EN
Titanium is an element which advantageously affect some species of cultivated plants, accelerating their growth and increasing yields. That particularly deals with the plants cultivated in horticulture. It was stated that the foliar fertilizer containing titanium ions, named Tytanit and manufactured by InterMagCo. in Olkusz, increased seed yield offemale cucumber line WI4783 up to 300% (generally seed-setting in that cucumber line is wery poor). In parental line of Atlas F₁ hybrid, under the influence of Tytanit the yield of seeds reached 325% in relation to control, as simultaaeously the health state of plants did significantly improve. Tytanit fertilizer application increased also by 60% the number of seeds in plants of tomato breeding line L4 Alfa and their much better germination capacity. After repeated spraying with Tytanit solution, the plants were characterized by increased number of pollen grains on the stigmas and pollen-tubes participating in fertilization process. In comparison to control, the plants treated with Tytanit showed clearly stimulated pollination and fertilization resulting in the increase of seed number. The same was observed in aster plants. Application of Tytanit fertilizer significantly reduced development of the powdery mildew on tomatoes as well as the virus on cucumbers.