La balance hydrique explique davantage la diversité intravariétale du titre alcoométrique du Merlot que l’accumulation des sucres
Dans le cadre de TerclimPro 2025, Charles Romieu a présenté un article IVES Technical Reviews. Retrouvez la présentation ci-dessous ainsi que l’article associé : https://ives-technicalreviews.eu/article/view/8506
Résumé
Abstract
The rise in temperature associated with climate change can lead to excessive sugar concentrations at harvest. To maintain varietal typicity in the future, more resilient genotypes need to be identified within clonal diversity. We studied a compendium of compositional and developmental traits in a private collection of 55 accessions and 3 ENTAV-INRA® clones of Merlot. Extensive single berry measurements revealed differences in post phloem arrest water losses at the origin of variations in sugar concentration among the most extreme genotypes.
Issue: TerclimPro 2025
Type: Presentation
Authors
1 Petrus, Pomerol, France
2 UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, F-34398 Montpellier, France
3 Institut Français de la Vigne et du Vin, F-34398 Montpellier, France
4 UMT Geno-Vigne®, IFV-INRAE-Institut Agro, F-34398 Montpellier, France