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Characteristics of Cd Accumulation and Phytoremediation among Three Half-sib Families of Betula schmidtii  

Oh Chang Young (국립산림과학원 산림유전자원부)
Lee Jae Cheon (국립산림과학원 산림유전자원부)
Han Sim Hee (국립산림과학원 산림유전자원부)
Kim Pan Gi (서울대학교 기초과학연구원)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.6, no.3, 2004 , pp. 204-209 More about this Journal
Abstract
The main purpose of this study was to select a B. schmidtii population which has high cadmium tolerance and remediation and to determine the difference of cadmium uptake patterns among populations. One-year-old B. schmidtii seedlings were treated with 0, 0.4, 0.8mM CdSO$_4$. 3/8H$_2$O for two months. Cadmium concentrations in different positions of stem and cadmium concentrations and contents of leaves, stems and roots were analyzed. Also soil cadmium concentrations were analyzed. B. schmidtii was highest in root and lowest in shoot tip, showing a gradual decrease from root to shoot tip. The shoot to root Cd concentration ratios were over 1.26. It is concluded that B. schmidtii has good potential for phytoextraction as a shoot accumulator, which can be used for remediation of cadmium-contaminated areas. But tolerance differs between populations. Therefore B. schmidtii should be used as a means of phytoremediation after selection for Cd tolerance is performed.
Keywords
phytoremediation; phytoextraction; shoot accumulator; concentration factor;
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