4种玉米对镉的弱吸收特性研究  

Study on Cadmium Absorption by Four Kinds of Zea mays

作　　者：刘锐龙[1] 刘翔[1] 马伟芳[1,2] 李强[1] 

机构地区：[1]清华大学环境学院,北京100084 [2]北京林业大学环境科学与工程学院,北京100084

出　　处：《安徽农学通报》2012年第7期35-39,共5页Anhui Agricultural Science Bulletin

基　　金：北京市科技计划项目(D101105046410003)

摘　　要：通过田间试验,研究了北京市房山区广泛种植的4种玉米对镉的吸收能力,结果表明,土壤中镉的浓度为0.271～0.337mg/kg时,受试的4种玉米对镉的吸收能力在整个生长期保持稳定,对镉的吸收能力大小依次为京玉11号<京单68<京科糯2000<京单28,京玉11号对镉的弱吸收特性最明显;玉米对镉的吸收能力与籽实生物量和玉米总生物量之间没有显著相关性。In the field experiment,Cadmium absorption by four kinds of Zea mays widely grown in Fang Shan District,Beijing City,is studied.The result indicates that the studied maize show different but stable Cadmium absorption capability with Jing Yu 11Jing Dan 68Jing Ke Nuo 2000Jing Dan 28 when Cd concentration ranges from 0.271mg/kg to 0.337mg/kg,therefor Jing Yu11 shows the most obvious weakness on Cadmium absorption;there is no apparent correlation between Cadmium absorption and total biomass or corn biomass.

关 键 词：玉米 镉 弱吸收 

分 类 号：S513[农业科学—作物学]