Grape ripening heterogeneity in white and red cultivars (Vitis vinifera L.) grown on different calcareous soils using technological and phenolic markers.

ABSTRACT:

Background

An understanding of grape ripening heterogeneity is essential to optimize vineyard management and to ensure wine quality. This study investigated the effect of calcareous soils with different textures (limestone and marlstone) on the chemical composition of white ('Grillo' (GR) and 'Chardonnay' (CH)) and red ('Nero d'Avola' (ND) and 'Syrah' (SY)) grape cultivars, including both autochthonous and allochthonous types. Grape quality was evaluated in relation to soil type using key compositional parameters and the degree of ripening homogeneity at harvest, quantified with two novel indices: the technological variability index (TVI) and the phenolic variability index (PVI).

Results

Soil type was the dominant factor influencing grape physicochemical and phenolic composi

SUBMITTER: Vitaggio C 

PROVIDER: S-EPMC12701293 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature