Purpose. To analyze thecollection of hybrid tea roses for the countries of origin, flower color, years of breeding. To select best modern cultivars for use in landscaping basing on evaluation of ornamental properties and economic characters. Methods. Field study, comparative analysis, generalization. Results. The collection of roses at M. M. Hryshko National Botanical Garden (the city of Kyiv) has been analyzed. After screening the collection, 141 hybrid tea rose varieties have been revealed. The collection of hybrid tea roses varieties has been analyzed for the countries of origin, flower color, years of breeding. Modern varieties (bred after 2000) has been described and their decorative value, economic characters has been estimated. Conclusion. The analysis of the collection of hybrid tea roses showed that most of them are varieties with red and pink flowers bred in 1961–2000 in countries of Western Europe. Evaluation of modern varieties for ornamental properties and economic characters allowed the authors to recommend 10 hybrid tea varieties for use in landscaping, namely: ‘Akvarel Rose Park’, ‘Alain Souchon’, ‘Aphrodite’, ‘Chippendale’, ‘Edith Piaf’, ‘Laetitia Casta’, ‘Line Renaud’, ‘My Girl’, ‘Pullman Orient Express’, ‘Terracotta’.

Purpose. To analyze peculiarities of Ukrainian cereals and oilseeds trade, the situation on the world market, and determine future prospects of its development. Methods. Analysis and synthesis, comparative evaluation, graphic procedure. Results. The role and place of Ukraine in a total grain supply to the world market was determined. Ukraine is a world’s top ten grain producer. Among domestic agricultural products, cereals, oilseeds and sunflower oil are in the highest demand in the world. In recent years, our state has reinforced its status as one of the leading exporters of cereals. The commodity pattern of cereals and oilseeds export was analyzed with specifying most in-demand positions and the main countries purchasing these pro­ducts. According to the results of 2015, Ukraine obtained the highest foreign currency revenue from export of corn, wheat and barley (in grain structure) including soybeans and rapeseed (among oil crops). Key domestic and multinational operators are the main exporters of cereals and oilseeds in Ukraine and still hold their leading position. It was found a significant excess of import price of seeds as compared with export price of crops grown in Ukraine. Assortment of maize and sunflower seeds offered by major companies-producers in Ukraine was studied. Main trends of the world grain market development are considered. Conclusions. It was established that Ukraine is one of the major exporters of cereals and oilseeds. However, volatility of their prices significantly affects the export revenue that was decreasing even with increasing export quantities in kind. The dependence of domestic grain industry development on high-quality imported seed of maize and sunflower hybrids was recorded. It is expected that in the years to come Ukraine will maintain its strong positions in the world’s grain market.

Purpose. Analysis of hexaploid triticale breeding process for drought resistance through the use of systemic ecological tests in contrasting conditions. Methods. Dialectical, field, laboratory and statistical ones. Results. Medium-grown (‘Amos’, ‘Nikanor’, ‘Rarytet’, ‘Yaroslava’) and low-stem (‘HAD 69’, ‘HAD 86’, ‘HAD 110’, ‘Timofei’) multiline varieties of winter and alternate hexaploid triticale were developed with higher adaptability, potential yield of 9–12 tons per ha and high bread-making properties. Among the most drought resistant genotypes, such varieties as ‘Amos’, ‘Buket’, ‘Harne’, ‘Markiian’, ‘Kharroza’, ‘Shalanda’, ‘Nicanor’ and ‘Yaroslava’ showed high values of yield, plasticity and stability. Conclusions. The use of interspecific hybridization instead of intergeneric one in hexaploid triticale breeding, together with systemic testing of the hybrid material in contrasting agro-ecological zones, ensured the creation of multiline competitive varieties with an optimal combination of yield and adaptive properties

Purpose. Determination of the possibility to diffe­rentia­te triticale samples by starch grain size and identify samples with a minimum size of granules that have a significant positive correlation with the efficiency of the starch transformation into ethanol. Methods. Light mic­roscopy of grinded triticale grains. Results. Analysis of the starch granule size in triticale samples was performed. The minimum average granule size was observed in line Kc-270/14 (23.78 µm), maximum one – in line KR-110/14 (28.06 µm). The size of starch granules in a soft winter wheat variety ‘Tsvit Kalyny’ was 24.2 µm that was within the values typical for winter triticale varieties and lines. The size of the majority of granules ranged from 15 to 35 µm, but their distribution was uneven in the studied lines. Conclusions. Considerable polymorphism of winter triticale for the starch granule size was established. It was found that the minimum average size of starch granules was observed in the samples characterized by minimum maximum size of granules, low frequency of granules of more than 35 µm, and therefore, minimum dispersion. Based on this, assumption can be made about the possibility to evaluate a sample for the presence of granules larger than 35 µm that can significantly reduce the number of measurements and speed up analysis.

Purpose. Study of winter wheat varieties that were bred at the Institute of Irrigated Farming NAAS through ecological testing in Turkey. Test procedures both in Ukraine and Turkey meet the requirements of the International Union for the Protection of New Varieties of Plants (UPOV). Methods. Field, laboratory ones: structural analysis, quality analysis, statistical analysis. Results. The Exporter Unions Seed and Research Company (ITAS) during 2011–2013 tested winter wheat varie­ties bred at the Institute of Irrigates Farming (IIF) NAAS at four areas of the Central Plateau of Turkey comparing them with local varieties registered in this country. According to the results of these tests the Exporter Unions Seed and Research Company identified Kohana variety as candidate for the state registration in Turkey. Conclusions. The realisation of the innovative product in Ukraine and entitlement to use intellectual property due to licensing agreements is expected. The Institute of Irrigated Farming NAAS continues to create new varieties of winter wheat which can be transferred to other countries for testing for the purpose of introduction and further expansion.

