The paper presents the results of the comparative assessment of varieties and selected breeding forms of the snowball tree (Viburnum opulus L., Adoxaceae). The article presents the biochemical composition, marketable and taste qualities of fruits of varieties and elite forms of the snowball tree of regular selection of the Institute of Horticulture of the NAAS and its network, grown under conditions of the Central part of the Forest-Steppe of Ukraine. We selected the sources of specific economic and valuable features: large-fruits (weight of the fruit of 1.24–1.80 g, weight of bunch of 109–126 g – Velykoplidna, Ania, Uliana, ЕF-3-10-2010), high taste qualities – degustation evaluation of 8.8–9.0 points and chemical composition of fruits (EF-5-12-2012, EF-3-10-2010, Bagriana, Koralova). The study revealed that the fruits of some selection samples are promising raw materials for production of food products and ingredients of functional purpose, including syrups, mors, juices (varieties Kоrаlоvа, Bаhrianа, Аnia, Uliana, ЕF-3-10-2010, ЕF-5-12-2012, ЕF-7-31-12 with sugar-acid index of 4.86–7.63 and juiciness of the fruit of 4.86–7.63%); jelly, marmalade (Bаhrianа, Аnia, Kоrаlоvа, ЕF-3-10-2010, which have increased content of pectic substances – 9.1–13.0 mg/kg and Р-active compounds – 740–950 mg%); powdered food additives (Kоrаlоvа, ЕF-3-10-2010, ЕF-5-12-2012, ЕF-7-31-12); manufacturing pharmaceuticals (ЕF-2-56-13). Consumption of these products reduces the risk of diet-related diseases, preventing deficiency and replenishing nutrients in the human body, thus preserving and improving health due to the presence of physiologically functional ingredients in their composition. The modern food industry is paying more attention to healthy food with a balanced composition of nutrients, including functional products. Today the snowball tree is a nichе plant both in Ukraine and in the world. According to national scientists and market analysts, today some important factors of the cultivation expediency of snowball tree fruits can be distinguished. The weather and climate and soil conditions in Ukraine are quite favourable for cultivation of this plant. The creation of raw material zones would allow the population to be provided with functional products in sufficient quantity, and, if necessary, allow this plant to be cultivated for export.

The results of studying the morphological and biochemical parameters of plants of sea buckthorn are presented. For the first time, genotypes of sea buckthorn ranked by ontogenetic and morphological characteristics and ecological features (relation to the level of soil moisture and humidity air, providing soil nutrients, its рН, amount and mode of precipitation, lighting, positive and negative temperatures) natural, semi-natural and anthropic coenopopulations genotypes of sea buckthorn be ranked by ecomorphic affiliation to certain climate ecotypes (рolissia, forest-steppe) and subecotypes (western-forest-steppe, northern-forest-steppe, рolissia–forest-steppe, central-forest-steppe). Biotypes, that have been a limited ability to carry soil and atmospheric drought (in which the root system is well developed, ground part with copious leaf cover), selected in natural and semi-natural places of growth appertain tо mesophytes (Ms). The genotypes, selected in catchment areas, the lowlands of Forest-Steppe, Polissia of Ukraine, appertain to mesohygrophytes (MsHg) (by morphological and physiological features characterized by weak drought and heat resistance – 6 points, require sufficient moisture and sufficient provision of organic and mineral substances, are weak frost resistant, but very resistant to temperature changes during the winter). A special group makes up widely ecological flexibility mesophyte plants of sea buckthorn – mesoxerophytes (wfMsKs) – are presented рolissia–forest-steppe subecotype, characterized by wide environmental plasticity, due to the high winter, drought and frost resistance, compared to others subecotype. Its have adapted to withstand prolonged of soil and air in the extreme phases of ontogeny, in particular, in the phase of fruit filling and ripening, giving high stable harvest. Particular breeding and economic value in terms of formation stably high yields under conditions of global climate change, its aridization and displacement borders zoning of fruit crops have xeromesophytes (KsMs) presented central forest-steppe subecotype – in view of the its relatively average demanding to soil and air moisture and resistance to moisture deficiency. Highlighted forms – sources of valuable economic features of sea buckthorn (large berry, firm skin, long berry peduncles and dry separation of berries and іts increased biological value, freezing capacity and making beverages, high yields.

