Influence of Soil Copper Pollution and Fusarium culmorum on the Heavy Metal Content in Wheat

1Plant Protection Institute, BG - 2230 Kostinbrod, Bulgaria
2Central Laboratory for Chemical Testing and Control, BG -1330 Sofia, Bulgaria


BOGOEVA, I., E. BONCHEVA, R. STEFANOVA and B. BLAJEV, 2007. Influence of soil copper pollution and Fusarium culmorum on the heavy metal content in wheat. Bulg. J. Agric. Sci., 13: 333-339

A greenhouse experiment in pots was carried out in order to assess the effect of combination of stress factors – copper pollution and Fusarium culmorum pathogen on the bioavailability of heavy metals in contaminated soils and their uptake from agricultural plants. Cu ions were introduced into the soil as a solution of CuCl2.2H2O in three concentrations: 150, 400 and 600 The soil was artificially inoculated with Fusarium culmorum pathogen. Wheat (Triticum aestivum) plants were grown at the phenophase “5-6 leaf”. Soil samples were analyzed for determination the content of elements: Pb, Fe, Zn, Cu, Cd, Mn. An ICP technique was used for determination of total and mobile forms of heavy metals in the soil, before planting the seeds. Concentration of the same elements was measured also in the stems and roots of investigated plants, after the harvesting.
A higher concentration of all determined elements was established in the roots of wheat, compared to those, in the stems. A substantial change of the heavy metal content in the infected and uninfected with F. culmorum plants was not determined.

Key words: Copper pollution, heavy metals, total and mobile forms of elements, pathogens, Fusarium culmorum, wheat

See the article as a PDF