Increased Zn in a soil with high Cu concentrations has no effect on the soil solution Cu dynamics or Cu
phytotoxicity potential in plants. Zn also proved potentially capable of causing phytotoxicity when present
at high concentrations in soils, as shown by the decrease in root and shoot growth as well as the changes in
chlorophyll a fluorescence and antioxidant system parameters, especially in plants grown in soils supplemented
with greater doses of Zn.