We proved that plants A. cylindrica, T. spelta, T. turgidum, T. sphaerococcum, T. vavilovii, T. persicum, T. araraticum, T. aestivum var. barbarossa, and T. aestivum var. ferrugineum, owning high drought resistance, have a stable high productive potential and quality indicators of grain (protein, gluten, dietary fiber content), that allows use them in the production of products functional purpose (bakery, confectionery, sour-dairy products, including yoghurts, and dessert cheese). Implementation mechanisms are disclosed adaptive potential plants of cultural and wild cereals by biochemical (protein content, gluten, starch in seeds, the presence of gliadin proteins (Glі-1В1, Glі-6D2, Glі-6D3, Glі-6В2), molecular-genetic markers (allele genes of drought resistance – Dreb А1, Dreb В1, Dreb D1; glutenins Glu-D1) and morphological-ontogenetic criteria. For the first time for successful address introduction cultural and wild cereal plants suggested by the criteria of mechanisms drought resistance to rank plants by potential ecological valence regarding the unfavorable hydrothermal regime. Differentiation of genotypes based on elements of plant strategies: features of their ontogeny, morphological characteristics, physiological and biochemical parameters, biochemical and molecular-genetic markers. In this connection, genotypes of cultural and wild cereal plants in conditions in sіtu by sensitivity on the effect of hydrothermal stress are divided into xerophytic, mesophytic and intermediate – xerophytic-mesophytic types of development. That's it ranking underlying on the principles of autecological approach, manifestation of a multi-level system of answers plant organisms at different levels of integration, as adaptive reactions. In particular, mechanisms such as: functional stability (stipulated structural and functional features of plants), morphological tolerance (the ability of plants to resist damage without reducing performance), ontogenetic evasion (stability due to features ontogenetic development), ecological plasticity of the organism and plant populations as a whole. The obtained results of the biochemical and molecular genetic markers of adaptability and quality indicators of genotypes cultural (wheat, triticale, rye) and wild cereals (A. cylindrica, T. spelta, T. turgidum and others) are important in breeding and successive targeted use in the food industry are given.

The priority in studying new lines and varieties of common winter wheat was their ecological plasticity by biological and technological markers. It was revealed that for stability and plasticity on the basis of seed production the varieties and lines are divided into stable, narrow and wide-adaptive ones, the latter of which are characterized by a wide range of ecological valence (with high and medium variability and homeostasis, with variance of stability which is close to zero, and with environmental factor plasticity which is greater than one). We studied new cultivars and lines of hexaploid сommon winter wheat from Bila Tserkva National Agrarian University and Nosovka Breeding and Research Station of V.M. Remeslo Mironovka Institute of Wheat by seed production, technological indicators of grain, flour and bread quality. The new perspective highly productive and ecologically plastic varieties and lines of сommon wheat are: Yuvivata 60, Zoriana Nosivska, Nosshpa 100, L 3-95, KS 14, KS 22-04. According to representative criteria, the most promising genotypes, which are the main products in Forest-Steppe of Ukraine and high-quality raw materials for bakeries and bioethanol were identified. It was found that technological characteristics of grain, flour and bread of new cultivars and lines of common wheat meet the modern requirements for production of dietetic food and bioenergy products, that is important and relevant in the context of food security in Ukraine. Users are permitted to copy, use, distribute, transmit, and display the work publicly and to make and distribute derivative works, in any digital medium for any responsible purpose, subject to proper attribution of authorship. Пріоритетом у вивченні нових ліній та сортів пшениці м'якої озимої була їх екологічна пластичність за біологічними та технологічними маркерними