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Information × Registration Number 0225U003726, (0121U107837) , R & D reports Title Research of the formation of grape harvest quality under the influence of weather and climatic conditions in different natural zones of Ukraine under the climate change popup.stage_title Формування бази даних та розробка агрокліматичної моделі формування якості врожаю винограду Head Liashenko Halyna V., Доктор географічних наук Registration Date 08-08-2025 Organization National Research Center "VE Tairov Institute of Viticulture and Enology" popup.description1 Previous studies indicate a significant dependence between the quantity and the quality of grape yields (sugar and acidity) in some years and weather and climatic conditions. The established trends of global and regional climate change require immediate studies of the expected variability in the grape harvests quality in some natural zones of Ukraine by 2050. The aim of the project is to study the impact of weather and climatic conditions on the quality of grape harvests in natural zones of Ukraine under climate change by 2050. The research will be aimed at establishing agroclimatic indicators, that determine the formation of grape harvest quality, their dynamics and trends under climate change in different natural zones of Ukraine, and dynamics and trends of grape harvest quality until 2050. popup.description2  Report on R&D F03: 46 pages, table 2, fig. 8, 48 sources GRAPES, TECHNICAL VARIETIES, QUALITY, DATABASE, AGROCLIMATIC AND BIOTECHNOLOGICAL INFORMATION, ALGORITHM, AGROCLIMATIC DYNAMIC MODEL. The object of the study is the quality of technical grape varieties (sugar content and concentration of titratable acid) under different weather and climatic conditions. The purpose of the work is to create a data bank of agroclimatic and biotechnological information regarding different grape varieties and to develop an agroclimatic model of grape harvest quality formation. Research methods - field, laboratory, methods of mathematical statistics and mathematical modeling. Based on a bibliographic search and analysis of common models of the influence of weather and climatic conditions on the formation of grape quality and the justification of weather and climatic conditions indicators, a model was developed and a database of agroclimatic information in the context of natural zones of Ukraine and biotechnological information on technical grape varieties (Odessa black, Sukholyman white, Muscat Odessa) was created. The density of the relationship between various productivity indicators (biotechnological indicators) of the studied grape varieties was determined. Correlation analysis was carried out between the sugar content and titratable acid concentration with various agroclimatic indicators - duration of sunshine (SS, h), sum of total and photosynthetically active radiation (∑Q, ∑Qf (PHA, cal∙m-2)), sum of average daily, daytime and nighttime air temperatures and the difference between the sum of daytime and nighttime temperatures (ΣТс, ΣТдн, ΣТн, ΔΣ(Тдн-Тн), ºС) and amount of precipitation (H) for the period from the filling of berries to their technical ripeness. Pair correlation coefficients (r) ranged from 0.36 to 088, and multiple correlation coefficients (R) - from 0.48 to 0.96. An algorithm has been developed and an agroclimatic dynamic model has been created for the forma Product Description popup.authors Buzovska Maryna B. Bulaieva Yuliia Yu. Vozniuk Nadiia V. Liashenko Halyna V. Melnyk Ella B. Popova Hanna K. Suzdalova Vira I. popup.nrat_date 2025-08-08 Close