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…

Heat berry: the influence of abiotic factors on the composition of berries, must and wine in Vitis vinifera L. CV Riesling

Recurring heat and drought episodes during the growing season can produce adverse impacts on grape production in many wine regions around the world.

Screening sensory-directed methodology for the selection of non-saccharomyces wine yeasts based on perceived aroma quality

The present work contributes by developing a rapid sensory-directed methodology for the screening and selection of high quality wines with different sensory profiles Therefore, Verdejo and Tempranillo musts were fermented with 50 different yeasts each under controlled laboratory conditions. Resulting samples were firstly categorized according to five levels of quality by a panel of wine professionals (Sáenz-Navajas, Ballester et al. 2013). Higher quality samples were described by flash profiling by a semi-trained panel
(Valentin, Chollet et al. 2012) and most distinctive samples were screened by gas chromatography-olfactometry (GC-O) (López, Aznar et al. 2002).

Valutazione comparativa di cloni di Pinot nero per la produzione di vini base spumante in alcuni ambienti del Piemonte

Un vasto programma si riferisce alla verifica di 28 selezioni clonali di Pinot nero atte a vini base spumante. Gli impianti sono stati realizzati in diversi ambienti delle Langhe e del Monferrato nel periodo 1992-1996, in 57 vigneti diversi e su una superficie complessiva di circa 50 Ha.

Successive surveys to define practices and decision process of winegrowers to produce “Vins de Pays Charentais” in the Cognac firewater vineyard area

Le vin est un des produits finis que l’on obtient à partir de raisins. La vigne réagit à de nombreux facteurs environnementaux et son comportement est directement influencé par les pratiques culturales

Selecting varieties best adapted to current and future climate conditions based on ripening traits

Aim: The aim of this study was to quantify key berry sugar accumulation traits and characterize their plasticity in response to climate variation from data collected from different cultivars over seven years from an experimental vineyard.