نوع مقاله : مقاله پژوهشی
1 دانشگاه زابل
2 گروه علوم مهندسی خاک دانشکده آب و خاک دانشگاه زابل
عنوان مقاله [English]
Heavy metal contaminated soils can be treated chemically, physically and biologically. The aim of this study was to investigate the possibility of phytoremediation of Morale in the presence of EDTA and PIAO Chelates. This experiment was carried out as a 4 × 3 × 2 factorial design with three replications in a CRD in the 2020 year as greenhouse at University of Zabol. Experimental treatments included chelates as the first factor 2 levels (EDTA and PIAO), the second factor as chelate concentration four levels (0, 0.5, 1, 1.5) and the third factor cadmium contaminant 3 levels (Zero, 15, 30) was prepared from cadmium nitrate source. The results showed that all qualitative traits (chlorophyll a, chlorophyll b, carotenoids) of the plant were affected by cadmium levels and chelates. treatments whose soil contained EDTA chelate showed a significantly higher yield increase than PIAO-containing samples with increasing chelating rate. Examination of cadmium level showed that the highest shoot cadmium and root cadmium and the lowest soil cadmium related to the treatment containing 1.5% EDTA chelate and soil with 30 mg/kg cadmium and the lowest amount in the control treatments, Therefore, it can be said that Morale plant in the presence of EDTA chelate and by increasing it from 0.5 to 1.5 mg/kg field soil has been able to perform well phytoremediation and reduce soil cadmium and its absorption by plant organs. Especially the roots and aerial parts of the plant.