Terroir 2006 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2006 9 Integrated approach in terroir studies (Terroir 2006) 9 Study of the “Charentes terroir” for wine production of Merlot and Sauvignon: method, installation of the experimental device, first results

Study of the “Charentes terroir” for wine production of Merlot and Sauvignon: method, installation of the experimental device, first results

Abstract

Cognac vineyard is mainly dedicated to brandy production. Within the vineyard restructuring context, one part is turned over wine varieties for wine production (about 1,500 ha planted from 1999 to 2005). Today, the new wine producers need technical references about qualitative potential of the « Charentes Terroir », varieties and adapted vineyard management. In order to answer to this professional request, an observatory of 18 plots of Merlot and 12 plots of Sauvignon have been laid out since 2003 and 2004 on various kinds of pedoclimate. They have common agronomical characteristics, as plantation spacing (3,800 to 5,000 vines per ha), age (plantation from 1998 to 2001), strength and earliness conferred by the rootstocks, soil management and trellising (« guyot double » pruning). A pedological and roots description, analysis of the different horizons and a water reserves evaluation have been made to characterize the soils. A synthetic pedological plots study validates the experimental device as a representative sample of the agro-pedological vineyard diversity.
Vine behaviour and oenological potential of each plot is studied: phenological stages, growth stop, canopy area, maturity controls, Delta C13. More, the technical team controls the yield by pruning, desuckering and green harvests. Harvest from each plot is vinificated according to a standard protocol. An expert panel tastes wines.
First results show an important climate effect on the west part of the vineyard and an earliness differential for phenological stages and ripeness. However, 3 years of results are too short to conclude definitely because millesime effect is important for the years 2003 to 2005. Thus, one or two more years’ observations will complete this work and several methods of vineyard management will increase the experimentation. The aim is to adapt the wine production to the « terroir » potential.

DOI:

Publication date: December 22, 2021

Issue: Terroir 2006

Type: Article

Authors

Marie DESCOTIS (1), Magdalena GIRARD (2), Laura MORNET (3), David LANTHIOME (1), Laetitia CAILLAUD (2), Catherine CAM (4)

(1) ITV France, Antenne de Segonzac, 15 rue Pierre Viala, 16130 Segonzac, France
(2) Chambre d’Agriculture de Charente-Maritime, 3 bd Vladimir, 17100 Saintes, France
(3) Chambre d’Agriculture de Charente, 25 rue de Cagouillet, 16100 Cognac, France
(4) Chambre Régionale d’Agriculture Poitou-Charentes, BP 50002, 86550 Mignaloux-Beauvoir, France

Keywords

terroir, soil, pedoclimate, Charentes, Merlot, Sauvignon

Tags

IVES Conference Series | Terroir 2006

Citation

Related articles…

Zeowine: the synergy of zeolite and compost. Effects on vine physiology and grape quality

The trial aims to improve the protection and management of the soil, the well-being of the plant and the quality of production in the wine supply chain organic and biodynamic, using an innovative product “ZEOWINE” resulting from the composting of waste of the wine and zeolite supply chain.

Deciphering the color of rosé wines using polyphenol targeted metabolomics

The color of rosés wines is extremely diverse and a key element in their marketing. It is due to the presence of red anthocyanins extracted from grape skins and pigments formed from them and other wine constituents during wine-making.

Mapping and tracking canopy size with VitiCanopy

Understanding vineyard variability to target management strategies, apply inputs efficiently and deliver consistent grape quality to the winery is essential. However, despite inherent vineyard variability, the majority are managed as if they are uniform. VitiCanopy is a simple, grower-friendly tool for precision/digital viticulture that allows users to collect and interpret objective spatial information about vineyard performance. After four years of field and market research, an upgraded VitiCanopy has been created to achieve a more streamlined, technology-assisted vine monitoring tool that provides users with a set of superior new features, which could significantly improve the way users monitor their grapevines. These new features include:
• New user interface
• User authentication
• Batch analysis of multiple images
• Ease the learning curve through enhanced help features
• Reporting via the creation of colour maps that will allow users to assess the spatial differences in canopies within a vineyard.
Use-case examples are presented to demonstrate the quantification and mapping of vineyard variability through objective canopy measurements, ground-truthing of remotely sensed measurements, monitoring of crop conditions, implementation of disease and water management decisions as well as creating a history of each site to forecast quality. This intelligent tool allows users to manage grapevines and make informed management choices to achieve the desired production targets and remain profitable.

Water use efficiency of Chardonnay under different grafting combinations in the viticultural area of Franciacorta

Drought poses a challenge to future viticulture, exacerbated by climate change, which increases the frequency and severity of water shortages.

PROFILING OF LIPIDS IN WINES FROM MONOCULTURE FERMENTATION WITH INDIGENOUS METSCHNIKOWIA YEAST SPECIES

Lipids are a diverse group of organic compounds essential for living systems. They are vital compounds for yeast which makes them an important modulator of yeast metabolism in alcoholic fermentation. This study presents a comprehensive lipidome analysis of wine samples from the Vitis vinifera L., Maraština. The fermentation trails were set up in monoculture with different indigenous yeast strains selected from a collection of native yeasts established at the Institute for Adriatic Crops and Karst Reclamation in 2021, previously isolated from Croatian Maraština grapes: Metschnikowia pulcherrima, Metshnikowia sinensis/shanxiensis , and Metschnikowia chyrsoperlae.