Heavy metal distribution in the roots and shoots of plants grown in control and
polluted plots. (A) The mean concentration (mg kg1) ± standard deviation of heavy
metals in the roots and shoots of 60 plants per plot. (B) The mean total content
(mg plant1) of metals in the roots and shoots as assessed on the basis of the
measured root and shoot dry weight and metal concentration. (C) The mean percentage
of metals translocated from roots to shoots. The percentage of translocation
was calculated by dividing the mean amount of metal found in shoot (mean mg in
shoot) by the mean total amount of metal absorbed (mean mg in shootþ mean mg in
root).