当前位置: 首页 > 文章 > NaCl胁迫对鹅观草苗期生理生化物质的影响 中国草地学报 2013,35 (5) 152-155
Position: Home > Articles > Effects of NaCl Stress on Physiological and Biochemical Substance of Three Species of Roegneria Chinese Journal of Grassland 2013,35 (5) 152-155

NaCl胁迫对鹅观草苗期生理生化物质的影响

作  者:
解继红;德英;穆怀彬;戴雅婷;陈景芋;镡建国;杨凯
单  位:
中国农业科学院草原研究所;新疆农业大学草业与环境科学学院;内蒙古草原工作站
关键词:
鹅观草属;NaCl胁迫;耐盐性;生理生化物质
摘  要:
以NaCl为胁迫因子,设置0mmol/L、30mmol/L、60mmol/L、90mmol/L、120mmol/L、150mmol/L、180mmol/L 7个盐浓度梯度,对鹅观草属大芒鹅观草、肃草、偏穗鹅观草三种植物进行耐盐试验,通过测定植株的生理生化指标,对供试材料进行耐盐性比较研究。试验结果表明,低盐浓度对它们的影响极小,与对照相比无明显差异,随着NaCl浓度的增高,鹅观草的叶绿素含量、电导率、脯氨酸含量随之增加,而SOD值、POD值出现先升高后下降的曲线。综合分析表明:偏穗鹅观草耐盐性最强,大芒鹅观草耐盐性最弱,肃草介于二者之间。
译  名:
Effects of NaCl Stress on Physiological and Biochemical Substance of Three Species of Roegneria
作  者:
XIE Ji-hong;DE Ying;MU Huai-bin;DAI Ya-ting;CHEN Jing-yu;TAN Jian-guo;YANG Kai;Grassland Research Institute,Chinese Academy of Agricultural Sciences;College of Pratacultural and Environmental Sciences,Xinjiang Agricultural University;Inner Mongolia Grassland Work Station;
关键词:
Roegneria caucasica;;NaCl stress;;Salt tolerance;;Physiological and biochemical substance
摘  要:
The salt tolerance of Roegneria,which were tested under 0,30,60,90,120,150,180mmol/L salt of NaCl concentration by measuring physiological and biochemical indexes.The experimental results showed that the effect of low salt(30mmol/L)on three species of Roegneria was little;the effect of high salt concentrations on three species of Roegneria was significant,leaf relative water content,chlorophyll decreased,RWC,proline increased,SOD and POD increased at beginning,then decreased.The result indicated that R.komarovii(Nevski)Nevski had the strongest salt-tolerance,and R.turczaninovii(Drob)Nevski var.macrathera Ohwi was the weakest,and R.stricta Keng f.stricta was in the middle.

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