Terroir 2010 banner
IVES 9 IVES Conference Series 9 Design of an indicator of vine vigor potential conferred by soil (vipos), using a fuzzy expert system

Design of an indicator of vine vigor potential conferred by soil (vipos), using a fuzzy expert system

Abstract

Winegrowers must adapt more and more their viticultural practices in order to evolve toward a sustainable viticulture, to be competitive and to improve both the production methods and the quality and typicalness of wines. In this context, ‘Terroir’ studies in Loire Valley vineyards have allowed to build decision aid maps that can be used directly by growers to adjust their practices. We focus here on the vigor potential conferred by soil (VIPOS) that especially allows adapting the choice of the rootstock. An algorithm had previously been proposed by Morlat (2001) to estimate VIPOS according to three main influencing variables: water holding capacity of the soil, gravel percentage on the soil profile and parent rock hardness. Nevertheless, the VIPOS estimation, based on this algorithm, had to be completed by expertise. The objective of the paper is to present a new method to estimate VIPOS using a fuzzy expert system that allows having an automatically continuous estimation.

DOI:

Publication date: October 6, 2020

Issue: Terroir 2010

Type: Article

Authors

Coulon Cécile (1), Rioux Dominique (2), Guillaume Serge (3), Charnomordic Brigitte (4), Gérard Barbeau (1), Thiollet-Scholtus Marie(1)

(1) INRA UE1117, UMT Vinitera, 49071 Beaucouzé, France
(2) Cellule Terroirs Viticoles, UMT Vinitera, 49071 Beaucouzé, France
(3) Cemagref, UMR ITAP, 34196 Montpellier, France
(4) INRA Supagro, UMR MISTEA, 34060 Montpellier, France

Contact the author

Keywords

Vine vigor – Fuzzy expert system – Soil characteristics – Decision aid maps

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

The colour pattern of flower arrangements influence wine tasters’ sensory description

The arrangements of flowers and wine counterparts are inextricably linked. Whether a fundamental aspect of tablescaping or acolytes to broader entertainment rituals, they have an entangled history since ancient times. The aim of this contribution is to verify the influence of visually delicate and robust flower arrangements on individual description of wines. Changes in the sensory description of wines were investigated during subjects’ (thirty-two participants) exposure to three different conditions: the presence of delicate, robust, or totally absent flower arrangements.

Delimitation of Saint-Bris AOC: example of reasonning delimitation criteria from production customs

La définition de l’Appellation d’Origine précise que les caractères du produit doivent être dus au milieu géographique, celui-ci intégrant des facteurs naturels et humains.

Physical-chemical characterization of Moscatel de Setúbal fortified wines from different vintages

Moscatel de Setúbal is a Portuguese fortified wine with Protected Designation of Origin (PDO Setúbal), made from Moscatel de Setúbal grape variety (Muscat of Alexandria) [1].

Influenza del sito di coltivazione nella espressione aromatica del Moscato liquoroso di Pantelleria

ln 1997, twenty six cultivation sites of cv. Muscat of Alexandria different for pedological conditions, altitude and exposition were selected through ail Pantelleria isle. ln each site, described and classified according to USDA Soil Taxonony and FAO Soil Classification methods, grapes, collected at technological ripening, were microvinificated, following a standard procedure which allowed to obtain the naturally sweet wine DOC Moscato di Pantelleria. Wines, five months after vinification, were analysed by gaschromatography.

Effects of Non-Grape Materials (MOG) on wine quercetin composition: insights from synthetic and Merlot grape juice fermentation

Quercetin precipitation has become an increasingly common issue in red wine, often resulting in visually unpleasant sediments and diminished product quality.