| 干旱胁迫下外源钙对苜蓿抗旱相关生理指标的影响 |
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| 引用本文： | 姜义宝,崔国文,李红.干旱胁迫下外源钙对苜蓿抗旱相关生理指标的影响[J].草业学报,2005,14(5):32-36. |
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| 作者姓名： | 姜义宝 崔国文 李红 |
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| 作者单位： | 河南农业大学牧医工程学院,河南,郑州,450002;东北农业大学动物科学技术学院,黑龙江,哈尔滨,150030;黑龙江畜牧研究所,黑龙江,齐齐哈尔161041 |
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| 摘 要： | 用10 mmol/L CaCl2对苜蓿浸种,进行不同土壤含水量条件的干旱胁迫,结果表明,外源钙提高了苜蓿叶片POD酶活性、叶绿素含量和相对含水量,减轻了膜透性及对叶绿体结构的伤害,提高了苜蓿的抗旱性.
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| 关 键 词： | 苜蓿 钙 干旱胁迫 |
| 文章编号： | 1004-5759（2005）05-0032-05 |
| 收稿时间： | 2004-06-24 |
| 修稿时间： | 2004年6月24日 |
Effect of coating Medicago sativa seeds in calcium on drought resistance and interrelated physiological indexes under drought conditions |
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| JIANG Yi-bao,CUI Guo-wen,LI Hong.Effect of coating Medicago sativa seeds in calcium on drought resistance and interrelated physiological indexes under drought conditions[J].Acta Prataculturae Sinica,2005,14(5):32-36. |
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| Authors: | JIANG Yi-bao CUI Guo-wen LI Hong |
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| Abstract: | This experiment investigated what affect the coating of Medicago sativa seeds in calcium had on drought stress resistance. Calcium coating of seeds was done by immersing M. sativa seeds in a 10 mmol/L CaCl2 solution,followed by growing the seeds under conditions differing in water availability. Results showed that the addition of calcium could increase POD enzyme activity,chlorophyll content and the relative leaf water content,and that it alleviated membrane penetration and the damage that drought stress can cause to chloroplast. These results indicated coating M. sativa seeds in calcium may improve the plants drought resistance. |
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| Keywords: | Medicago sativa calcium drought stress |
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