The accumulation of arsenic acid and cadmium in plants and their distribution
1998
Tlustos, P. | Pavlikova, D. | Balik, J. | Szakova, J. | Hanc, A. | Balikova, M. (Ceska Zemedelska Univ., Prague-Suchdol (Czech Republic))
Five plant species were planted in a three-year pot experiment on three different soils differing in soil properties and total content of As and Cd. Biomass of oat, leaves and roots of spinach, radish, carrot and plants, pods and seeds of green beans were analysed for total content of As and Cd and total mean uptake of each crop. Transfer factor of individual parts of plant was calculated for both elements. Results of experiments showed the yield was affected by soil fertility not by different As and Cd soil contents. Wide range of Cd content in soil affected significantly Cd concentration in all plant species. The highest difference was found in the species with highest Cd concentration (leaves and roots of spinach and leaves of radish) and the lowest in pods and seeds of beans. The mean accumulation of Cd was higher in leaves than in roots. The highest concentration of Cd was determined in leaves and roots of spinach and in leaves of radish at greyzems. The lowest Cd concentration in the same soil was found in green beans. The Cd concentration in plants decreased in the order greyzemsfluvisolsluvisols. Cd uptake was affected by plant concentration and the yield of dry matter. As was accumulated in the order luvisolsfluvisolsgreyzems. The highest As uptake was observed by oat on all three soils due to high biomass yield. There was not a significant difference in As uptake between the other four species. Leaves were the dominant part in Cd uptake, but As was taken more by roots.
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