Terroir 2008 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2008 9 Climate component of terroir 9 Relationships between the Fregoni bioclimatic index (IF) and wine quality

Relationships between the Fregoni bioclimatic index (IF) and wine quality

Abstract

The Fregoni bioclimatic index (IF) considers the daily temperature range during the ripening month and the number of days with temperature below 10°C. The world areas characterized by large daily temperature ranges produce, as a rule, great wines, like for example Napa and Sonoma valleys in California, Chile and the Cape province in South Africa. A worldwide survey was carried out in order to assess correlations between the IF and the wine quality. The wine quality, for the same wine type during different vintage years, was expressed as hedonic evaluation (by a score up to 100). Spain, Switzerland, Germany, Romania, Canada, Chile and South Africa were investigated. The IF (vintages 2000-2005) ranged from 300 to 4,000 in the Valencia region, while in Navarra (vintages 1996-2005) from 300 to 3,400. In Germany the IF (vintages 1996-2005) ranged from 300 to 6,500, in Switzerland from 1,300 to 10,800, in Romania (vintages 1990 – 2005) from 200 to 7,000, in Canada (vintages 1996-2005) from 300 to 2,000, in Chile (vintages from 1999 to 2004) from 7,600 to 16,200, in South Africa (vintages 1994-2002) from 260 to 470. In cool climate countries like Germany and Switzerland, the best vintages corresponded to intermediate IF values (2,000-3,000, in Germany, and 5,000-6,000 in Switzerland), while in a warmer country like South Africa the best vintages corresponded, as a rule, to the highest IF (400).

DOI:

Publication date: December 8, 2021

Issue: Terroir 2008

Type: Article

Authors

Luigi BAVARESCO, Silvia PEZZUTTO, Matteo GATTI, Mario FREGONI

Istituto di Frutti-Viticoltura, Università Cattolica S. Cuore, I-29100 Piacenza, Italia

Contact the author

Keywords

temperature, ripening, wine quality, climate

Tags

IVES Conference Series | Terroir 2008

Citation

Related articles…

Improvement of the red wine AOC Grignolino d’Asti typicality using some technological innovations

L’AOC Grignolino d’Asti (20000 hl environ de production) est un vin de la province de Asti, produit avec le raisin rouge du cépage de même nom originaire du Piémont (Nord-Ouest d’Italie).

Electrochemical diversity of italian white wines

Analysis of phenolic compounds typically involve spectrophotometric methods as well as liquid chromatography combined with DAD, fluorimetric, or MS detection. However, the complexity of wine phenolic composition generated, in recent years, attention towards other analytical approaches, including those allowing rapid and inexpensive operations. Voltametric AIM Oxidation of white wine phenolics occurs at different stages during winemaking and storage and can have important implications for wine sensory quality. Phenolic compounds, in particular those with a ortho-diphenol moiety, are main target of oxidation in wine. Strategies for the methods are particularly suited for the analysis of oxidizable compounds such as phenolics. The redox-active species can be oxidized and reduced at the electrode, therefore, applications of electrochemistry have been developed both to quantify such species, and to probe wine maturation processes.3 The project on the diversity of Italian wines aims at collecting and analysing large-scale compositional dataset related to Italian white wines.

Water status response of Vitis vinifera L. cv Cabernet-Sauvignon during the first years within the long-term VineyardFACE (Free Air Carbon dioxide Enrichment) study

Understanding the water-use responses of grapevines to increasing atmospheric carbon dioxide concentrations is mandatory when assessing the impact of climate change on viticulture as it is a critical part of the adaptation process.

Les terroirs : variae causarum figurae

The jurist feels like an intruder when talking about terroirs. He looks at the press and tries to understand. We can read there about the cooking festival of May 30, 1996 which “..highlights products whose quality depends on a region”, that Camembert du pays d’Auge is the only one to be protected, I was thinking of camembert from Normandy, that 80% of Greek feta is made in the Netherlands, I thought it was in Denmark, and that the European Community protects geographical indications of IGP origin, probably a new category replacing the indications protected areas (1). I also learned that distributors are asking for more local products because “they come to confuse the cards in the part engaged with the big brands”. Carrefour has its “Terroirs and drawers”, Prisunic its “Vent d’Ouest”, Intermarché “Les bouquets du terroir”, Monoprix “Les terroirs de France” (2), Promodés and its brand “Reflets de France” for the “Continent” hypermarkets (3). At the same time it is asserted that “The term is a mere common noun. Unprotectable and therefore unprotected” (4).

Bilan hydrique: une méthode proposée pour l’évaluation des réserves hydriques dans le zonage viticole

Dans le zonage viticole mis en place dans la province de Taranto, on a introduit la méthode du bilan hydrique pour évaluer les réserves hydriques dans les 8 zones déterminées