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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


[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.


Publication date: February 15, 2022

Issue: Terroir 2002

Type: Article



(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


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


IVES Conference Series | Terroir 2002


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