High Temperature Alters Anthocyanin Concentration and Composition in Grape Berries of Malbec, Merlot, and Pinot Noir in a Cultivar-Dependent Manner.

ABSTRACT: Climate is determinant for grapevine geographical distribution, berry attributes, and wine quality. Due to climate change, a 2-4 °C increase in mean diurnal temperature is predicted by the end of the century for the most important Argentine viticulture region. We hypothesize that such temperature increase will affect color intensity and other quality attributes of red grapes and wines. The present study investigated the effect of high temperature (HT) on anthocyanin concentration and composition, pH, and resveratrol and solids content in berries of three major wine-producing varieties during fruit ripening in two seasons. To this end, a structure that increased mean diurnal temperature by 1.5-2.0 °C at berry sites, compared to Control (C) plants grown without such structure, was implemente

SUBMITTER: de Rosas I 

PROVIDER: S-EPMC9003205 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature