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《Journal of Baoji University of Arts and Sciences(Natural Science Edition)》 2006-04
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Accumulation and distributing of copper in corn(Zeamays L.)

WANG Zheng-fan~1,CHEN Yang-min~1,DUAN Xin-chao~2(1.Dept.Chem.& Chem.Engn/,Weinan Teachers College,Weinan 714000,Shaanxi,China;2.School Chem.& Materials Sci.,Shaanxi Normal Univ.,Xi'an 710062,Shaanxi,China)  
Aim To investigate the transfer and cumulate conditions of copper in corn.Methods Self-planted corns were divided into contrastive area(CK) and polluted area(Ex).The polluted area was irrigated with simulative waste water,to collect different positions in different growing period as samples in polluted corn and contrastive corn respectively to analyze copper content.Results The results of experiments indicate the sequence of cumulate copper in corn: root(M=2.29)joint of stem(M=1.55)stem(M=1.18)corn grains(M=1.15)leaves(M=1.05),where M=m_(Cu(Ex))/m_(Cu(CK)).Conclusion The content of copper in corn grain is very little in the ripe corn growing the polluted area,is lower than the national standard and it is edible.Whereas the content of Cu is higher in the root than aerial parts.It is a good method for purifying the pollution of copper in the soil and wastewater contain Cu is used to irrigate corn.
【Fund】: 渭南师范学院重点资助项目(06YKF013)
【CateGory Index】: S513
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