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IVES 9 IVES Conference Series 9 Phenological characterization of a wide range of Vitis Vinifera varieties

Phenological characterization of a wide range of Vitis Vinifera varieties

Abstract

In order to study the impact of climate change on Bordeaux grape varieties and to assess the adaptation capacities of candidates to the grape varieties of this wine region to the new climatic conditions, an experimental block design composed of 52 grape varieties was set up in 2009 at the INRAE Bordeaux Aquitaine center. Among the many parameters studied, the three main phenological stages of the vine (budburst, flowering and veraison) have been closely monitored since 2012. Observations for each year, stage and variety were carried out on four independent replicates. Precocity indices have been calculated from the data obtained over the 2012-2021 period (Barbeau et al. 1998). This work allowed to group the phenological behaviour of the grapevine varieties, not only based on the timing of the subsequent developmental stages, but also on the overall precocity of the cycle and the total length of the cycle between budburst and veraison. Results regarding the variability observed among the different grape varieties for these phenological stages are presented as heat maps.

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Publication date: May 31, 2022

Issue: Terclim 2022

Type: Poster

Authors

Agnès Destrac Irvine, Karel Mercken, Diego Vergara, Mark Gowdy, Nathalie Ollat and Cornelis Van Leeuwen

EGFV, Univ. Bordeaux, Bordeaux Sciences Agro, INRAE, ISVV, Villenave d’Ornon, France 

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Keywords

phenology, classification, climate change, precocity indices

Tags

IVES Conference Series | Terclim 2022

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