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Evaluación de alternativas de gestión de viñedo para mitigar los efectos de la variabilidad climática sobre el rendimiento y la composición de uvas
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Evaluación de alternativas de gestión de viñedo para mitigar los efectos de la variabilidad climática sobre el rendimiento y la composición de uvas
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Evaluación de alternativas de gestión de viñedo para mitigar los efectos de la variabilidad climática sobre el rendimiento y la composición de uvas
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Conference Proceeding
Evaluación de alternativas de gestión de viñedo para mitigar los efectos de la variabilidad climática sobre el rendimiento y la composición de uvas
2023
Overview
Adaptation of grapevine cultivation to climate change and variability involves understanding how local environmental factors impact on grapevine physiology, impacting on yield, and final grape composition. Grape composition at harvest is determined by seasonal climatic conditions as they have an effect on grapevine physiology and development. The objective of this work is to study the impact of the post-veraison pre-pruning vineyard technique on the yield and composition components of the grapes at harvest. The evaluations were carried out on a commercial vineyard in southern Uruguay of Tannat and Merlot cultivars during the 2021 vintage. Pre-pruning at veraison did not affect the yield (kg of grapes per plant), the number of bunches per plant and bunch weight in the two varieties evaluated, but it did affect their physiological balance. On the primary composition of the grapes at harvest, Tannat reached differences in soluble solids and Merlot in total acidity. Altering the canopy after veraison would affect the physiological balance of the plants. This tendency towards physiological imbalance, should continue to be studied over several production cycles.
