| 干旱胁迫对伊犁绢蒿生理生化指标的影响 |
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| 引用本文： | 李莉,董志国,贾纳提,刘梦.干旱胁迫对伊犁绢蒿生理生化指标的影响[J].草原与草坪,2014(6):82-85. |
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| 作者姓名： | 李莉 董志国 贾纳提 刘梦 |
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| 作者单位： | 新疆畜牧科学院草业研究所,新疆 乌鲁木齐,830000 |
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| 基金项目： | 自治区科技基础条件平台建设项目“新疆旱生牧草生物技术育种实验室建设”(PT1303)资助。 |
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| 摘 要： | 以伊犁绢蒿为材料,采用盆栽育苗,齐苗后每盆保留幼苗4株,待幼苗长至6叶期时,进行干旱胁迫处理,连续干旱18d,分别于第0、6、12和18d及复水后第6d对其抗旱性部分生理生化指标进行研究,结果表明：随着胁迫强度的增加,叶片相对电导率,脯氨酸含量和丙二醛含量显著升高,光合作用显著下降,在第18d,叶绿素含量最小,其余各指标均达最大。伊犁绢蒿抗旱能力较强,适宜在干旱半干旱地区种植。
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| 关 键 词： | 干旱 生理生化指标 伊犁绢蒿 |
Physiological and biochemical response of Seriphidium transiliense on drought resistance |
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| LI Li,DONG Zhi-guo,JIA Na-ti,LIU Meng.Physiological and biochemical response of Seriphidium transiliense on drought resistance[J].Grassland and Turf,2014(6):82-85. |
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| Authors: | LI Li DONG Zhi-guo JIA Na-ti LIU Meng |
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| Institution: | (Grassland Research Institute, Xinjiang Academy of Animal Sciences ,Urumqi 830000, China) |
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| Abstract: | Taking Seriphidium transiliense as the sample, the paper studied the drought resistance of the plant when it growen at six leaf stage. The treatment of drought resitance was continue 18 days. The samples were took on day 0,6,12,18 as well as day 6 after rewatering to test some physiological and biochemical indices.The resultes showed that,with increasing of drought stress,the relative conductivity,proline content and MDA content in leaf significantly increased, but,the photosynthesis decreased significantly. On day 18, the content of chloroplastid was lowest while other indicx were highest. Seriphidium transiliense displayed superior characteristics under drought stress which was suitable for growing in dry and semidry regions. |
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| Keywords: | drought resistance physiological and biochemical index Seriphidium transiliense |
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