期刊论文

Antagonistic effects of exogenous zinc on uptake and accumulation of cadmium in various rice organs

Liao, B.

中文

环境科学学报

0253-2468

2018

38

12

4854-4863

10.13671/j.hjkxxb.2018.0356

国家重点研发计划课题（No.2016YFD0800705）； 湖南省教育厅项目（No.15K148）~~；

本校为第一且通讯机构

为探明外源锌(Zn)对镉(Cd)污染稻田系统Cd吸收累积的影响,采用盆栽试验,向轻度(Cd含量为0.50 mg·kg~(-1))和中度(Cd含量为1.50 mg·kg~(-1)) Cd污染土壤中施用不同浓度的外源Zn,研究Zn对土壤、水稻根表铁膜和水稻各部位中Cd、Zn含量变化的影响,探讨外源Zn对Cd污染稻田系统Cd吸收累积的交互作用.结果表明,在2种Cd污染土壤中,施用外源Zn显著降低了湘晚籼12糙米Cd含量,降低幅度为13.4%~78.4%;在轻度Cd污染土壤中,施用外源Zn显著降低了威优46糙米Cd含量,降低幅度为14.7%~ 79.8%,而在中度Cd污染土壤中,当外源Zn浓度超过40 mg·kg~(-1)将增加威优46糙米Cd含量;在2种Cd污染土壤下均显著增加2种水稻根表...

Apot experiment was performed to verify the effects of exogenous zinc (Zn) on uptake and accumulation of cadmium (Cd) in various rice organs, to study the changes of contents of Cd and Zn in soils, iron plaque, and various rice organs due to exogenous Zn, and to explore the interaction of Zn and Cd in rice paddy systems. Two rice cultivars Xiangwanxian 12 and Weiyou 46 and two Cd-polluted soils with Cd contents of 0.50 mg•kg-1 and 1.50 mg•kg-1 were used for the pot experiment. The results showed that application of exogenous Zn significantly ...