Phytoextraction potential of Cynara cardunculus L. grown under single and binary cadmium and nickel treatment conditions

A greenhouse experiment was carried out using three groups of 12 pots each, filled with surface soil spiked by single and binary cadmium and nickel aqueous solutions. Measured bioavailable metal concentrations in soil ranged widely and were up to 246.7 mg kg-1 for Cd and 61.1 mg kg-1 for Ni.

Under CdTREATMENT cardoon growth remained unaffected, while elevated Ni soil concentrations led to severe reduction of plant growth. In Cd-NiTREATMENT an antagonistic effect was observed among the two metals. The amounts of Cd and Ni accumulated in cardoon plants were elevated and increased with increasing metal concentrations in the soil; higher concentrations of both metals were observed in the above-ground biomass and the Translocation Factor was higher than 1. A possible enhancing effect of nickel on cadmium uptake was observed. Cardoon showed to have characteristics only of a Cd accumulator, but further investigation under field conditions is needed.

Copyright: © Aristotle University of Thessaloniki
Quelle: 2nd International Conference 2009 (Juni 2009)
Seiten: 6
Preis inkl. MwSt.: € 5,00
Autor: E.G. Papazoglou
George K. Papadopoulos

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