Terroir 1996 banner
IVES 9 IVES Conference Series 9 The influence of terroir on the quality of wine of the Cahors A.O.C

The influence of terroir on the quality of wine of the Cahors A.O.C

Abstract

[English version below]

Dans le but d’améliorer la qualité et la typicité des vins de l’Appellation d’0rigine Contrôlée CAHORS, une étude a été réalisée afin de mettre en évidence l’adéquation Cépage-Terroir- Qualité du vin. Selon la méthodologie proposée par MORLAT et ASSELIN (1992), neuf unités terroirs ont été déterminées. Sur chacune, des parcelles de référence homogènes quant au matériel végétal Cot ou Malbec ( cépage principal de cette appellation greffé sur S04, et aux méthodes culturales, ont été suivies au niveau agronomique et œnologique (GARCIA et al., 1996). Les résultats ont permis de déterminer les potentialités viticoles et œnologiques de chaque terroir. Des stratégies de gestion de vignoble peuvent être proposées aux vignerons afin de leur permettre la production de vin présentant les meilleurs qualités et typicité en fonction de leurs terroirs.

The aim of this study was to identify terroir-cultivar-wine quality adequations in order to improve the quality and typicity of wines from the “Appellation d’Origine Contrôlée” CAHORS. According to the approach defined by MORLAT and ASSELIN (1992), nine wine terroir units were characterized. Within each of these units, reference plots with homogeneous plant material (Cot or Malbec, the main cultivar, grafted on S04) were identified. These plots were also submitted to the same cultural practices and tillage operations. Furthermore, all the plots were subjected to the same agronomical and enological practices. Results were used to determine the viticultural and enological potentialities of each terroir. Relevant vineyard management strategies can thus be proposed to winegrowers in order to produce wines with the highest quality and typicity in relation to the vineyard terroir.

DOI:

Publication date: February 15, 2022

Issue: Terroir 2002

Type: Article

Authors

M. GARCIA (1); F. LAFFARGUE (2); E. BESNARD (3); H. IBRAHIM (1); A. CADET (1)

(1) Centre de Viticulture et d’Oenologie de Mid i-pyrénées -Avenue de l’Agrobiopole, 31320 Auzeville Tolosane
(2) Maison du Vin de Cahors- 430, Av J. Jaurès, B.P. 199,46004 CAHORS Cedex
(3) Chambre Régionale Agriculture des Pays de la Loire – 61, Avenue J. Joxé- BP 325, 49003 Angers Cedex 01

Keywords

terroir, qualité des vins, nutrition minérale, Cahors, Cot ou Malbec
terroir, quality of wine, plant nutrition, Cahors , Cot or Malbec

Tags

IVES Conference Series | Terroir 2002

Citation

Related articles…

Actual challenges and the need to produce alternative products from red grapes rich in phenols and antioxidants

The global consumption of wine has undergone significant changes after several years of covid-19, which was the beginning of a global crisis of the current century. This pushed some people to start looking for comfort and security as they felt that the world around them was losing these benefits. In most cases, this has led to them to idea of rethinking their lives in an attempt to live better or continuing to stay true to their habits and lifestyles despite the pressure of changes. Alcohol in any form is a part of these reactions, leading to increased consumption in the early stages of a crisis, particularly in relation to anxiety.

Carbon sequestration in vineyard soils: biomass utilization in a climate change scenario–the SUSTAIN project

The SUSTAIN project aims at assessing the soil organic carbon (SOC) stock and vulnerability in vineyard soils under a climate change scenario.

An overview of wine sensory characterization: from classical descriptive analysis to the emergence of novel profiling techniques

The wine industry requires coexistence between tradition and innovation to meet consumers’ preferences. Sensory science allows the objective quantification of consumers’ understanding of a product and subjective feedback of consumer’s perception through acceptance or rejection of stimulus or even describing emotions evoked [1]. To measure sensations, emotions and liking, and their dynamics over time, time-intensity methods are crucial tools with growing interest in sensory science [2].

Soil or geology? And what’s the difference? Some observations from the New World

Observational historical geology seeks to establish the evolutionary history of the surface of Earth. This approach is applicable not only to bedrock, but to the soft material that lies at the surface, the stuff called soil by most people. The geologic perspective provides a view of this material that is quite different from that of soil science, at least as practiced by many in America.

Switch genes as a key to understand the grapevine ripening disorder berry Shrivel?

The ripening of grapevine berries encompasses complex morphological and physiological processes, especially at veraison. Berry shrivel (BS) is a ripening physiological disorder affecting grape berries with visible symptoms appearing short after veraison. The main symptoms of BS are a strong reduction in sugar accumulation, inhibited anthocyanin biosynthesis and high pH values. The most popular red grape cultivar in Austria “Blauer Zweigelt” (Vitis vinifera L.) is specifically prone to develop the BS ripening disorder and up to date a no specific cause or causes could be identified. Recently omics approaches have identified and characterized key processes during grapevine ripening. Among them a small subset of genes, called SWITCH, have been described as markers for the onset of the ripening process in fruits.