期刊论文

Study on Response Characteristics of Different Radishes Genotypes to Five Heavy Metals

中文

核农学报

1000-8551

2020

34

5

1119-1127

10.11869/j.issn.100-8551.2020.05.1119

蔬菜镉低积累品种筛选及其配套技术研究与示范 国家特色蔬菜产业体系种子种苗岗位(CARS-24-A-14) 食用作物安全性评价课题,湖南省农业科学院科技创新项目(2017JC24)。

本校为第一机构

为探究萝卜对土壤中镉( Cd) 、砷( As) 、铅( Pb) 、汞( Hg)和铬( Cr) 5种重金属的累积特性,采用温室盆栽试验,通过测定9个不同萝卜品种不同部位的重金属含量,结合重金属富集系数和转移系数以及单因子污染指数法、内梅罗综合污染指数法综合评价萝卜对上述5种重金属的响应规律。结果表明,萝卜地下部对5种重金属富集能力依次为Cd>Pb>Cr>Hg>As,并较易发生重金属的向上转移,地上部较地下部更易累积重金属;萝卜品种和重金属种类均可显著影响重金属累积,且二者交互作用明显。研究发现春不老是一种高产且重金属低累积的萝卜品种。本研究结果为萝卜安全生产及消费提供了指导。

To study the accumulation characteristics of radish to cadmium ( Cd) ,arsenic ( As) ,lead ( Pb) ,mercury ( Hg) and chromium ( Cr) in soil,pot experiments under greenhouse were conducted on nine different radishes genotypes in this paper. The accumulation characteristics were analyzed by combined the determination of heavy metal content in their different parts,biological concentration factor and transfer factor of heavy metals,and individual pollution index and nemero comprehensive pollution index. Results indicated that the accumulation abilities of five heavy metals of underground parts in r...