电场处理对毛乌素沙地油蒿抗寒性影响的研究  

Study on Cold Resistance of Artemisia ordosica Krash under Electric Field Treatment in Mu Us Sand Land

作　　者：那日[1] 冯璐[2] 杨生[3] 黄洪云[1] 

机构地区：[1]内蒙古大学理工学院物理系,内蒙古呼和浩特010021 [2]北京理工大学理学院应用物理系,北京100081 [3]中国农业科学院草原研究所,内蒙古呼和浩特010010

出　　处：《中国沙漠》2007年第2期244-249,共6页Journal of Desert Research

基　　金：国家自然科学基金项目(50267001)资助

摘　　要：用不同强度的电场处理沙生植物油蒿(Artemisia ordosicaKrash)种子,在毛乌素沙地自然环境下研究电场作用后其根系碳水化合物,叶片水分和渗透调节物随气温下降的变化。结果表明:电场强度为2.0kV.cm-1、3.5kV.cm-1和4.5kV.cm-1时,地温降到零下摄氏度时,其根系碳水化合物和可溶性蛋白质含量增加;气温降到零下10℃左右时,叶片相对含水量、自由水和淀粉含量下降,束缚水、可溶性糖、可溶性蛋白质和脯氨酸含量增加。The Artemisia ordosica Krash seeds were treaded with different electric intensity. In the natural habitat of Mu Us Sand Land, the root carbohydrate content, the leaf water content and the osmoregulation substances in Artemisia ordosica were tested along with air temperature decreasing. The results showed that, when the soil temperature fell below zero centigrade the carbohydrate content and soluble protein in roots increased after 2.0 kV·cm^-1, 3.5 kV·cm^-1 and 4.5 kV·cm^-1 electric intensity treatments to seeds, respectively; when the soil temperature at about 10 degrees below zero centigrade, the relative water content, the free water content and the starch content of A. ordosica leaves decreased, while the contents of bund water, soluble sugar, soluble protein and proline increased.

关 键 词：油蒿 电场处理 碳水化合物 渗透调节物 抗寒性 

分 类 号：Q945.7[生物学—植物学]