Na_2SO_4胁迫对酸枣种子萌发及根系生长的影响  

Effect of Na_2SO_4 on Seed Germination and Root Growth of Sour jujube

作　　者：潘贤良[1] 鲁晓燕[1] 王策[1] 王佳慧[1] 牛建新[1] 赵宝龙[1] 

机构地区：[1]石河子大学农学院,石河子832003

出　　处：《石河子大学学报（自然科学版）》2013年第1期14-17,共4页Journal of Shihezi University(Natural Science)

基　　金：石河子大学博士基金项目(RCZX200908);石河子大学重大科技攻关计划项目(gxjs2010-zdgg05-01)

摘　　要：为了探索酸枣耐盐生理机制,本试验研究了不同浓度Na2SO4处理对酸枣种子萌发和根系生长的影响,以及亚精鞍、谷胱甘肽、氯化钙、硝酸钾分别对酸枣种子的萌发和根系生长的影响。结果表明:与对照相比,高浓度(0.03、0.04和0.05mol/L)的Na2SO4显著抑制酸枣种子的发芽率和发芽势;不同浓度的Na2SO4(0.01、0.02、0.03、0.04和0.05mol/L)对酸枣的根长和根粗无显著影响;0.05mol/L的Na2SO4抑制酸枣侧根的形成,4种外源物质(亚精鞍、谷胱甘肽、氯化钙、硝酸钾)也抑制酸枣种子的侧根形成。In order to find out physiological mechanism of salt tolerance in sour jujube,the effect of different concentrations of Na2SO4 on seed germination and root growth was investigated.Moreover,the effect of different substances（GSH,Spd,KNO3,CaCl2）on 0.02 mol/L Na2SO4 treatment of sour jujube seed germination and root growth were also described.The results showed that：compared with the control group,high concentration（0.03,0.04 and 0.05 mol/L）of Na2SO4 inhibited the germination rate and germination potential of sour jujube significantly.There were not significant changes in root length and width after Na2SO4 treatment.Na2SO4 stress（0.05mol/L）showed reduced number of lateral roots.Different exogenous substances（GSH,Spd,KNO3 and CaCl2）also induced reduction in lateral roots formation of sour jujube.

关 键 词：酸枣 NA2SO4 种子萌发 根系生长 

分 类 号：S665.1[农业科学—果树学]