Metal and phosphorus concentration in poplar leaves.

Data are mean and standard error of Cu, Zn and P concentration (mg/Kg d. wt) in leaves of P. alba plants at first (S1), second (S2) and third (S3) sampling. C – un-inoculated plants grown on a control soil; Gi – plants inoculated with G. intraradices, grown on control soil; Poll – plants grown on polluted soil; GiPoll – plants grown on polluted soil and inoculated with G. intraradices. Different letters in each column represented significant differences (p