Мета. З’ясувати особливості формування адитивних біоценотичних зв’язків у фітоценозах тритикале озимого в умовах лісостепового та полісько-лісостепового екотопів. Методи. Польові, лабораторні дослідження та математично-статистичний аналіз. Результати. Досліджено чутливість генотипів тритикале озимого, зокрема АД 256, Славетне, Славетне поліпшене, Пшеничне, Чаян, Ягуар, Августо, ДАУ 5 і Вівате Носівське, на дію мікробних препаратів альбобактерину та діазобактерину в умовах лісостепового та полісько-лісостепового екотопів. Встановлено, що інтродукція агрономічно корисної мікробіоти в фітоценози тритикале озимого забезпечує формування адитивних біоценотичних зв’язків, ефективність яких визначає рівень продуктивності зернової культури. Висновки. Для забезпечення оптимальних цільових параметрів урожаю зерна в умовах лісостепового та полісько-лісостепового екотопів доцільно проводити передпосівну інокуляцію насіння тритикале озимого ефективними штамами мікробних препаратів – Azospіrіllum brasilense діазобактерину та Achromobacter album 1122 альбобактерину.

Purpose. To study the influence of agriecological conditions of edaphic-climatic macro- and microzones on adap­tability and productivity of new soft winter wheat, identification and selection of complementary varieties for appropriate conditions. Methods. Field, laboratory, analytical and statistical ones. Results. Peculiarities of the formation of productivity of varieties and its stability cultivation on the condions of cultivation in edaphic-climatic zones, subzones and microzones, including favourable and unfavou­rable years were studied. For realizing the potential of their productivity, it is advisable to introduce a differentiated approach to their cultivation in agri-climatic zones, subzones, microzones according to the requirements of biological characteristics of varieties, their natural adaptive capacity, natural and ecological environment of these zones. Complementary varieties were identified and recommended for use in edaphic-climatic zones, subzones and microzones that demonstrated high plasticity, better adaptability to favourable agri-ecological factors and were more tolerant and resistant to adverse ones. Conclusions. According to the set of productivity and ecological plasticity indices, it is desirable to cultivate varieties Sotnytsya, Kalancha, Hurt, Tonatsiya, Dobrochyn, Gubernator Donu in the Steppe zone; Sotnytsya, Oriyka, Lira Odeska, Tatsitus and Fidelius – in the Forest-Steppe; Tatsitus, Fidelius, Sailor, Etela – in the Polissia.

Purpose. Revealing of adaptive properties of plant varieties of red beet Bordeaux Kharkivskyi and Aktion based on the study of plant growth regulators for marketable production in the Steppe zone of Ukraine. Methods. Field, laboratory ones, variance analysis. Results. The influence of plant growth regulators (Lignogumat, Betastimulin) on earliness and productivity of such red beet varieties as Bordeaux Kharkivskyi and Aktion was established. Conclusions. Plant growth regulators (Betastimulin, Lignogumat) stimulated seed sprouting of red beet Bordeaux Kharkivskyi and Aktion varieties, activated vegetative plant growth increa­sing marketable yield. Application of Betastimulin (0.2%) for red beet Kharkivskyi Bordeaux and Aktion varieties provides the highest number of marketable beetroots, thus forming marketable yield of 44.7 and 54.9 t/ha respectively with the average beetroot weight of 328–519 g.

Purpose. Substantiating the selection of potato varieties for their ecological plasticity and stability to grow in Polissia. Methods. Field, laboratory, analitycal and statystical ones. Results. Impact of weather conditions during the growing season on the stability of potato varieties was estimated by indicators of yield, starch content and collection over the years by determining the average, standard deviation, minimum, maximum values and range of variation. ‘Memphis’, ‘Faluka’, ‘Arsenal’ and ‘Evolution’ were distinguished from the studied potato varieties by high genetic stability – their deviation from the average variance marked «minus» had values that were significantly less than zero. ‘Faktor’, ‘Flamenko’ and ‘Evora’ varieties are plastic (deviation is close to ±0), ‘Kolomba’, ‘Arizona’ and ‘Voliumiia’ ones – very plastic (deviation is most distant from zero). The studied varieties were distributed by homeostasis as follows: ‘Arizona’, ‘Colombo’, ‘Factor’ and ‘Memphis’ are the most valuable. Conclusions. ‘Evora’ potato variety can be considered intensive in terms of yield. ‘Evolution’ and ‘Flamenco’ varieties formed stable yields, during the years of study the difference between their maximum and minimum yields was the least – 8.2 and 9.3 tons per ha, respectively. Environmental assessment according to Eberhart and Russell indicates a high genetic stability of such potato varieties as ‘Arizona’, ‘Volyumiia’, ‘Kolombo’, ‘Evora’ and ‘Flamenko’. Conditions of Zhytomyr Oblast Plant Varieties Studying Centre are the most favorable among the studied regions to cultivate potato varieties.

Nomenclature of genus Vaccinium considered, as well as the application of names for indigenous and introduced species and denomination of fruit crops as derived from those species. System of binary species names for Vaccinium s.l. has been proposed as based on the Ukrainian generic name ‘lokhina’ that best complies with the principles for establishing generic names.