Monthly Archives: October 2020

Relationships between berry quality and climatic variability in grapevine cultivars from Piedmont

A major topic in viticultural research is the analysis of the relationships between climate on one side, and grape and wine quality on the other. It is well known that climatic conditions have a high impact on growth and development of grapevine and consequently on yield and quality. In particular, wine quality is correlated with […]

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Influence of pedoclimatic factors during berry ripening in Burgundy

Berry composition at ripeness can be explained by many factors. This study was carried out from 2004 through 2011 in a 60 block network in the Yonne region, Burgundy. The impact of the main components of terroir – vintage, soil, exposition, topography, varietal, rootstock, age, density and vine management- were studied simultaneously, during berry ripening. […]

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Soil and Climate Interactions with Grapevines

To test the hypothesis that soil type plays a minor role relative to that of vine vigor in the determination of yield, fruit composition and wine sensory attributes, 5 Chardonnay vineyards in the Niagara Peninsula of Ontario were chosen for study. These vineyards were located on sites with heterogeneous soil types to allow study of […]

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Precision viticulture: using on-board sensors to map vine variability and characterize vine trajectories

Precision viticulture consists in using ICT (Information and Communication Technology) to implement more specific and better targeted technical vine practices. With proxy-detection, precision viticulture mobilizes on-board sensors, computers, and GNSS positioning. Three sensors were embedded on a tractor and tested on a plot with three champagne grape varieties. This plot is located at the Plumecoq […]

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Soil electrical resistivity measurement: from terroir characterization to within-field crop inputs management

Soil Electrical Resistivity measurement is a zoning tool used by soil scientists and agronomists in viticulture. Indeed, the measure enables to optimize pedological surveys (position and number of soil sampling) to obtain a very precise final soil map. Since 2007, Tutiac Winegrowers (Vignerons de Tutiac, Bordeaux) have decided to map all their vineyards (over 4000 […]

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Terroir effects on the response of Tempranillo grapevines to irrigation in four locations of Spain: grape and must composition

This work discusses the effects of soil and weather conditions on the grape composition of cv. Tempranillo in four different locations of Spain, during the 2008-2011 seasons. In all locations vines were pruned to a bilateral cordon, trained to VSP and under similar cultural practices. In three locations (Requena-east, Badajoz-west and Valladolid-northwest) a pre-veraison deficit […]

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Corvina and Corvinone grape berries grown in different areas and their aptitude to postharvest dehydration

The Valpolicella area (Veneto Region, Italy) is famous for its high quality wines: Amarone and Recioto, both obtained from partial post-harvest dehydrated red grapes. The main cultivars used for these wines are Corvina and Corvinone. In this region hundreds of years ago a particular wine making process was developed to dehydrate the grape after the […]

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Viticultural practices: past, present and future

Practices in viticulture have greatly evolved in the last five decades. There were three objectives: improvement in the quality of the products, reduction in the production costs through mechanization, and protection of the environment. In terms of soil management, the combination of different techniques such as soil tillage, chemical weeding and cover-cropping, allowed to reach […]

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Monitoring arthropods diversity in the “Costières de Nîmes” viticulture landscape

Biodiversity loss in agrosystems is partly due to landscape simplification (field enlargement, hedgerows removal…) that led to a loss of heterogeneity of the overall landscape. The aim of this study is to compare biodiversity of different habitats and landscape configurations in order to target strategic conservation actions and their locations in viticulture landscapes to improve […]

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Influence of the vintage, clone and rootstock on the chemical characteristics of Syrah tropical wines from Brazil

In the Northeast of Brazil, vines can produce twice a year, because annual average temperature is 26ºC, with high solar radiation and water availability for irrigation. Many cultivars have been tested according to their adaptation to the climate and soil, and the main variety used for red wines is Syrah. This work aimed to evaluate […]

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