文献类型：期刊文献

中文题名：大田生产条件下不同品种水稻植株中镉的分布特点

英文题名：The Cd Uptake and Distribution Features in Plant Organs of Four Rice Cultivars

作者：周鸿凯[1,2];何觉民[1];陈小丽[1];莫俊杰[1];黎华寿[2]

机构：[1]广东海洋大学农学院,广东湛江524088;[2]华南农业大学热带亚热带生态研究所,广州510642

年份：2010

卷号：29

期号：2

起止页码：229

中文期刊名：农业环境科学学报

外文期刊名：Journal of Agro-Environment Science

收录：CSTPCD、、Scopus、CSCD2011_2012、北大核心2008、北大核心、CSCD

基金：国家重点基础研究"973计划"项目(2006CB1000206);国家自然科学基金资助项目(30870413;40871156);广东省农业科技攻关项目(2009B020302005)

语种：中文

中文关键词：大田生产;水稻;镉;分布特点

外文关键词：field; rice; Cd; distribution feature

中文摘要：通过4个水稻品种在大田生产条件下的试验,研究分析了水稻植株Cd积累和分布的特点。结果表明,水稻的根系是吸收Cd的主要器官,也是Cd的主要储存场所,无论在水稻分蘖期还是成熟期都很明显;在水稻成熟期,籽粒(糙米)中Cd的含量显著地低于其他器官,水稻植株器官中Cd的分布情况大致为:根>鞘>叶>茎>糙米,但随着品种的不同而有所变化;根据4个水稻品种在成熟期的植株Cd积累量的分析,9311是植株高累积Cd的水稻品种,Jia-48和Jia-51的糙米中Cd的积累很低;水稻品种间对于Cd的吸收和累积能力有显著的差异,但水稻类型间(粳稻与籼稻间)Cd含量没有显著差异,因此不能按照水稻类型来选育糙米中低Cd积累品种,应针对品种选育出糙米中低Cd积累的高产优质水稻品种。

外文摘要：Field experiment was conducted to investigate the features of cadmium （Cd） accumulation and distribution of rice plant organs in four rice varieties. The results showed that the rice root was the main plant organ to uptake Cd, it also was the main storage site of Cd.The Cd content of grain （brown rice ） was significantly lower than in other organs at maturity stage.The concentration order of heavy metal Cd in different plant organs was root〉 sheath 〉 leaf 〉 stem 〉grain, but the order changed with the different varieties. Based on the results which Cd accumulation of four rice varieties was analysed in mature stage, 9311 was the variety of high accumulation Cd, the Cd content of brown rice was very low in Jia-48 and Jia-51.The ability to Cd uptake and accumulation was significantly different in rice varieties, but the inter-type rice（japonica and indica rooms） was not significantly different.