Effect of citric acid and EDTA on chromium and nickel uptake and translocation by Datura innoxia

摘要: Abstract EDTA and citric acid were tested to solubilize metals enhance their uptake by Datura innoxia, chosen because of its ability accumulate tolerate metals. Two application modes used on an industrial soil contaminated mainly Cr Ni. The results showed that was the most effective at increasing for These are consistent with effectiveness both chelants in solubilizing from soil. translocation factor (TF) Ni 1.6- 6.7-fold higher than control, respectively, one two applications 1 mmol kg−1 EDTA. After 5 10 mmol kg−1 acid, TF increased 2- 3.5-fold relative control. Whatever concentration, modified plant physiology significantly. For this only observed highest dose (10 mmol kg−1).