Terroir 1996 banner
IVES 9 IVES Conference Series 9 Evaluation of viticultural suitability of Arezzo Province (Tuscany)

Evaluation of viticultural suitability of Arezzo Province (Tuscany)

Abstract

Dans une région comme la Toscane, zone dans laquelle sont produits certains des meilleurs vins italiens et du monde, la province d’Arezzo a actuellement une importance relativement marginale. Il a été entrepris une étude de zonage viticole pour caractériser les productions et pour comprendre le potentiel du territoire.
Grâce à une étude pédologique il a été possible de caractériser le territoire en «unités» de paysage dans lesquelles il a été choisi une parcelle témoin. Le cépage utilisé majoritairement pour l’étude est l’autochtone Sangiovese; auquel il a été aussi ajouté quelques vignes de Merlot et Cabernet-Sauvignon pour étudier leur adaptabilité au territoire de la province.
L’étude du climat a été effectuée en utilisant les données des dix dernières années de différentes localités de la province. Les données récoltées ont été analysées avec les indices climatiques les plus communs pmr caractériser les différents milieu en relation avec la viticulture.
Pour chacune des 40 parcelles, il a été réalisé des courbes de maturation et pour la vendange il a été récolté des données sur la croissance, la production et la qualité; de plus sur un échantillon de raisin il a été effectué des microvinifications. Les vins obtenus ont été analysés chimiquement et sensoriellement pour estimer l’influence de l’environnement sur les caractéristiques du raisin et du vin.
Grâce à l’élaboration des données, il a été mis en évidence des différences sur les courbes de maturation, sur les données productives et qualitatives et sur l’analyse chimique et sensorielle des vins par microvinification.
Ainsi il a été possible de subdiviser dans une première phase le territoire provincial en quatre macrozone ayant des caractéristiques propres: Casentino, Val d’Ambra, Val di Chiana et Valdamo.

In a region like Tuscany, place in which some of the best Italian and world-wide red wines are produced, the Province of Arezzo has at the present a relatively marginal importance. A study for a viticultural zoning has been decided in order to characterise the productions and to know the capacity of the territory.
By a pedological survey it was possible to characterise the territory in Landscape Units in which the choice of the vineyards were made. The variety mainly used for the study was the autochthonous Sangiovese; beyond to this variety some vineyards of Merlot and Cabernet-Sauvignon have been characterised in order to estimate their suitability to the territory of the province.
The study of the climate has been realised using the data of the last ten years in different sites of the province. The collected data have been processed by the main climatic indices to characterise the different environment in relation to viticulture.
For everyone of the 40 vineyards maturation curves were executed and, at harvest, data of growth, yield and quality were surveyed; moreover on a sample of grape were made microvinificazions. The obtained wines chemically and sensorially analysed to estimate the environment influence on the characteristics of grape and wine.
Thanks to the data processing differences were evidenced in maturation curves, in productive and qualitative data and in sensorial and chemical analysis of wines obtained by microvinificazions. So it has been possible to subdivide, in a first stage, the provincial territory in four macrozones having peculiar characteristic: Casentino, Val d’Ambra, Val di Chiana and Valdarno.

DOI:

Publication date: February 15, 2022

Issue: Terroir 2002

Type: Article

Authors

TONINATO L., BRANCADORO L., PRIMA VERA F. and SCIENZA A.

*Università di Milano – Dipartimento di Produzione Vegetale, Via Celoria 2, 20133 Milano, Italy
** Ager Scri – Via Druso 10, 20133 Milano

Contact the author

Keywords

analyse sensorielle, courbes de maturation, indices climatiques, microvinification, Sangiovese
climatic indices, maturation curves, microvinifications, Sangiovese, sensorial analysis

Tags

IVES Conference Series | Terroir 2002

Citation

Related articles…

Modeling from functioning of a grape berry to the whole plant

Grape quality is a complex trait that mainly refers to berry chemical composition, including sugars, organic acids, phenolics, aroma and aroma precursor compounds.

Factors involved in the acumulation of acetic acid inside the grapes during winemaking by carbonic maceration

Vinification by carbonic maceration (CM) is based in the anaerobic fermentative metabolism also called intracellular fermentation (IF).

Varietal thiol precursors in Trebbiano di Lugana grape and must

Trebbiano di Lugana (TdL) is a white variety of Vitis vinifera mainly cultivated in an Italian area located south near Garda lake (Verona, north of Italy). This grape cultivar, also known as “Turbiana,” is used for the production of TdL wine with recognized Protected Designation of Origin whose volatile profile was recently determined [1]. The presence of varietal thiols in TdL, namely 3-mercaptohexan-1-ol and its acetate form, conferring the tropical and citrus notes, has been documented. Winemaking strategies were also described with the purpose of protecting and maintain these desired aromas [2]. To the best of our knowledge, the varietal thiol precursors (VTPs) were not previously determined in TdL grape and must. This study aimed to quantify VTPs in both grape during the ripening and must during the pressing. Volatile C6 compounds were also measured in the must fractions.

Terroir et marché : exemples de stratégie pour les vins d’une petite région (Muscadet – Anjou – Touraine)

The designations of origin of the Loire Valley wine have been recognized according to customs and notoriety established over the centuries since the Middle Ages. There are four main production basins going up the Loire, from Nantes to the Sancerrois region: Nantes, Anjou-Saumur, Touraine and the vineyards of the Centre. In each of these basins, there is a wide range of appellations of origin which has been established according to a logic which may not seem obvious to the uninformed.

Territorial delimitation of viticultural “Oltrepo Pavese (Lombardy)” using grape ripening precocity

L’Oltrepò Pavese est une zone de collines de la Lombardie, région située au nord de l’Italie avec un vignoble qui s’étend sur près de 15 000 ha. Cette zone représente la plus grande aire de production de la région et une des A.O.C. les plus étendues de tout le pays. Les cépages les plus cultivés, même historiquement, sont autochtones : la Barbera et la Croatina utilisés pour la production de vin rouge «Oltrepò» et le Pinot noir pour la production de vins mousseux. Pour le zonage viticole de cette A.O.C., il a été pris en considération: le climat, les sols, les caractéristiques viti-vinicoles.