华北农学报Issue(1)：129-134,6.
拔节期水分胁迫对冬小麦生理特性的影响
Changes of Physiological Parameters in Jointing Stage of Winter Wheat under Water Stress
摘要
Abstract
Water deficit is one of the major limitation for the production of winter wheat in arid region and sem-iarid region of China. Wheat in the jointing stage is very sensitive to the lack of water. Therefore,this experiment was conducted under two different water treatment( Normal and mid drought) with Xinong 979 and other 6 cultivars in pot. The superoxide dismutase ( SOD) activity,peroxidase ( POD) activity,catalase( CAT) activity,relative electric conductivity,MDA content,the soluble sugar content,the soluble protein content and the proline content were meas-ured as physiological indices for evaluating the drought resistance. The results showed that under drought stress,the activities of SOD,POD and CAT,relative electric conductivity,MDA content,the soluble sugar content and the pro-line content increased at different levels,and the soluble protein content of Jinmai 47,Xiaoyan 22,Aikang 58 and Xinong 979 also increased except for other 3 cultivars. Based on the principal component analysis,the ranking of the tested cultivars was as follows:Jinmai 47>Xiaoyan 22>Aikang 58 > Xinong 979>Xinong 509>Zhengmai 366>Zhengmai 9023 .关键词
水分胁迫/冬小麦/拔节期/生理特性Key words
Water stress/Winter wheat/Jointing stage/Physiological parameters分类
农业科技引用本文复制引用
张军,吴秀宁,鲁敏,麻珊珊,赵继新,陈新宏,武军..拔节期水分胁迫对冬小麦生理特性的影响[J].华北农学报,2014,(1):129-134,6.基金项目
陕西省自然科学基础研究计划重点项目(2013JZ007) （2013JZ007）
农业部“948”项目(2013-Z28) （2013-Z28）
西北农林科技大学唐仲英育种基金项目 （）
