Microclimate of Grape Bunch and Sunburn of White Grape Berries: Effect on Wine Quality.

ABSTRACT: This research aimed to evaluate the composition of wines made with white grapes which are particularly susceptible to sunburn symptoms due to the absence of anthocyanin. Sunburn is a complex physiological dysfunction leading to browning or necrosis of berry tissues. In vintage 2021, the canopy of 'Verdeca' grapevines grown in Salento, South Italy, was differently managed by sun exposing or shading the bunches. Micrometeorological conditions were studied at different levels. Grapes were vinified, comparing the winemaking with and without skin maceration. The vegetative-productive balance of plants was not substantially modified. On the contrary, a significant effect was observed on the quality and quantity of grapes produced: smaller berries with sunburn symptoms were found on unshaded bunc

SUBMITTER: Rustioni L 

PROVIDER: S-EPMC9914167 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature