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The interaction between lead, copper, cadmium and zinc in their binary combinations was investigated in Indian mustard seedlings (Brassica juncea L. var. Malopolska). Fourteen-days-old seedlings were treated with Pb(NO3)2, CuSO4, CdCl2, ZnSO4 at 50μmol of metal ion concentration and at 25μmol of each metal ion in combinations. Metal combinations were generally more inhibiting in terms of biomass production...
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