广西师范大学学报（自然科学版）2012，Vol.30Issue(2)：127-131,5.
低分子有机酸对油菜吸收Cd和Zn的影响
Effect of Low Molecular Weight Organic Acids on Cd and Zn Absorption of Rape
摘要
Abstract
The effects of mixed low-molecular-weight-organic-acids (LMWOAs, acetic acid, formic acid, malic acid and citric acid) on the absorption of Cd and Zn of rape were studied in contaminated soil through pot experiments. The results showed that with the increasing amount of LMWOAs,the amounts of Cd and Zn in rape shoot exhibited complex changes. LMWOAs could increase the amounts of Cd and Zn in Bl and B2 fractions of rhizosphere soil (except Cd in Bl fractions),however,LMWOAs had little effect on Cd and Zn in nonrhizosphere soils. Under the stress condition of Cd or Zn,low concentration of LMWOAs could decrease the toxicity of Cd or Zn and increase the biomass of rape. However,high concentration of LMWOAs could increase the amount of Cd or Zn in Bl and B2 fractions of rhizosphere soil, increase the toxicity of Cd or Zn,so as to restrain the growth of rape.关键词
根际/低分子有机酸/重金属/Zn/CdKey words
rhizosphere /low-molecular-weight-organic-acids/heavy metal/Zn/Cd分类
农业科技引用本文复制引用
唐宇庭,黄佳玉,王维生,张超兰..低分子有机酸对油菜吸收Cd和Zn的影响[J].广西师范大学学报（自然科学版）,2012,30(2):127-131,5.基金项目
国家自然科学基金资助项目(41061045) （41061045）
广西自然科学基金资助项目(桂科自0991032) （桂科自0991032）
