Published in Scientific Papers. Series B, Horticulture, Vol. LXVIV, Issue 1
Written by Alina Georgeta DOBREI, Eleonora NISTOR, Daniela DOBROMIR, Simion ALDA, Marcel DANCI, Daniela SCEDEI, George Dragoș CONSTANTINESCU, Alin DOBREI
Climate variability has necessitated adjustments in varietal selection and growing practices for many wine grape varieties. Simultaneously, rising temperatures and increased solar insolation have led to the accumulation of higher sugar levels in grapes, with important implications for the winemaking process. This study, conducted in a vineyard from Miniș-Măderat area, examined the influence of climate variability on the ripening time and berry sugars accumulation of several wine grape varieties. Climate data from recent years were compared to those from 2001, chosen as a benchmark year. Climate resources were analyzed based on the vine's requirements, with key climate indices calculated. Additionally, the evolution of grape ripening and the optimal harvest time were monitored, and differences were compared with the reference year. The results revealed that the majority of varieties ripened 20–30 days earlier, depending on the year and variety. A significant increase in must sugar content was also observed. These findings highlight the need for adaptive strategies in viticulture to address the challenges posed by climate variability.
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