Water deficit before veraison is crucial in regulating berry VOCs concentration in Sangiovese grapevines.

ABSTRACT: The impact of water deficit on volatile organic compounds (VOCs) responsible for grape aroma remains quite unclear. The aim of this study was to evaluate the effect of different timing and intensity of water deficit on berry VOCs and on their biosynthetic pathways. Fully irrigated control vines were compared with the following treatments: i) two different levels of water deficit from berry pea-size through veraison, ii) one level of water deficit during the lag-phase, and iii) two different levels of water deficit from veraison through harvest. At harvest, total VOC concentrations were higher in berries of water stressed vines from berry pea size through veraison or during the lag phase, whereas post-veraison water deficit determined similar concentrations as control. This pattern was even

SUBMITTER: Palai G 

PROVIDER: S-EPMC9986437 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature