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| 水分胁迫对4树种幼苗叶水势和持水力的影响 | |
| 引用本文： | 史胜青,孙晓光,王颖,袁玉欣,江泽平.水分胁迫对4树种幼苗叶水势和持水力的影响[J].河北农业大学学报,2009,32(6). |
| 作者姓名： | 史胜青 孙晓光 王颖 袁玉欣 江泽平 |
| 作者单位： | 1. 中国林业科学研究院,林业研究所,北京,100091;河北农业大学,林学院,河北,保定,071000 2. 保定市交通局,公路管理处,河北,保定,071000 3. 河北农业大学,林学院,河北,保定,071000 4. 中国林业科学研究院,林业研究所,北京,100091 |
| 基金项目： | 河北省自然科学基金，河北省林业局重点项目和国家"十一五"科技支撑项目 |
| 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。 |
| 关 键 词： | 水分协迫 不同树种 叶水势 持水力 |
Effect of water stress on leaf water potential and leaf holding water capacity in seedlings of the different tree species |
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| SHI Sheng-qing,SUN Xiao-guang,WANG Ying,YUAN Yu-xin,JING Ze-ping.Effect of water stress on leaf water potential and leaf holding water capacity in seedlings of the different tree species[J].Journal of Agricultural University of Hebei,2009,32(6). | |
| Authors: | SHI Sheng-qing SUN Xiao-guang WANG Ying YUAN Yu-xin JING Ze-ping |
| Institution: | SHI Sheng-qing1,2,SUN Xiao-guang3,WANG Ying2,YUAN Yu-xin2,JING Ze-ping1(1.Institute of Forestry Research,Chinese Academy of Forestry,Beijing 100091,China,2.College Forestry,Agricultural University of Hebei,Baoding 071000,3.Highway Administration,Transportation Bureau of Baoding,China) |
| Abstract: | 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 |
| Keywords: | water stress different tree species leaf water content water potential |
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