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应用生态学报 ›› 1994, Vol. 5 ›› Issue (2): 192-196.

• 研究论文 • 上一篇    下一篇

农作物Cd耐性的种内和种间差异Ⅰ.种间差

杨居荣1, 贺建群1, 黄翌1, 蒋婉茹2   

  1. 1. 北京师范大学环境科学研究所, 北京 100875;
    2. 中国农业科学院作物育种栽培研究所北京 100081
  • 收稿日期:1993-03-17 修回日期:1993-09-28 出版日期:1994-04-25 发布日期:1994-04-25
  • 基金资助:

    国家自然科学基金

Inter-and intraspeific differences of crops in cadmium toleranceⅠ.Interspecific difference

Yang Jurong1, He Jianqun1, Huang Yi1, Jiang Wanru2   

  1. 1. Institute of Environmental Sciences, Beijing Normal University, Beijing 100875;
    2. Institute of Crop Breeding and Cultivation, CAAS, Beijing 100081
  • Received:1993-03-17 Revised:1993-09-28 Online:1994-04-25 Published:1994-04-25

摘要: 对8个科14个种作物的栽培试验表明,作物对Cd的耐性具有明显的种间差异,禾本科作物的耐性普遍高于蔬菜类;作物的耐性与体内Cd的平均吸收量无显着相关,而与地上部吸收量所占比例呈显着负相关;Cd影响下,耐性不同作物体内的一些生理代谢变化有一定差别。

关键词: 农作物, 重金属, Cd耐性, 污水, 复合胁迫, 代谢物, 镉, 玉米幼苗

Abstract: 14 species of crops in 8 families were found having a significant interspecific difference in Cd tolerance. Gramineous crops have a higher tolerance than vegetables.The tolerance is less related to the Cd content of crops,but negatively related to its proportion accumulated in their aboveground parts. After treated with Cd,crops with different strength of cadmium tolerance changed some of their physiological metabolisms in different ways.

Key words: Crop, Heavy metal, Cadmium tolerance, sewage, metabolite, maize seedling, cadmium, combined stress