Characterization of varietal effects on the acidity and pH of grape berries for selection of varieties better adapted to climate change.

ABSTRACT: Climate change is drastically modifying berry composition and wine quality across the world. Most wine regions with a history of winemaking are suffering from a loss of typicity and terroir expression because of climate change impact on berry components at harvest, including wine acidity, with total acidity decreasing and pH increasing. Such changes can have a major impact on wine stability and quality. One important option for adaptation is the selection of grapevine varieties better adapted to warmer and drier conditions. Weekly measurement of tartaric acid, malic acid, pH and titratable acidity from veraison until maturity were carried out on 51 varieties over seven years in two experimental plots. Varietal differences were shown for the rate of malic acid degradation during the ripenin

SUBMITTER: Plantevin M 

PROVIDER: S-EPMC11499634 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature