The author has reserched the resistance of scab-immune apple cultivarsbelonging to different ecological and geographical groups to unfavorable water regime conditions and temperature stressors in summer. The comparative studies of their drought and heat-resistance have been carried out. According to the complex of the water regime idexes the cvs "Orlovskoye Polyesye", "Florina", "Imant", "Amulet" and "Vitos" have been seleted as the most drought-adapted and higt heat-resistant.

The article explains the aim and objectives of parental components of maize hybrids identification in the course of soil varietal control. Scientific background has been provided to methodological aspects of comparative evaluation of morphological characteristics on control plots for the purpose of establishing authenticity of maize hybrids circulated at the market.

У F2 проведено гібридологічний аналіз 80 сімей реципрокних гібридів від схрещування зразків жита з ознаками високорослості, звисаючої листкової пластинки, воскового нальоту (hlhlElElWcWc (сорт В’ятка 2) з новим донором альтернативних ознак – домінантної короткостеблості, рецесивних еректоїдності і відсутності воскового нальоту на листках і стеблах (HlHlelelwcwc). Дослід проведено за однаковою схемою у трьох екологічних місцях: Носівській СДС, Верхняцькій СДС і Волинському ІАПВ. Вперше отримані результати, які відповідають тригібридній схемі розщеплення відповідно до 27;9;9;9;3;3;3;1, повсюдно в цілому. Аналіз достовірно підтвердив розщеплення по трьох парах незалежних генів.

Genetic and statistical analyzes of ten quantitative characteristics inheritance of reciprocal populations F2 of three-hybrid crossing by plant height, leaf blade electroidy and absence of glaucosity on the plants of Winter Rye in three breeding institutions – Nosivskiy Variety Testing Station (VTS), Verhnianskiy VTS and Volynskiy Institute APV. Major portion of phenotype variation has been determined by environmental factors. Genotype variability of those characteristics is predetermined by effects of domination and epitasis, so the breeding aimed at acquirement of heterosis effect when ZKZ (ЗКЗ) and SKZ (СКЗ) are applied is expected to be promising.

The article presents summary of the research of inheritance issues, as well as permanency and polylithism of soft wheat plants, and utilization of the above trait for identification of genotypes in the course of DUS examination of varieties. Relation of height of plants to their resistance to lodging and crops productivity has been studied. Expediency has been grounded for setting respective agro- ecological conditions enabling the plant height to fall within the limits of genetically conditioned optimum for every variety.

The article considers national varietal sources of sugar beets, namely the progress of their generation, as well as general characteristics of productivity. Main trends in breeding reflecting the needs of society are highlighted. Importance of official qualifying examination for generating high-quality varietal diversity aimed at meeting the needs of national beetroot industry is emphasized.

On the basis of literary sources history of origin and development of agriculture is rotined in Ancient. The first Civilizations arose up on fat streamside lands of the large rivers: Nile, Euphrates, tiger, Inda, Ganga and other Earths and plenty of water are fertile during an overflow, a warm climate allowed to Ancient civilizations to grow 2-3 harvests in a year. For the receipt of high harvests, a man had to study the modes of overflow of the rivers, look after heavenly bodies, determine the areas of scopes and terms of leadthrough of the field works. The decision of these questions resulted in the origin of agronomics, astronomy, mathematics. Large harvests were instrumental in the origin of peculiar, enriching of the states, to development of trade and culture on the whole. Riches of country and overpopulation resulted in the origin of wars which one states perished as a result of, second – blossomed. Scientists consider that a high culture, intensive exploitation of soils and aggressiveness of man, brought the most Ancient Civilizations over to the ecological crisis and their elimination.

Assessment is provided to ecological flexibility and stability of Peach Varieties in Steppe zone by results of indices obtained in three years of studying with application of regression analyzes. Varieties highly flexible against climatic conditions of growth environment have been pointed out.

The authors present the results of estimating seven raspberry cultivars - 'Novokutaivs'ka'(c), 'Phenomen' (c), 'Sanya', 'Perseya', 'Gusar', 'Kryepysh' and 'Strunka' - concerning their capability of forming yield depending on the cultivation year weather conditions. The cv 'Gusar' has been selected which had the highest yield of high-quality berries for two years of researches (2009-2010).

The article researched genetic potential, morpho-biological characteristics and features of new varieties of winter wheat varieties of semi-dwarf and short-stem types. It was established that new generation of such varieties displayed improved architectonic of plants, as well as a complex of morphological and economical value chararacteristics and features, combined high genetic potential of productivity with good adopting features, and short stem with high resistance to drowning, and generated higher crop capacity compared to conventional mid-ripening varieties.