Анотация: A comparative study on the effects of excess Zn and high Cd concentrations on selected macro- (N, P, K) and micronutrients (Cu, Mn, Fe) content in durum wheat plants was conducted in hydroponic experiments. Cd and Zn were added to the nutrient solution at concentrations of 50 and 600 мM, respectively, when plants were 8-day-old and maitained for the next 10 days. These concentrations were chosen in a preliminary study where these metals were found to produce a similar relative growth rate (RGR) inhibition of about 50 percentage. The resuls revealed that the applied Zn and Cd concentrations slightly modulated the content of selected mineral nutrients with 2 exceptions: (1) Cd treatment decreased K content in roots and (2) Zn treatment diminished Mn content in roots, whereas Zn and Cd reduced Mn translocation to leaves. In conclusion, these results did not give evidence for specific effects of Cd and Zn treatment on the mineral nutrients content

Забележки: Proceedings of the XI National Conference on Plant Physiology, 18-19 november 2009, Sofia, Bulgaria