The article shows the dependence of economic efficiency of production of winter wheat cultivation technology and the degree of intensity of cultivation of the variety. Comprehensive considered one of the main characteristics of the variety, namely the degree of intensity of cultivation of the variety.

The article explains meaning of successive introduction of plants followed by their integration into cultivation, and scientifically grounded development of national varietal sources from the diversity of plants taking into account methodological aspects of practical application of botanical semantic, classification and binary nomenclature of botanical taxa. It also shows scientific aspects of systematic units differentiation caused by relevant Latin names of botanical taxa, which are to facilitate harmonization of UPOV membertates cooperation in the protection of rights of intellectual property on breeding achievements – plant varieties.

The article shows experimental data of interline hybrids of sugar beet on the basis of weight of 1000 seeds, genetic determination of characteristic based on the method of Hayman and topcrossed polytested crossbreeding is established, their comparison is made. It also highlights valuable hybrid combinations and valuable for combining pollinating lines used in the breeding to enhance properties of sowing seeds.

Breeding of columnar type apple varieties has been carried out at VNIISPK since 1984. The possibility of grow-ing of columnar type apple varieties in the crown of winter hardy semi-dwarf rootstock 3-4-98 by S. N. Stepanov’s breeding is being studied in different density of planting in the orchard (3 x 1,0 m; 3 x 1,5; and 3 x 2,0 m). The inves tigation of winter hardiness, cropping power, fruit mar ketability and biochemical composition allowed releasing two varieties «Poesia» and «Priokskoye» for state trials.

Discussed problems of planetary changes of climate, through that it is necessary to revise the terms of sowing of winter crops, and also structure of sowing of agricultural cultures. The brought transpiration coefficients over of basic agricultural cultures, that must be taken into account for forming of structure of their sowing. On the example of wheat winter-annual the done attempt to be determined with priority directions in the selection of agricultural cultures.

The results of studying of walnuts collection have been given; the evaluation of the assortment according to resistance to unfavorable climatic conditions has been done; some varieties have been recommended for using in breeding and introduction in industry.

The varieties and forms of nectarine resistant to fungi diseases (Clasterosporium carpophilum (Lev.) Aderh., Taphrina deformans Tul., Sphaerotheca pannosa (Wallr.) Fr. Lev. var. persicae Woronich) having the practical interest for modern technology growing and for breeding on these characteristics have been selected.

Assessment has been carried out for parental lines and hybrid combinations of forage beet by individual indices of productivity and morphological characteristics of root storages. Best combinations have been selected for further crossing and breeding.

The main reasons hindering expansion of assortment of horticultural crops and negatively affecting the provision of Ukraine’s population with horticultural production were discussed. The trend towards global unification of genotypes with parallel reduction of potential to andropoadaptability of chief horticultural crops is recognized as one of the main causes for instability in domestic horticulture crops production. Appropriate measures are proposed, including intensification of zonal specialization and intensification of the state protectionism over both domestic fruit farming and research developments, first of all in breeding and genetics, aimed at the ability to meet various requirements of producers, processors and consumers of fruits and berries to new cultivars.

The article offers results of genetic value assessment for pollinators resulted from population of high-productive and sugary specialization of Uladivska breeding, to be used for their recurrent improvement and development of hybridization components valuable for combining in creation of synthetics and MS hybrids of sugar beet containing reduced amount of nitrogen α-amin ions.