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Last update: May 2021

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Ecophysiologie et Génomique Fonctionnelle de la Vigne - Umr 1287 EGVF

UMR 1287 - EGVF

Unité Mixte de Recherche (INRA, ENITAB, Université de Bordeaux)

Ecophysiologie et Génomique Fonctionnelle de la Vigne
I.S.V.V Bordeaux, 210 Chemin de Leysotte

33882 Villenave d’Ornon Cedex, France

Projet ROOTLOIREVALLEY

New rootstocks selection adapted to climate change

Funding : InterLoire
Period : 2019-2022
Contact EGFV : Elisa MARGUERIT

  

Abstract: The creation and selection of new grapevine rootstocks still rely on entirely “traditional” methods. There are no early selection markers that can be used routinely and knowledge of the genetic determinism of the traits of interest is scarce. In France, the rootstock innovation program is led by UMR EGFV and is the subject of active collaborations with IFV with the objective of gradually transferring the final selection activities to this organism.

The ROOTLOIREVALLEY project aims to: 1) Characterize existing resources concerning responses to water deficit on the GreffAdapt device (δ13C on must, test for δ13C on leaves,% defoliation, maintenance of yield) 2) Characterize new genetic resources by evaluating responses to the water deficit of a cross V. berlandieri × V. rupestris 3) Carry out a systematic review of the literature and a meta-analysis to establish an exhaustive assessment of the literature and of the rootstock trials already carried out (unpublished trials will be entered in the Silex Porte-greffe information system), 4) Install mother vines in the Loire vineyards in order to gain independently from the wooden supplies (5 to 10 rootstocks from the GreffAdapt device and the V. berlandieri × V. rupestris cross could be planted in this mother vines device).