K. Velichkova, D. Pavlov, D. Ninova

Abstract. Two varieties of wheat were grown on different soil types (chernozem carbonate and humus-carbonate). The influence of experimentally polluted water was investigated on the stomatal characteristics on the leaves of the two varieties, and copper, ammonium and magnesium sulfate had inhibitory effect. Wheat variety “Yantar” had greater dimensions of the stomata, than variety “Sadovo” in the same soil. Variety “Sadovo” grown on carbonate chernozem had larger stomata compared to the same in humus-carbonate soil