Metal Accumulation and Tolerance of Energy Willow to Copper and Nickel under Simulated Drought Conditions

The aim of this study was to determine the effect drought on accumulation and tolerance energy willow (Salix viminalis L. var. ‘Gigantea’) copper (Cu) nickel (Ni) in context phytoremediation potential plant biomass production under adverse water conditions. Drought simulated with polyethylene glycol (PEG-6000. 5%), metals were added at a concentration 1 mM. Plants cultivated greenhouse conditions for 21 days according experimental variants: control, Cu, Ni, PEG, PEG + Cu Ni. results indicate high toxicity (chlorosis, necrosis, decrease biomass, dehydration, increase content proline phenolic compounds), co-treatment increased metal. Ni applied same did not cause symptoms. exhibits ability accumulate mutual application uptake new shoots. caused elevated phenolics leaves accompanied decreased carbon nitrogen roots favor young Both led disruption mineral nutrients (Ca, Mg, Fe). Due drought, S. ‘Gigantea’ bears Ni-polluted sites accompanying metal deficit.