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《Grassland and Turf》 2014-05
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Effect of drought stress on physiological characteristics of Elymus nutans in seedling stage

ZHANG Xiao-jiao;QI Juan;CAO Wen-xia;XU Chang-lin;College of Grassland Science,Gansu Agricultural University/Key Laboratory of Grassland Ecosystem of Education Ministry/Pratacultural Engineering Laboratory of Gansu Province/Pratacultural Engineering Laboratory of Gansu Province/Sino-US Centers for Grazingland Ecosystem Sustainability;  
The seedlings of 3 germplasms of wild Elymusnutansfrom different altitudes were treated with drought stress,and the contents of water,proline,MDA,chlorophyll and soluble sugar in leaf were measured.The results showed that with the increase of drought stress,the contents of relative water and chlorophyll in leaf were significantly decreased(P0.05),and the contents of proline,MDA,chiorophyll and soluble sugar were significantly increased(P0.05).Correlation analysis showed that there were highly significant correlations among above indicators.The drought resistance of 3 germplasms were comprehensively evaluated with subordinate function,and the drought resistance order was groupⅠgroup Ⅱgroup Ⅲ.
【Fund】: 现代牧草产业技术体系(CARS-35);; 草业生态系统教育部重点实验室(甘肃农业大学)开放课题基金(CYZS-2011004);; 甘肃省农牧厅退牧还草工程科技支撑项目(GNM-2012-252-2)资助
【CateGory Index】: S543.9
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