| 盐胁迫对油葵幼苗生长及离子吸收·分布的影响 |
| |
| 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, 0(17): 10317-10320 |
| |
| 作者姓名： | 杨晓翠 李文建 曲颖 张天虎 |
| |
| 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; |
| |
| 基金项目： | 中国科学院西部之光“西部博士资助”项目(0806270XBB) |
| |
| 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。
|
| 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 |
| |
| 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, 0(17): 10317-10320 |
| |
| Authors: | YANG Xiao-cui et al |
| |
| Affiliation: | YANG Xiao-cui et al (Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou,Gansu 730000) |
| |
| 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... |
| |
| Keywords: | Oil sunflower seedlings NaCl Ion absorption |
| 本文献已被 CNKI 维普 等数据库收录！ |
