生态与农村环境学报2013，Vol.29Issue(3)：390-393,4.
不同生育期类型水稻对镉积累的研究
Cd Accumulation in Japonica Rice Relative to Growth Type
摘要
Abstract
The experiment was set to investigate accumulation of cadmium in 56 varieties of japonica rice of 5 different growth types growing in cadmium-polluted farmlands.The 5 growth types include early-maturity (125-135 d),mid-maturity (136-145 d) and late-maturity (146-155 d) mid-japonica rice and early-maturity (156-165 d) and mid-maturity (166-175 d) late-japonica rice.Results show that Cd concentration in grain of the 56 varieties of rice varied from variety to variety sharply in the range of 0.014-0.054 mg · kg-1 (P ＜ 0.05).For Cd concentration in grains among the 56 varieties,ELTO was the highest and Yangjing 687,Siyang 1382,Guanglingxiangjing and Wuxiangjing 9 were lower.For the 5 growth types,the type of early-maturity mid-japonica rice was higher and the type of mid-maturity mid-japonica rice was lower in Cd concentration,being 0.024 and 0.020 mg · kg-1,respectively.The difference between the types of japonica rice was not significant in Cd accumulation coefficient,but significant in Cd transfer coefficient.关键词
水稻/生育期类型/镉/富集系数/转运系数Key words
rice/growth type/cadmium/accumulation coefficient/transfer coefficient分类
资源环境引用本文复制引用
陈京都,何理,林忠成,戴其根,张军,郭保卫,许露生,张洪程..不同生育期类型水稻对镉积累的研究[J].生态与农村环境学报,2013,29(3):390-393,4.基金项目
"十二五"国家科技支撑计划(2011BAD16B03) （2011BAD16B03）
江苏省普通高校研究生科研创新计划(CXZZ11_0983) （CXZZ11_0983）
江苏省农产品质量安全产地适宜性评价项目 （）
江苏高校优势学科建设工程资助项目 （）
