Yearly Archives: 2020

Development of a GRASS-GIS application for the characterization of vineyards in the province of Trento

The physical factors that influence the grape ripening include elevation, slope, aspect, potential global radiation, sun hours and soil type of the vineyards. Many of these features could be derived from Digital Elevation Models (DEM), using Geographic Information Systems (GIS). There are several commercial and open-source GIS-applications available and also the geodata are continuously increasing […]

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Use of hyperspectral data for assessing vineyard biophysical and quality parameters in northern Italy

A total of 39 study sites from 11 commercial vineyards located in two traditional growing areas of Northern Italy were identified for airborne hyperspectral acquisition in summer 2009 with the Aisa-EAGLE Airborne Hyperspectral Imaging Sensor.Field sampling campaigns were conducted during the airborne overflights and around harvest, collecting canopy structural parameters, leaf and canopy biophysical characteristics […]

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A multivariate clustering approach for a gis based territorial characterization of the montepulciano d’abruzzo DOCG “Colline Teramane”

The aim of the project was to characterize the Premium Denomination of Guaranteed Origin (DOCG) “Colline Teramane” wine-growing region and to delineate and define homogeneous zones (terroir units) within it, by applying a multivariate clustering approach combined with geomatics. The inventory, characterization and classification of the land resources included components of climate (temperature and rainfall […]

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Validation of phenological models for grapevine in the Veneto region

In this study we have compared the predictive ability of two phenological models: a traditional Thermal Time (TT) and a version of the more recently develop Unified Model (UM). Unlike TT, which quantifies the accumulation of heat units which trigger bud break and the subsequent development phases, the UM describes also the fulfilment of chilling […]

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Différenciation de parcelles de Chenin du Val de Loire, a l’aide de l’etude des flores fongiques des raisins, en utilisant l’outil DGGE

Depuis le millésime 2002, une étude est menée sur la diversité de la flore fongique de parcelles du cépage chenin, situées essentiellement sur les appellations de Vouvray et Montlouis ; deux appellations séparées par le fleuve nommé la Loire. Les parcelles se situent dans des conditions pédoclimatiques différentes, qui se retrouvent au travers des suivis […]

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Grape variety identification and detection of terroir effects from satellite images

Satellite images are used to determine the reflectance dependency to wavelength in different grape varieties (Cabernet-Sauvignon, Merlot, Pinot Noir, and Chardonnay). The terroir influence is investigated through study of vineyards in France, Brazil and Chile. Statistical techniques (ANOVA, cluster and discriminant analysis) are applied. Results indicate that there are consistent spectral features, mainly in the […]

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IVES Science meeting 2021

The next IVES science meeting should be held from 3 to 4 February 2021 in Bordeaux (Institut des sciences de la vigne et du vin and Château Brane Cantenac). We hope to be able to meet many of you in 2021 in person! We will come back to you very soon with more information regarding the organisation. Above, a souvenir of 2020! […]

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Etude des effets millésime, situation et sol à partir d’un observatoire du Gamay en beaujolais

Des expérimentations sur Gamay ont été réalisées en Beaujolais de 2000 à 2006 sur 10 parcelles d’AOC différentes. De nombreuses mesures ont été effectuées à différents stades (vigne, baies récoltées, vinification et bouteille avec ou sans vieillissement). Ces mesures sont également de natures différentes (données phénologiques, analytiques, dégustation). Des analyses de la composition des sols […]

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La haie bocagère comme critère de zonage à l’échelle parcellaire

Dans les AOC Française, la zone de production de la matière première peut faire l’objet d’une délimitation parcellaire basée sur des critères de milieu physique et d’usage D’autre part de nombreux zonages environnementaux se développent et les AOC sont appelées à intégrer des dispositions relatives à ces préoccupations. Les haies, à travers leurs effets sur […]

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Studio dell’ambiente viticolo attraverso la parametrazione (punto di incrocio) delle curve di maturazione delle uve (pinot nero, oltrepo’ pavese pv italia settentrionale – 45° parallelo Nord)

Sono stati presi in considerazione alcuni dati agrometeorologici dell’Oltrepò Pavese (temperature e piovosità degli ultimi 80 anni) e gli studi delle curve di maturazione condotti in zona sul Pinot nero da spumante negli anni (1988-1991, 1999-2000, 2006-2008), si nota che l’aumento progressivo negli anni delle temperature attive (indice di Winkler) ha determinato un anticipo dell’invaiatura, […]

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