Induced phytoextraction: effect of amendment on phytoextraction of cadmium by poplar rooted cuttings (Populus nigra L. and Populus alba L.) Online publication date: Tue, 13-May-2014
by Seyed Mahdi Alizadeh; Ghavamudin Zahedi-Amiri; Malek hossein Shahriari; Mostafa Shirmardi
International Journal of Environment and Waste Management (IJEWM), Vol. 13, No. 1, 2014
Abstract: To determine the effect of amendments on cadmium uptake by one-year old poplar rooted cuttings, a pot experiment was carried out. Pots were filled with three substrates mentioned below: 1) loam soil, cocopeat and perlit were mixed in 1:0.5:0.5 (v/v/v) ratio; 2) loam soil and cocopeat were mixed in 1:1 (v/v) ratio (P50%); 3) loam soil. Four treatments of Cd supply including 0 mg kg−1 (no external Cd), 50, 100 and 150 mg kg−1 (were spiked as CdCl2·2.5H2O) were organised. Results showed that higher biomass productions in substrates A and B compare to substrate C, led to an increase total Cd uptake two times more than that in substrate C, at 150 mg kg−1 concentration by Populus alba (p < 0.01). Meanwhile maximum uptake occurred in substrate A at 150 mg kg−1 concentration by Populus nigra (p < 0.01).
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