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| 干旱胁迫下胶质苜蓿苗期生理生化特性的研究 | |
| 引用本文： | 王艳慧,王赞,孙桂枝,李源,高洪文,王雪征.干旱胁迫下胶质苜蓿苗期生理生化特性的研究[J].华北农学报,2008,23(Z2). |
| 作者姓名： | 王艳慧 王赞 孙桂枝 李源 高洪文 王雪征 |
| 作者单位： | 1. 中国农业科学院,北京畜牧兽医研究所,北京,100193;兰州大学,草地农业科技学院,甘肃,兰州,730020 2. 中国农业科学院,北京畜牧兽医研究所,北京,100193 3. 河北省农林科学院,旱作农业研究所,河北,衡水,053000 |
| 基金项目： | “十一五”科技支撑计划(2008BADB3B01;2007BAD56B02); 基本科研业务费(ywf-td-3)资助 |
| 摘 要： | 研究了水分胁迫下抗旱性不同的胶质苜蓿苗期生理生化特征的变化及其相互关系。结果表明:随着干旱胁迫的加重,叶片的相对电导率、丙二醛含量(MDA)、水分饱和亏缺(WSD)、脯氨酸含量(Pro)、可溶性糖含量(WSS)均有明显增加,其含量的变化与胶质苜蓿抗旱性密切相关,抗旱性强的材料Pro、WSS积累强度大于抗旱性弱的材料,电导率、MDA含量和WSD含量变化则是抗旱性弱的大于抗旱性强的材料;而相对含水量和叶水势均呈下降的趋势,抗旱性强的材料相对含水量下降幅度小于抗旱性弱的材料,叶水势变化趋势则与之相反。 |
| 关 键 词： | 胶质苜蓿 苗期 生理生化 抗旱性 |
Physiological and Biochemical Study on Medicago Glutinosa at Seedling Stage under Drought Stress |
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| WANG Yan-hui,WANG Zan,SUN Gui-zhi,LI Yuan,GAO Hong-wen,WANG Xue-zheng.Physiological and Biochemical Study on Medicago Glutinosa at Seedling Stage under Drought Stress[J].Acta Agriculturae Boreali-Sinica,2008,23(Z2). | |
| Authors: | WANG Yan-hui WANG Zan SUN Gui-zhi LI Yuan GAO Hong-wen WANG Xue-zheng |
| Abstract: | A study on the physiological-biochemical changes of different Medicago glutinosa materials under drought stress was carried out.The results showed that RWC,MDA,WSD,Pro and WSS were increased obviously with the increase of drought stress.Different accumulation contents were correlated with drought resistance ability of Medicago glutinosa,WSS and Pro of the variety with better drought resistance ability was more than that of the weaker ones,while relative electric conductivity,MDA,WSD of the variety with bett... |
| Keywords: | Medicago glutinosa Seedling Physiological and biochemical Drought resistance |
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