文献类型：期刊文献

中文题名：水分胁迫对4树种幼苗叶水势和持水力的影响

英文题名：Effect of water stress on leaf water potential and leaf holding water capacity in seedlings of the different tree species

作者：史胜青[1,2] 孙晓光[3] 王颖[2] 袁玉欣[2] 江泽平[1]

第一作者：史胜青

机构：[1]中国林业科学研究院林业研究所;[2]河北农业大学林学院;[3]保定市交通局公路管理处

年份：2009

卷号：32

期号：6

起止页码：24-28

中文期刊名：河北农业大学学报

外文期刊名：Journal of Agricultural University of Hebei

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：河北省自然科学基金(301145);河北省林业局重点项目;国家"十一五"科技支撑项目(2006BAD03A01-07)

语种：中文

中文关键词：水分协迫;不同树种;叶水势;持水力

外文关键词：water stress; different tree species; leaf water content; water potential

分类号：S759.3

摘要：以皂荚(Gleditsia sinensis)、核桃(Juglans regia)、柿子(Diospyros kaki)和黑枣(Diospyros lotus)为材料,在田间持水量为80%、60%、40%和30%的条件下对4树种幼苗叶含水量、叶水势和叶持水力进行了研究。结果表明:严重水分胁迫下,4树种叶含水量降低幅度是核桃<柿树<皂荚<黑枣,核桃和柿树能够保持较高的叶水势,而皂荚和黑枣的叶水势则比较低;充足供水条件下,4树种叶持水力是皂荚>核桃>柿树>黑枣,水分胁迫诱导了皂荚、柿树和黑枣叶片持水力的提高,而耐旱的核桃却没有明显的变化。
Leaf water content,leaf water potential and leaf holding water capacity of four tree seedlings（Gleditsia sinensis,Juglans regia,Diospyros kaki and Diospyros lotus） were studied under four water stress treatments： 80%,60%,40% and 30% of soil field capacity.The results showed that the range of decrease in leaf water content of four trees was J.regia〈D.kaki〈G.sinensis〈D.lotus under severe water stress（30%）,and leaf water potential of J.regia and D.kaki could maintain the higher level,but that of G.sinensis and D.lotus was lower under severe water stress;leaf holding water capacity of four trees was G.sinensis〉J.regia〉D.kaki〉D.lotus under normal condition（80%）,but,it was prompted in G.sinensis,D.kaki and D.lotus,instead of J.regia under water stress.