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《Acta Agriculturae Universitatis Jiangxiensis》 2016-06
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Differences in the Uptake and Accumulation of Cr,As,Zn,Pb and Cu from Soil Among Six Rice Cultivars

WANG Xiao-ling;LIU Teng-yun;XING Xue-jun;GAO Zhu;LI Qian;YU Fa-xin;Institute of Biological Resources,Jiangxi Academy of Sciences;Jiangxi Key Laboratory of Poyang Lake;Institute of Enviromental Engineering,Ningxia University;  
A series of pot cultivation experiments were carried out by ICP-MS,ICP-OES and atomic fluorescence spectrometry,to study the differences among six rice cultivars in accumulation of heavy metals( Cr,As,Zn,Pb,Cu) among six rice cultivars,for screening out rice cultivars with lower accumulation or higher enrichment of heavy metals.The results showed that the falling sequence of their ability in the uptake and accumulation of 5 heavy metals was ZnPbCrCuAs; the contents of heavy metals in the root of rice were 1.23 ~43.76 times more than those in stem and leaves; Zhuliangyou-173,Zhongzao-35,Longping-006,Luliangyou-996 had respectively the minimum transference coefficient of Cr,As,Zn,Cu,thus they were their low-accumulation cultivars suitable for further study; Jinyou-463,Y Liangyou-85,Luliangyou-996 had respectively strongest enrichment ability of Cr,As,Zn,Cu,thus they were their high-enrichment cultivars suitable to take further study; Longping-006 had the maximum enrichment coefficient of Pb,both in roots and stems / leaves,but the minimum transference coefficient.Therefore,it was suitable for further research to determine whether it's a lowaccumulation cultivar of Pb or a high-enrichment cultivar.The falling sequence of rice plant growth was Zhongzao-35Luliangyou-996Zhuliangyou-173 Longping-006 Jinyou-463 Y Liangyou-85. As and Cu contents of the stem and leaves were the main factors to affect their plant growth.The results of this study will provide references for further study on genetic mechanism differences of low-accumulation rice cultivars and their practical field application and plant security in Jiangxi Province.
【Fund】: 江西省青年科学基金(20142BAB214007);; 江西省科学院协同创新专项(2013-XTPH1-05);江西省科学院“省部共建国家重点实验室培育基地”(赣科院字[2013]19号-04);江西省科学院省级重点实验室开放基金项目(2013-KLB-04)~~
【CateGory Index】: S511
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