Terroir 2008 banner
IVES 9 IVES Conference Series 9 Typology of wines in touch with environmental factors of terroirs and grapevine. Application to the Chinon vineyard

Typology of wines in touch with environmental factors of terroirs and grapevine. Application to the Chinon vineyard

Abstract

According to the vintage, it may be difficult for vine growers to make a decision regarding the type of wine in relation with the soils. The present work aims at proposing typology of wines to the Chinon growers, as a basis for reflection on the wine type in relation with the terroir units and the vintage water supply conditions.
In order to bring out factors associated to a wine structure, a first classification was established thanks to a multiple factorial analysis (MFA), taking into account three qualitative variables resulting from a survey on 506 cultural units of the Chinon vineyard. This first classification was then linked to a second one obtained through an ascendant hierarchical classification (AHC) carried out on an experimental network of the INRA-UVV unit of Angers (49-France). This network of 14 plots, distributed on different terroir units in the Chinon, Bourgueil and Saumur AOC, was monitored for physiological and meteorological data over the 2002-2005 period. The AHC used the data for a humid year (2004) and a dry year (2005). For each year, the experimental plots were grouped into three classes according to their pedoclimatic profiles.
By crossing the two classifications it was possible to elaborate a typology of the Chinon wines in relation with the environmental factors of the terroir units and the water supply conditions of the vintage.
This method, based only on two reference years and a wine typology for the Cabernet franc variety, was successful for analyzing the conditions for the elaboration of a given type of Chinon wine in relation to a precise cartography of the terroir units. This prospective process needs to be generalized.

Download the PDF

DOI:

Publication date: December 8, 2021

Issue: Terroir 2008

Type : Article

Authors

V. COURTIN (1), D. RIOUX (1), D. BOUTIN (2), S.CESBRON (1), A-C.KASPRIK (2)

(1) UMT Vinitera – Cellule Terroirs Viticoles, 42 rue Georges Morel, 49071 Beaucouzé Cédex
(2) Chambre d’Agriculture d’Indre-et-Loire, 38 rue Augustin Fresnel, BP 139, 37171 Chambray les Tours

Contact the author

Keywords

Chinon vineyard, terroir, vintage rainfall, wine typology

Tags

IVES Conference Series | Terroir 2008

Citation

Related articles…

Linear sweep voltammetry to classify and characterize the antioxidant properties of tannins

In recent years, numerous studies have been carried out at the OIV on oenological tannins, both with regard to oenological properties and methods of characterization. The results of these recent studies have led to the revision of the general monograph and the drafting of four new monographs, one for each of the four chemical classes into which the tannins have been grouped: ellagitannins, gallotannins, procyanidins/prodelphinidins, profisetinidins/prorobinetinins.

Read More

Exploring magnesium defficiency in Welschriesling grapevines: A multi-omics approach to address viticultural challenges

Magnesium (Mg) deficiency poses a significant challenge to viticulture, particularly affecting Welschriesling (WR), a key grape variety in Austrian and Central European vineyards.

Read More

Chemical and sensory profile of Brazilian red wines upon the cultivar and geographic origin of vineyards

Many vineyards implanted in Brazil in the last 20 years are placed under very different natural conditions if compared to Serra Gaúcha, the oldest and more traditional viticultural region in the country.

Read More

Relationship between chemical parameters of tannins and in-mouth attributes of grape phenolic fractions

Establish relationships between taste and mouthfeel properties of grapes and tannin-related chemical parameters. Tempranillo Tinto and Garnacha Tinta grapes were harvested from distinct blocks in different dates; each sample collection date was separated by one week. Grapes were destemmed and macerated in 15% of ethanol for one week. The polyphenolic fraction (PF) of samples was submitted to solid phase extraction on C18 cartridges and recovered with ethanol. PFs were reconstituted in wine model and their taste and mouthfeel properties were characterised by rate-K-attributes methodology. In parallel, concentration (TC) and activity (TAc) of tannins as well as the concentration of tannins linked to anthocyanins (T-A) were determined using HPLC-UV–VIS.

Read More

Impact of environmental conditions in vscs production during wine fermentation by Saccharomyces cerevisiae

The aroma of wine is one of the most important determinants of quality as it strongly influences the consumer’s acceptance or rejection. Among the thousands of molecules comprising the wine aroma, sulfur-containing compounds can be considered as a “double-edged sword”: some of them, deriving from varietal precursors provide fruity pleasant aromas, while other ones, produced by yeast metabolism are related to “unpleasant” aromas

Read More