In no examined years of the studies were found no significant differences of flowering intensity between the ownoroots trees of the cultivar Łutówka and trees budded on Prunus mahaleb. The kind of trees clearly, but not significantly, affected fruit mass. The growth of the ownroot "in vitro" trees were significantly less than the trees budded on Prunus mahaleb seedling. Fruit set and yielding of the own root trees were higher, but only in one year of study significantly higher.