浙江农林大学学报2013，Vol.30Issue(4)：490-498,9.
干旱胁迫对5个海岛树种生长及生理特性的影响
Growth and physiological characteristics of five island tree species with drought stress
摘要
Abstract
To compare the drought-resistance of five island tree species,namely,Ilex integra,Machilus thunbergii,Cinnamomum japonicum var.chenii,Eurya emarginata,and Eurya japonica,an experiment was conducted using tree seedlings with different soil drought stress levels.Plant physiological responses to the drought stress were measured.Results showed that the root and shoot biomass decreased as drought increased,but the root-to-shoot ratios (R/S) increased first and then decreased.In addition,chlorophyll content (Chl) decreased as drought stress increased.With severe drought stress,the survival rate was C.japonicum var.chenii ＞ I.integra ＞ M.thunbergii =E.emarginata ＞ E.japonica.A subordinate function used to rank drought-resistance showed:C.japonicum var.chenii ＞ I.integra ＞ M.thunbergii ＞ E.japonica ＞E.emarginata.关键词
树木生理学/干旱胁迫/生理指标/海岛树种/抗旱性Key words
tree physiology/ drought stress/ physiological characteristics/ island trees/ drought resistance分类
农业科技引用本文复制引用
陈闻,赵颖,叶正钱,王美琴,王晶,王国明..干旱胁迫对5个海岛树种生长及生理特性的影响[J].浙江农林大学学报,2013,30(4):490-498,9.基金项目
浙江省重大科技专项(2010C12024) （2010C12024）
浙江省舟山市科技计划项目(2011C13029) （2011C13029）
