Zn、Pb和Cd对小麦幼苗生理生化的影响  

Effect of the Toxicity of Zn,Pb and Cd on Wheat Seedling Growth

作　　者：马海涛[1] 李晓晨[1] 郭志勇[1] 冯士龙[1] 王超[1] 

机构地区：[1]河海大学环境科学与工程学院,江苏南京210098

出　　处：《安徽农业科学》2007年第3期647-648,共2页Journal of Anhui Agricultural Sciences

基　　金：国家"973"计划资助项目(2002CB412303);江苏省自然科学基金资助项目(BK2004115)

摘　　要：采用室内水培实验研究了Zn、Pb和Cd 3种金属对小麦籽粒发芽及其幼苗生长的毒害效应。结果表明,3种金属对小麦籽粒发芽率和幼苗的株高、鲜重和膜抗损伤能力等均具有显著性负面影响;3种金属对小麦叶绿素有着不同的影响;Zn可导致小麦叶片可溶性糖含量降低,而Pb和Cd可以增加其含量。The effect of the toxicity of these heavy metals on some physiological characters of wheat seedling was studied, The results showed that the germination percentage, fresh weight, height of plant and anti-damage ability of cellular membrane were significantly influenced negatively by these heavy metals, the contents of chlorophyll in leaf of wheat seedling differed with the different heavy metals and their different treated concentrations, The content of soluble sugar in wheat leaf was decreased with the increasing of concentration of Zn, and increased with the increasing of concentration of Pb and Cd.

关 键 词：重金属 毒性效应 小麦幼苗 生理指标 

分 类 号：S512.1[农业科学—作物学]