REMEDIATION CAPACITY AND GROWTH RESPONSES OF Platanus orientalis L., Eucalyptus camaldulensis Dehn., and Populus nigra L. TO DIFFERENT LEVELS OF LEAD AND CHROMIUM IN CONTAMINATED SOIL

This study was conducted to evaluate the effect of contaminated soil with lead and chromium using three species trees Platanus orientalis, Eucalyptus camaldulensis, Populus nigra as a remediation tool which considers priority restoring method keep healthy support life system for all organisms. The experiment concentrations Pb (200,400, 600 mg.kg-1) levels Cr (100, 200, 300 along control. results reveals that root dry weight orientale plane poplar tree were reduced meanwhile, eucalyptus showed significant increase at 200 400 mg.kg-1 lead. Shoot revealed stimulatory (187.26, 193.5 g) respectively. Chlorophyl content decreased significantly linearly increasing concentration Cr. At same time, proline highest values ((76.53, 35.325, 45.020 µmoles. g-1) in oriental plane, eucalyptus, Generally, accumulates more than leaves bioaccumulation factor < 1 similarly translocation except (1.135, 1.013, 1.018) control, respectively well their root. In conclusion differ responses