Cr、Pb单一及复合污染对小麦叶绿素含量的影响  

Impacts of single and compound pollutants of Chromium and Lead on the chlorophyll content of wheat seedlings

作　　者：丁艳[1] 杜庆才[1] 孙兰萍[1] 朱兰保[1] 李婷芸[1] 

机构地区：[1]蚌埠学院应用化学与环境工程系,安徽蚌埠233030

出　　处：《重庆文理学院学报（自然科学版）》2012年第6期49-52,共4页Journal of Chongqing University of Arts and Sciences

基　　金：安徽省高等学校自然科学研究项目（KJ2010B095）; 蚌埠学院自然科学重点项目（2010ZR02zd）; 江苏省作物栽培生理重点实验室开放课题（K09009）

摘　　要：通过水培试验研究Pb和Cr单一及复合污染对小麦叶绿素含量的影响。结果表明,与对照相比,单一污染物条件下,随着污染浓度的递增,叶绿素a、叶绿素b和总叶绿素含量的变化规律大体一致,均呈现先上升后下降的趋势;复合污染的叶绿素含量与浓度呈负相关;叶绿素a/b的变化与叶绿素总含量的减少并不完全同步;Pb和Cr单一及复合污染对小麦的毒害程度表现为：（Cr∩Pb）〉Cr〉Pb.The hydroponic method was used to study the impacts of single and compound pollutants of Chromium and Lead on the chlorophyll content of wheat seedlings.The results showed that,compared with the contrast,under the single pollutant,with the gradual increasing density of pollutant,similar changes happened in the chlorophyll a,chlorophyll b and the total chlorophyll content,that is,the trend increased and decreased then.However,the chlorophyll content of compound pollutants was in the negatively correlation with the density.And the reduction in total chlorophyll content was not fully synchronized with the change of chlorophyll a/b;the degree of poison on wheat was expressed as,（Cr∩Pb） Cr Pb.

关 键 词：小麦幼苗 复合污染 叶绿素 

分 类 号：S154.4[农业科学—土壤学]