الفهرس 
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Abstract
This study was carried out at the Nursery of Timber trees Research Dept. of Sabahia, Hort. Res. Station at Alex. Egypt during the period of 22nd April 2010 to 1st Nov. 2012 to investigate the effect of Cd and Pb on the growth and chemical composition of Populous alba, L. and Melia azedarach, L. transplants and soil properties after the plantation to use them as phytoremediators of contaminated soil. The used treatments were control, Cd at rates of 10, 20 and 40 mg/kg soil and Pb at rates of 200, 400 and 800 mg/kg soil. The results can be summarized as follows:
- All used Cd and Pb levels decreased the vegetative growth parameters of Populous alba and Melia azedarach in the two study periods in comparison to the control.
- Cd and Pb treatments decreased the green colour degree, N, P and K% in the different plant parts of the two tree species in comparison of the control, except for P and K% in some cases in stem and roots of Melia azedarach. Also, with increasing Cd and Pb in the soil, their contents in the plant parts increased.
- All the used treatments decreased soil pH, E.C, CaCO3%, O.M%, cations, anions and available N P K, as well as, soil Cd and Pb decreased after white poplar and Melia azedarach were planted.Therefore, Populous alba and Melia azedarach can be used as phytoremediator of Cd and Pb contaminated soil.