作　　者： ; ; ; ; ;

机构地区： 华南农业大学资源环境学院

出　　处： 《生态与农村环境学报》 2010年第4期367-371,共5页

摘　　要： 通过田间试验,研究了8个玉米品种对重金属Cd、Pb、Zn和Cu累积与转运的品种差异,以期筛选出适合广东地区冬季种植的低累积玉米品种。结果表明,8个玉米品种间籽粒和茎叶Cd、Pb、Zn和Cu含量存在显著差异。对玉米籽粒Cd、Pb、Zn和Cu含量进行聚类分析,可将8个玉米品种划分为3类:灵丹20、正丹958和高优1号属Cd、Pb、Zn和Cu较低累积类群,蠡玉6号、丰田1号、超甜38和华宝1号属Cd、Pb、Zn和Cu中等累积类群,粤糯1号属Cd、Pb、Zn和Cu高累积类群。根据玉米籽粒生物量、籽粒重金属含量以及重金属转运系数等指标进行评价,认为饲料玉米灵丹20和正丹958可作为广东地区冬季种植的低累积玉米品种。 A Field experiment was carried out to study differences between 8 corn（Zea mays） cultivars in accumulation and translocation of heavy metals,for screening out corn cultivars that are low in heavy metal accumulation and suitable to grow in winter in Guangdong Province.Results show that significant differences were found between the cultivars in heavy metal（Cd,Pb,Zn and Cu） concentrations in corn grain and stem and leaves.Cluster analysis of the heavy metal（Cd,Pb,Zn,Cu） concentrations in grain shows that the 8 cultivars could be sorted into three groups.Lingdan-20,Zhengdan958 and Gaoyou-1 were in the group of low-accumulation cultivars.Liyu-6,Fengtian-1,Chaotian-38 and Huabao-1 were in the group of midium-accumulation cultivars.And Yuenuo-1 was a high-accumulation cultivar.Considering furthermore the yield of grains and transference coefficient of heavy metals,Lingdan-20 and Zhengdan-958 were the low-heavy-metalaccumulation corn cultivars suitable to be planted during the winter season in Guangdong Province of China.

关 键 词： 低累积作物 重金属 转运系数 品种差异

领　　域： [环境科学与工程]