In the collection initial material of china squash we found the variety from China Zoria Schodu (Star of Orient) with short length of stem. It is the new genetical donor for the breeding «bush» varieties. Inheritance length of stem in china squash is dominant.

In the Forest Steppe Zone of Ukraine studied 6 sorts and 3 hybrids of sweet com. According with results of research work the author came to the conclusion that sorts and hybrids distinguished some economic- important characteristics.

Creation of Initial raw for breeding of winter wheat by change of the development type under low temperatures influence was described. Seeds of spring wheat were vernalized in aluminum weighting bottle. By using low temperatures at sawing of M2-6 at the begin ind of optimal terms of sawing of winter wheat, new winter-hardy variety of Voloshkova was bred.

The research held in the Central Polissya Zone show that the productivity and quality of the harvest derived from the new species Kamenyar and Irma depend strongly on the optimal setting of the sowing and fertilization norms. The results of the two-year-long research testify high crops of Kamenyar, which yields by its quality to Irma.

Varietal supply with fodder crops of Ukraine’s market and DUS-test of new varieties of plants in 2006 on their suitability for dissemination were analyzed in the article.

Crop capacity and productivity elements of winter wheat domestic sorts have been investigated. Valuable sources on the basis of given characteristics for getting selective material of high quality have been singled out. Correlation relations between crop capacity and productivity elements of winter wheat sorts have been established.