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中国沙漠 ›› 2007, Vol. 27 ›› Issue (2): 244-249.

• 生物土壤与生态 • 上一篇    下一篇

电场处理对毛乌素沙地油蒿抗寒性影响的研究

那 日1, 冯 璐2, 杨 生3, 黄洪云1   

  1. 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
  • 收稿日期:2005-09-13 修回日期:2005-11-15 出版日期:2007-03-20 发布日期:2007-03-20

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

NA Ri1, FENG Lu2, YANG Sheng3, HUANG Hong-yun1   

  1. 1.Physics Department of Science and Technology College, Neimongol University, Hohhot 010021, China; 2.Applied Physics Department of Science College, Beijing University of Science and Technology, Beijing 100081; 3.Grassland Research Institute of Chinese Academy of Agricultural Sciences, Hohhot 010010, China
  • Received:2005-09-13 Revised:2005-11-15 Online:2007-03-20 Published:2007-03-20

摘要: 不同强度的电场处理沙生植物油蒿(Artemisia ordosica Krash)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2.0 kV.cm-1、3.5 kV.cm-1和4.5 kV.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。

关键词: 油蒿, 电场处理, 碳水化合物, 渗透调节物, 抗寒性

Abstract: 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.

Key words: Artemisia ordosica Krash, electric field treatment, carbohydrate contents, osmoregulation substance, cold resistance

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