ознаками. Досліджено, що за стабільністю й пластичністю насіннєвої продуктивності сорти та лінії поділяти на стабільні, вузько-та широко-адаптивні, останні з яких характеризуються найширшим діапазоном екологічної валентності (мають високу й середню варіабельність та гомеостатичність, варіанса стабільності в них близька нулю, а коефіцієнт екологічної пластичності більший одиниці). За параметрами насіннєвої продуктивності та технологічними показниками якості зерна, борошна й хліба ідентифіковано найбільш перспективні біотипи пшениці, основна продукція яких в умовах Лісостепу України є якісною сировиною для виготовлення хлібопродуктів і біоетанолу. Перспективними високо продуктивними та екологічно-пластичними сортами та лініями пшениці м'якої є: Ювівата 60, Зоряна Носівська, Носшпа 100, Л 3-95, КС 14, КС 22-04. З'ясовано, що технологічні показники зерна, борошна та хліба нових сортів і ліній пшениці озимої відповідають сучасним вимогам виробництва дієтично-харчових і біоенергетичних продуктів, що є актуальним та пріоритетним у контексті продовольчої безпеки України.Ключові слова: пшениця м'яка озима, екологічна пластичність, насіннєва продуктивність, біологічні і технологічні маркери.

The most numerous and malicious types of pathogens fungal diseases of plants cultural cereals -Triticum аestivum L., Secale cereale L. та Triticum trispecies Shulind. in conditions of anthropical ecosystem Central Right-bank Forest-Steppe are Microdochium nivale (Fr.), Blumeria graminis (DC.) f. sp. tritici Speer, Puccinia recondita Rob. ex. Desm f. sp. tritici та Tillitia caries (Tul.), Tillitia secalis (Korda, Kuhn) etc., manifestation of parasitism depends on genotypical, phenotypical, ontogenetical peculiarities plants, growing conditions. According to the results of years of research (2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016) highlighted group of plant formsthat are characterized by mono-, two-and polyfacet of resistance epiphytoparasites. That peculiarity owning heterogeneous or multilinearity plant forms (Аriivkа, Yuvivata 60, КС 1, Л 3-95, Л 4639/96), formed as a result of hybridization and repeated bekrossing and selected from hybrid populations by means individual and mass selections. The mechanism of plant genetic heterogeneity of the aforementioned forms due to the presence of multivariate phenetical markers -components of the spectra gliadin proteins (6А1, 6А4, 6В1, 6В3 etc.), as well as the phenotypical and ontogenetical their homogeneity, which increases the resistance of plant populations to adverse biotic stress environment. Among the studied assortment varietal plants tribe Triticeae, medium higher stability of some of them to the spectrum specified above epiphytoparasites caused by their variety individuals, which, mass and individual selection as a result of the reproduction, give rise to whole families -point populations (manifesting different firmness to one and the same species and races of pathogens, including with progressive race creative process), that is the basis of formed varieties -as megapopulation. Adaptive mechanisms of plant populations cultural crops to adverse biotic stress, particularly damaging pathogens are a number of biological peculiarities (molecular genetics, physiological, biochemical, morphological, ontogenetic, biocenotic), identification of plants which reflects the degree of their adaptive ability, ecological plasticity and sustainability. In general, the mechanisms resistance of plant tribe Triticeae to epiphytoparasites can distinguish by the following types: functional stability (sustainability, is caused by peculiarities of functional parameters of the plant), morphological tolerance (the ability of plants to resist damage without reducing productivity), ontogenetic evasion (sustainability, is caused by peculiarities ontogenetic of development of plants), photoperiodic sensitivity (retarded the development in autumn and late spring vegetation) and genetic heterogeneity (the presence of morphologically identical homozygous of lines differing by the spectrum of component proteins gliadin). Plant forms that possess mono-and polyfacet resistance to epiphytoparasites avoid parasite influence of fungi due to the mechanism ontogenetic evasion (Slav...