Terroir 2004 banner
IVES 9 IVES Conference Series 9 Méthodologie pour application et valorisation des études de terroir dans les caves cooperatives des Côtes du Rhône (France)

Méthodologie pour application et valorisation des études de terroir dans les caves cooperatives des Côtes du Rhône (France)

Abstract

[English version below]

L’appellation d’origine contrôlée “Côtes du Rhône” se caractérise par une très forte implantation du mouvement coopératif. Afin de mieux exploiter le potentiel qualitatif de leurs terroirs, plusieurs coopératives élaborent des “cuvées terroir”, résultat des sélections de vendanges provenant de différents secteurs.
Le travail répond à la demande des professionnels pour approfondir la connaissance de la diversité de leurs terroirs, pour évaluer leur incidence sur la matière première et pour établir une démarche permettant de mieux gérer les sélections parcellaires.
La méthodologie proposée se déroule en trois étapes :
I. Caractérisation de la diversité des terroirs au sein d’une cave coopérative : cartographie des sols.
II. Evaluation du fonctionnement, essentiellement hydrique, des principaux sols et de leur incidence sur le comportement de la vigne et sur la composition du raisin. L’objectif est de dégager des indicateurs simples pour caractériser cette incidence.
III. Application pour les sélections “terroir” : ces outils sont testés ensuite pour la mise en place d’une sélection parcellaire au niveau de la cave.
Cette démarche a été appliquée sur différentes caves. A titre d’exemple, nous illustrerons cet article avec les résultats obtenus pour la cave de Rochefort du Gard.
La méthode présentée débute avec une étude de zonage. Elle se complète ensuite par une évaluation du potentiel de différentes unités de sol et, enfin, donne lieu à une application pratique pour améliorer la gestion des sélections de vendange dans un contexte professionnel bien précis, celui des caves coopératives.

Most of the “Côtes du Rhône” controlled appellation wine is produced by cooperative wineries. In order to make the best use of the qualitative potential of their “terroirs”, several cooperative wineries produce specific “cuvees terroir” with harvest selections from different districts.
This work is an answer to professionals’ needs to enhance the knowledge of their “terroirs” diversity, to evaluate their effects on grape berry composition and to work out a methodology to improve the management of harvest selections.
The proposed methodology is developed in 3 stages :
I. Characterisation of “terroirs” diversity of a cooperative winery area : maps of the soils.
II. Evaluation of the way the most important soils function, essentially for water and of the influence on vine behaviour and on grape berries composition. The aim is to look for simple tests explaining this influence.
III. Application to “terroir” harvest selections : the tests are then tried out to set up a harvest selection in the winery.
The methodology is applied to different cooperative wineries. In this paper we will show, as an example, the results from the Rochefort du Gard winery.
The proposed method starts off with a zoning study. It is then completed by an evaluation of potential quality of different kinds of soils and finally, it leads to practical application in order to enhance management of harvest selections in a quite precise professional context, which is that of cooperative wineries.

DOI:

Publication date: January 12, 2022

Issue: Terroir 2004

Type: Article

Authors

B. Rodriguez Lovelle (1); F. Fabre (2)

Syndicat Général des Vignerons des Côtes du Rhône
1) Institut Rhodanien, 2260 Rte. du Grès, 84100 Orange (France)
2) Maison des Vins, 6 rue des Trois Faucons, 84000 Avignon (France)

Contact the author

Keywords

Terroir, cartographie, méthodologie pratique, cave coopérative, propriétés du sol, disponibilité hydrique, qualité du raisin, sélection des vendanges
terroir, mapping, practical methodology, cooperative winery, soil properties, water availability, grape quality, harvest selection

Tags

IVES Conference Series | Terroir 2004

Citation

Related articles…

Cumulative effects of repeated drought stress on berry composition, and phenolic profile: Field experiment insights

Drought stress has a profound impact on grapevine productivity and significantly alters key quality-related traits of berries. Although research has been conducted on the effects of individual drought events, there is still a knowledge gap regarding the cumulative consequences of repeated exposure to water scarcity and the influence of the timing of stress imposition. To address this gap, a field experiment was conducted to investigate the impacts of repeated drought stress on yield, berry composition, and the phenolic profile of grape berries. The results indicate that yield is primarily influenced by pre-veraison water deficit. Although the number of clusters was only slightly reduced, a substantial decrease in berry size was observed, resulting in a notable reduction in overall yield.

Characterization of berry softening and sugar accumulation dynamics in a slow-ripening genotype and its response to abscisic acid treatments

In the current viticultural context, global warming leads to advanced and possibly accelerated ripening which can alter the balance among desirable grape quality traits sought for winemaking. Evaluation of genetic material that displays delayed and/or slower ripening could uncover a potential “slow ripening” trait for incorporation into commercial varieties through breeding. In this study, we evaluated a white-fruited selection discovered in the Grape Breeding and Genetics program at E. & J. Gallo Winery that displayed an unusual ripening pattern compared to standard varieties. Vines of the slow-ripening selection did not differ in their visual appearance, water status or gas exchange characteristics compared to vines of its normal-ripening sibling.

The weak role of organic mulches in shaping bacterial communities in grapevine

The interest in sustainable and ecologic agricultural practices in grapevine has grown significantly in recent years in the context of ecological transition. Organic mulches are treatments that support the circular economy and positively affect the soil and the plant. They are an alternative to herbicides and other conventional practices since they may influence soil moisture, erosion, structure and weed control. However, their effects on the soil and must microbiota remain unknown.

Enhancing vineyard resilience: evaluating sustainable practices in the Douro demarcated region

In mediterranean agriculture, sustainability and productivity are seriously threatened by climate change and water scarcity. This situation is exacerbated by poor management practices such as excessive use of agrochemicals, overgrazing, and monoculture. The Douro demarcated region (ddr) is an emblematic region, classified world heritage site by UNESCO in 2001. Viticulture is the main agricultural activity in DDR, widely known to produce port wine.

Use of membrane ultrafiltration technology to achieve protein stabilisation of white wine

AIM: Proteins in white wine can cause cloudiness or haze after bottling, which consumers may consider an indicator of poor quality. . As a consequence, winemakers often use bentonite, a clay-based material that binds protein, to remove proteins and achieve protein stabilisation. However, removing bentonite from wine after treatment can result in a 3-10% loss of wine (1)…