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Information × Registration Number 0225U003776, (0121U107840) , R & D reports Title Scientific substantiation of theoretical and practical bases of modern selection process of grapes according to world tendencies, climate changes and greening of agricultural production popup.stage_title Визначення рівня екологічної пластичності та технологічності перспективних генотипів винограду на різних етапах селекційного процесу Head Kovalova Iryna А., Кандидат сільськогосподарських наук Registration Date 15-08-2025 Organization National Research Center "VE Tairov Institute of Viticulture and Enology" popup.description1 The aim of the research is scientific substantiation of optimization of the program of selection of grapes according to world tendencies of climate changes and greening of agricultural production. popup.description2  The research report contains 38 pages, 6 tables, 16 figures and one appendix The object of the study was grape hybrids of different origins of table and technical use at different stages of the breeding process. The aim of the study is to identify promising autochthonous grape genotypes by the level of manifestation of the main traits of breeding interest. The splitting of seedlings of hybrid combinations Kometa x Guzal Kara and Guzal Kara x Kometa was studied by the traits “bud opening” and “number of layers of hard bast”. A weak positive correlation was found between these traits, however, favorable wintering conditions allowed most seedlings to retain 75-100 % of buds. The development of hard bast did not exceed 3.5-3.75 layers on average along the circumference of the shoot. The study will be continued. A study was conducted on the level of resistance of seedlings of promising hybrid combinations against common fungal diseases of mildew, oidium, black spot and berry rot. A significant part of seedlings (45%) with a high (7.5-8 points) level of resistance was found in the combination Komet x Guzal Kara (resistant x unstable), in contrast to the combination Guzal Kara x Komet (unstable x stable) - 16%. It can be assumed that the level of resistance is transmitted from the mother variety. Significant fluctuations in the level of yield manifestation were noted in the group of table varieties and forms - from 3.5 to 31 t/ha. Promising forms Kalisto and 56-6-36 with 26 and 31 t/ha of yield, respectively, 86-96% of which were marketable. They were also distinguished by the size of the bunches of more than 500 g. The level of manifestation of the trait "yield" of technical varieties and forms varied from 4 to 21 t/ha. Almost half of the varieties and forms from the group showed a high - not less than 10 t/ha - level of yield. The optimal indicators of must quality were noted by technical forms 62-17-86, 56-63-15, 58-28-65 and the controls Rubin Tairovsky and Zagrey. Product Description popup.authors Burhelia Nadiia Ye. Herus Liudmyla V. Kovalova Iryna A. Muliukina Nina A. Papina Olena S. Salii Olena V. Fedorenko Maryna H. popup.nrat_date 2025-08-15 Close