Terroir 2010 banner

Analyse climatique à l’échelle des Coteaux du Layon

Abstract

[English version below]

Les études d’impact du climat sur la vigne nécessite de descendre à des échelles très fines car les facteurs climatiques sont tributaires de la topographie, la végétation, les expositions … Dans le cadre du programme ANR-JC Terviclim, 22 capteurs ont été installés dans les vignobles des Coteaux du Layon afin de caractériser le climat particulier de ces terroirs. L’analyse des températures montre de fortes disparités entre les data loggers et pourtant situés parfois sur les mêmes parcelles ou sur des parcelles voisines. Les indices bioclimatiques tels les degrés jours sont également contrastés suivant la situation des capteurs sur les coteaux.

Climate impact studies on vine require downscaling because climatic factors depend on topography, vegetation, orientation …In the framework of the ANR-JC Terviclim, 22 data loggers were settled in the “Coteaux du Layon” vineyards to characterize the particular climate of these terroirs. Temperatures analysis shows strong disparities between data loggers locate on the same plots or on nearby plots. Bioclimatic index as growing degree days are also contrasting depending on the data loggers situation in the vineyard.

Download the PDF

DOI:

Publication date: December 3, 2021

Issue: Terroir 2010

Type: Article

Authors

C. Bonnefoy (1), H. Quénol (1), G. Barbeau (2), M. Madelin (3)

(1) Laboratoire COSTEL, UMR6554 LETG du CNRS, Université Rennes 2 – Haute Bretagne, Rennes
(2) INRA UE1117, UMT Vinitera, Beaucouzé
(3) PRODIG, UMR CNRS 8586, université Paris Diderot

Contact the author

; ; ;

Keywords

Impact studies, vine, downscaling, Coteaux du Layon, terroirs, bioclimatic index

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

Marketing and zoning (“Great Zoning”): researches and various considerations

Dans de précédents travaux sur le zonage “GRANDE ZONAZIONE” (GZ) (“Grand Zonage”), on a traité, entre autre, de la “GRANDE FILIERA” (GF) (Grande filière) où parmi les 54 descripteurs prévus pour lire et évaluer par exemple un zonage, sont compris aussi la Communication
Read More

Veraison as determinant for wine quality and its potential for climate adapted breeding

The evaluation of new grapevine genotypes regarding their potential to produce high quality wines is the time limiting factor in the process of grapevine breeding. Hence, the development of quality-related markers useable in marker-assisted selection (MAS) as well as in prediction models for this bottleneck trait will tremendously enhance breeding efficiency. In extensive studies a training set of a segregating white wine F1 population (150 F1 genotypes = POP150; `Calardis Musqué´ x `Villard Blanc´) was deeply phenotyped and genotyped for model development and QTL analysis.

Read More

From the “climats de Bourgogne” to the terroir in bottles

From a chemical composition point of view, wine is the result of complex interplays between environmental, genetic and human factors. The notion of terroir in viticulture involves the vine and its environment, including phenology, geography, geology, pedology and local climate of a vineyard, along with human inputs.

Read More

Haplotype-Resolved genome assembly of the Microvine

Developing a tractable genetic engineering and gene editing system is an essential tool for grapevine. We initiated a plant transformation and biotechnology program at Oregon State University using the grape microvine system (V. vinifera) in 2018 to interrogate gene-to-trait relationships using traditional genetic engineering and gene editing. The microvine model is also used for nanomaterial-assisted RNP, DNA, and RNA delivery. Most reference genomes and annotations for grapevine are collapsed assemblies of homologous chromosomes and do not represent the specific microvine cultivar ‘043023V004’ under study at our institution.

Read More

Cover crops in viticulture

In this audio recording of the IVES science meeting 2022, Gonzaga Santesteban (Department of Agronomy, Biotechnology and Food Science, Public University of Navarra (UPNA), Pamplona, Navarra, Spain) speaks about cover crops in viticulture. This presentation is based on 2 original articles accessible for free on OENO One.

Read More