| 盐胁迫对油葵幼苗生长及离子吸收·分布的影响 |
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| 引用本文： | 杨晓翠,李文建,曲颖,张天虎.盐胁迫对油葵幼苗生长及离子吸收·分布的影响[J].安徽农业科学,2011(17):10317-10320. |
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| 作者姓名： | 杨晓翠 李文建 曲颖 张天虎 |
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| 作者单位： | 中国科学院近代物理研究所;中国科学院研究生院;甘肃亚盛实业(集团)股份有限公司; |
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| 基金项目： | 中国科学院西部之光“西部博士资助”项目(0806270XBB) |
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| 摘 要： | 目的]研究不同浓度NaCl对油葵幼苗干、鲜重及离子吸收和分布的影响。方法]采用不同浓度NaCl溶液模拟盐胁迫环境，测定油葵幼苗干、鲜重及离子含量。结果]NaCl胁迫抑制油葵幼苗生长，降低了幼苗干、鲜重。叶片鲜重下降最明显，200mmol／LNaCl胁迫时下降约60％；子叶鲜重下降最少，200mmol／LNaC1时下降约13％。干重的下降程度同鲜重相似，200mmol／LNaC1胁迫时。根、茎、叶、子叶的干重与对照组相比分别下降约35％、39％、55％和8％。NaCl胁迫下，油葵幼苗根和茎中Na＾＋含量上升，K＾＋含量下降；Na＾＋主要集中在根和茎中，叶片中较少；根中K＾＋含量下降最明显，叶片中K＾＋含量相对较高。根和茎中Ca＾2、Mg＾2＋含量下降，叶片和子叶中Ca＾2舍量相对稳定，子叶中Mg＾2＋含量略上升。结论]油葵幼苗在NaCl胁迫下保持较高的矿物质元素吸收和运输以及相对稳定的离子平衡，可能是油葵具有较高耐盐性的原因。
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| 关 键 词： | 油葵 NaCl 离子吸收 |
Impact of Salt Stress on Growth and Ion Uptake of Different Parts of Oil Sunflower Seedlings |
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| YANG Xiao-cui et al.Impact of Salt Stress on Growth and Ion Uptake of Different Parts of Oil Sunflower Seedlings[J].Journal of Anhui Agricultural Sciences,2011(17):10317-10320. |
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| Authors: | YANG Xiao-cui |
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| Institution: | YANG Xiao-cui et al (Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou,Gansu 730000) |
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| Abstract: | Objective]The purpose was to discuss the effects of different NaCl concentrations on fresh weight and dry weight,ion absorption and distribution in oil sunflower seedlings.Method]Under the simulated salt environment by using NaCl solutions at different concentrations,the dry weight,fresh weight and ion content of oil sunflower seedlings were determined.Result]With the increase of NaCl concentration,the growth rate of oil sunflower seedling was inhibited.In addition,its fresh weight and dry weight also de... |
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| Keywords: | Oil sunflower seedlings NaCl Ion absorption |
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