Osypchuk A. Creation and valuation of the breeding material of the potato for the different soil and climatic zones.

Object: potatoes. Purpose: the development of new breeding material of potato for the Polesje and other soil and climatic zones of the Ukraine. Method: hybridization, self- pollination, biochemical analysis, individual selection, genetical-statistical analysis, correlation's. Results: for the first time in different soil and climatic zones of the Ukraine there have been studied and found combinations of crosses and self- pollination for the development of breeding material of potato with high yielding indexes, starch and crude protein contents and stability as to traits in question. There have been revealed the peculiarities in parental forms' selection for the mentioned traits and has been shown their possible combination in one genotype. In cooperation with other authors new cultivars of potato have been released (6).The field of application: breeding research institutes of the Ukraine, elite farms, different farms of private property.