Heavy Metal uptake and Distribution in Leaves of Grapevine Cultivars Bolgar and Mavrud, Grown in an Industrially Polluted Region. Part Ⅲ.

摘要

During the four stages of grapevine development ("bloom", "pea-grain-size of berries", "veraison" and "technological maturity of grapes") leaves were collected from grapevine cvs Bolgar and Mavrud, grown in an industrially polluted region and a region with no industrial pollution, from the zone of the 4th-6th nodes (opposite the cluster) and the heavy metal content was determined therein. Samples were digested by microwaves. During the growing period a clear tendency of increasing heavy metal contents (Pb, Zn and Cd) in the leaves was observed.