexes were affected substantially with increasing drought stress. Overall, L. chinense had strong resistance to drought. It could survive in moderate drought stress and endure severe drought stress that without water supplying for 60 days.

Key words: Loropetalum chinense, drought stress, physiological characteristics, drought resistance