Terroir 1996 banner
IVES 9 IVES Conference Series 9 Report on the work carried out by the zoning group of the O.I.V.

Report on the work carried out by the zoning group of the O.I.V.

Abstract

[English version below]

La création officielle du groupe Experts Zonage Vitivinicole à l’O.I.V., qui s’inscrit dans la Commission Viticulture, est récente. Le Professeur Mario FREGONI en assure la présidence depuis 1998, assisté du vice-président et du secrétaire général Mario FALCETTI. Ils ont été confirmés dans leurs fonctions lors des sessions de mars 2001. Actuellement, le groupe d’experts Zonage Vitivinicole de l’O.I.V. se compose de 40 délégués, représentant 18 pays membres. La mise en place de ce groupe a tout d’abord été initiée par l’Instituto Agrario de San Michele (Italie) et l’Unité de Recherches Vigne et Vin du Centre INRA d’Angers (France). Une collaboration entre les chercheurs s’est installée très tôt, dès 1987. Puis, celle-ci a été très largement encouragée lors de contacts établis par le Chargé de Mission de l’Ambassade R.S.A. en France, au près des diverses équipes qui travaillent sur le sujet (San Michele, Angers, Piacenza, Milan, Madrid), ainsi qu’avec la Direction Générale de l’Institut National des Appellations d’Origine de France. Tous les échanges ont conduit au 1er Colloque International sur les Terroirs Viticoles à Angers en 1996 avec une organisation bicéphale (URVV Angers et ISVV Montpellier). Une enquête de l’O.I.V. sur les travaux de zonage vitivinicole a été réalisée en 1997 et 1998 et les résultats restitués en 1999. Elle fait ressortir le nombre important d’études entreprises dans le monde, en France surtout, mais également en Italie. Trois congrès ont suivi : Sienne en 1998, Tenerife en 2000 et Avignon en 2002. Une des principales résolutions a été exprimée lors des conclusions du dernier congrès à Tenerife. Elle suggère de créer des groupes nationaux ayant pour objectif de faire le point, par pays, sur les dossiers “terroirs” et de réfléchir sur les méthodologies employées. Le souci majeur est de faire ressortir les éléments du milieu naturel qui concourent à l’originalité des vins d’une région, afin d’en expliciter les effets. L’objectif à atteindre est bien de préciser pour une région viticole donnée, les facteurs naturels qui génèrent « l’authenticité » par une prise en compte rationnelle de la variabilité induite par le couple génotype x milieu. De ce fait, la notion de «Terroir» devient un élément clé, mais il doit être précisé.

The official establishment of the group of experts of distribution in zones of OIV Vitiviniculture which arises from the Commission of vine growing – is recent. The professor Mario FREGONI is its present since 1998, and he has been re-elected during March 2001 meetings assisted of vice-president and company secretary Mario FALCETTI. Nowadays, the OIV Vitiviniculture Zoning Expert Group is composed by 40 delegates, representing 18 member countries. The creation of this group has been initiated by the Instituto Agrario of San Michele (Italy) and Unité de Recherches Vigne et Vin of INRA centre of Angers (France). Collaboration between the researchers has been installed since 1987. The responsible of the Embassy of R.S.A. in France has been establishing contacts with the several teams (San Michele, Angers, Piacenza, Milan, Madrid) that work on the matter and with the General Direction of Institut National des Appellations d’Origine (INAO), France. All the exchanges have led to the, First International conference on the Terroir at Angers in 1996, organized by URVV Angers and ISVV Montpellier. An OIV enquiry on the vitiviniculture zoning works was realized in 97 and 98 and the results published in 99. It shows the important number of undertaken studies in the world, especially in France, but also in Italy. Three congresses followed: Siena in 1998, Tenerife in 2000 and Avignon in 2002. One of the main resolutions approved at the end of the last meeting, Tenerife 2000, suggests creating national groups with the objective to define, per country, the «Terroir » files and to reflect upon the used methodologies. The major issue is to show the elements of the natural environment that contributes to the originality of the wines of a region as to show its influences. The aim is to describe for a specific viticultural region the natural factors that generate the « authenticity » through taking rationally into account the variability induced by interaction between genotype and environment. As such, the notion of «Terroir » becomes a key element, but needs to be précised.

DOI:

Publication date: February 15, 2022

Issue: Terroir 2002

Type: Article

Authors

ASSELIN Christian

INRA UVV – 42 rue Georges Morel – 49070 BEAUCOUZE

Tags

IVES Conference Series | Terroir 2002

Citation

Related articles…

Green pruning of shoots to force new sprouting of buds, in fruit set and in pea size: vegetative, productive and maturation effects, in cv. Verdejo

The context of climate crisis leads to the acceleration of technological ripening of grapes, with unsuitable loss of acidity, so various vineyard management alternatives are being considered to delay the grape ripening. The delay of the vegetative cycle towards a period of milder temperatures affects ripening, but vine behavior can vary according to the area, conduction, watering, variety, etc. A work is proposed to know the response to the green pruning of shoots, executed in fruit set and in pea size, in cv. Verdejo.

IDENTIFYING POTENTIAL CHEMICAL MARKERS RESPONSIBLE FOR THE PERMISSIVENESS OF BORDEAUX RED WINES AGAINST BRETTANOMYCES BRUXELLENSIS USING UNTARGETED METABOLOMICS

All along the red winemaking process, many microorganisms develop in wine, some being beneficial and essential, others being feared spoilers. One of the most feared microbial enemy of wine all around the world is Brettanomyces bruxellensis. Indeed, in red wines, this yeast produces volatile phenols, molecules associated with a flavor described as “horse sweat”, “burnt plastic” or “leather”. To produce significant and detectable concentrations of these undesired molecules, the yeasts should first grow and become numerous enough. Even if the genetic group of the strain present and the cellar temperature may modulate the yeast growth rate¹ and thus the risk of spoilage, the main factor seems to be the wines themselves, some being much more permissive to B. bruxellensis development than others.

Evaluation of field inoculation of Kocuria rhizophila and Streptomyces violaceoruber as biostimulants under water availability conditions in grapevines

Agricultural productivity must promote management systems that incorporate sustainability principles, and viticulture is no exception.

Impact of canopy management on thiol precursors in white grapes: a six-year field study

The mechanisms behind thiol precursor accumulation in grapes remain incompletely understood, nor are the ways in which they can be improved by agronomic practices. A six-year field trial studied the physiological response of the Swiss white cultivar Vitis vinifera Arvine, rich in varietal thiols and precursors, to canopy management, i.e. leaf removal and canopy height.. Five treatments were set up in a randomized block design to assess the impacts of 1) pre-flowering LR (i.e. pre-flowering or full-flowering stages) and 2) compensating for the leaf area removed in the cluster zone by increasing the trimming height (i.e. 100 or 150 cm canopy height), compared with a non-defoliated control treatment.
Intensive pre-flowering LR severely reduced yield potential (–47% on average) and reduced the concentration of 3-mercaptohexanol precursors (P-3MH) in the must (–21%; p-value < 0.10).

Spectral characterisation of fungal diseases on Vitis vinifera leaves

Aims: The aims of this study were to (1) detect alterations in the reflectance spectra of vines with fungal diseases, (2) map these alterations, and (3) determine the best wavelengths which may be used as early indicators of fungal diseases in vines.