Selection of rice cultivars having low-grain cadmium in cadmium-polluted paddy fields in Thailand

泰国镉污染稻田低粒镉水稻品种选育

基本信息

批准号：
23405021
负责人：
MATOH TORU
金额：
$ 9.4万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2011
资助国家：
日本
起止时间：
2011-04-01 至 2014-03-31
项目状态：
已结题

项目摘要

Home-consumed rice grains were collected from all 23 households in the village of Pha Te, Mae Sot District of Tak Province, Thailand. This area has been polluted with Cd from a zinc mine. The Cd concentration in unhusked rice (Oryza sativa L.) grains ranged from 0.04 to 1.75mg Cd kg-1, and the rice of more than half of the households contained Cd levels higher than the critical level of 0.4 mg Cd kg-1 polished rice, which is the CODEX standard. To reduce the health risk of the villagers, we started to select rice cultivars having lower grain Cd than that of a prevailing cultivar Khao Dawk Mali (KDM) 105. Among 42 cultivars of Thai rice (Oryza sativa L.), lower levels of Cd accumulated in the grains of RD5, RD15, and Sang Yod than KDM105. The findings suggest that human cadmium intake can be reduced by selecting low-Cd rice cultivars, and the promising result was announced to the villagers at May 2013 through a local NGO group.

家庭消费的米粒是从泰国达府湄索区 Pha Te 村的所有 23 户家庭收集的。该地区已被锌矿中的镉污染。粳米中镉含量为0.04～1.75mg Cd kg-1，超过半数农户的稻米镉含量高于0.4 mg Cd kg-1的临界水平大米，这是 CODEX 标准。为了降低村民的健康风险，我们开始选择籽粒镉含量低于主流品种 Khao Dawk Mali (KDM) 105 的水稻品种。在 42 个泰国水稻品种 (Oryza sativa L.) 中，镉含量较低RD5、RD15、Sang Yod 籽粒中的积累量高于 KDM105。研究结果表明，通过选择低镉水稻品种可以减少人体镉的摄入量，并于 2013 年 5 月通过当地非政府组织向村民宣布了这一可喜的结果。

项目成果

期刊论文数量（0）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Cadmium levels in the grains of rice and soybean under Cd contaminated field in Mae Sot District

美索县镉污染田地稻米和大豆中镉含量

DOI：
发表时间：
2010
期刊：
影响因子：
0
作者：
Anongnat Sriprachote;Pornthiwa Kanyawongha;Kumiko Ochiai;Toru Matoh
通讯作者：
Toru Matoh

Evaluation of Thai rice cultivars with low-grain cadmium

泰国低粒镉水稻品种评价

DOI：
10.1080/00380768.2012.715070
发表时间：
2012
期刊：
Soil Science and Plant Nutrition
影响因子：
2
作者：
Anongnat Sriprachote;Pornthiwa Kanyawongha;Grienggrai Pantuwan;Kumiko Ochiai;Toru Matoh
通讯作者：
Toru Matoh

Influence of soil properties and cadmium concentration on cadmium ammumulation level in rice grains

土壤性质和镉浓度对稻米镉积累水平的影响