Terroir 1996 banner
IVES 9 IVES Conference Series 9 Extension to the Saumurois-Touraine area of an Anjou-originated method for the characterisation of the viticultural terroirs. (Loire Valley, France)

Extension to the Saumurois-Touraine area of an Anjou-originated method for the characterisation of the viticultural terroirs. (Loire Valley, France)

Abstract

[English version below]

En Anjou, une méthode de caractérisation des terroirs viticoles a été développée. Elle utilise un modèle de terrain basé sur la profondeur de sol et son degré d’argilisation. Le modèle concerne des terrains issus principalement de roches mères métamorphiques et éruptives du Massif Armoricain. Cet outil de caractérisation des terroirs viticoles nécessite d’être adapté lorsqu’il s’agit d’ensembles géologiques très différents, en particulier sur sols d’apport et de roches mères tendres et poreuses du Bassin Parisien. Une meilleure compréhension de la réserve hydrique des sols apparaît être un critère important de l’interaction entre le milieu et la plante. Afin de mener à bien cette expérimentation, un réseau de parcelles d’étude a été mis en place sur cinq appellations d’origine contrôlée de la moyenne Vallée de la Loire.

In Anjou, a method for the characterisation of the viticultural terroirs has been developed. It uses a terrain model based on the depth of the soil and its clay content. The model applies to soils derived from metamorphic and igneous bed-rocks belonging to the Armorican Range. This tool for terroir characterisation needs to be adapted to different geologic systems, in particular to soils resting on soft and porous sedimentary bed-rocks belonging to the Parisian Basin. A better understanding of the water supply regime seems to be an important criteria of the interaction between the environment and the vine. To achieve this goal, a multisite network was established on five Appellations of Controlled Origin (A.O.C.) in the Mid-Loire valley.

DOI:

Publication date: February 15, 2022

Issue: Terroir 2002

Type: Article

Authors

Nicolas BOTTOIS (1), Elisabeth BESNARD (2), Etienne GOULET (2), Dominique RIOUX (2), Sébastien CESBRON (2), Adélaïde PALLUAU (2), Gérard BARBEAU (1)

(1) Unit Vigne et Vin- Centre INRA d’Angers. 42 rue Georges Morel; BP 57; 49071 Beaucouz Cedex
(2) Cellule Terroirs Viticoles – Chambre R gionale d’ Agriculture des Pays de la Loire

Keywords

terroirs viticoles, méthode d’étude, extension
viticultural terroirs, studying method, extension

Tags

IVES Conference Series | Terroir 2002

Citation

Related articles…

Elucidating contributions by vineyard site on volatile aroma characteristics of pinot noir wines

Correlations between vineyard site and wine have, historically, been limited due to lack of uniformity in scion and rootstock clone and lack of controlled pilot-scale winemaking conditions, particularly temperature

Wine chemical markers assess nitrogen levels in original grape juice

Nitrogen (N) nutrition of the vineyard plays a crucial role in the composition of must and wine, impacting fermentation, as well as the aroma and taste of the final product. N-deficient grape juice can result in increased astringency and bitterness, and a decrease in pleasant aromas in the wine.

Three new Apulian seedless varieties available for the table grape supply chain

The table grape industry in Europe is undergoing significant changes. For instance, in Italy, the national register of vine varieties was established in 1969, and since then, many varieties of table grapes have been registered. In the first thirty years, from 1969 to 1999, 62 seeded and 24 seedless varieties were registered. In the subsequent period, from 2000 to the present day, 23 seeded varieties and 99 seedless varieties were registered.

Effect of abiotic stress and grape variety on amino acid and polyamine composition of red grape berries

Vines are exposed to environmental conditions that cause abiotic stress on the plants (drought, nutrient and mineral deficits, salinity, etc.). Polyamines are growth regulators involved in various physiological processes, as in abiotic plant stress responses. Stressful conditions can modify grape’s composition, and in this work, we have focused on studying the effect of abiotic stress on the composition of polyamines and amino acids in grapes. In addition, the effect of grape variety on these compounds has been studied.

Publication of the 3rd edition of the OIV ampelographic descriptors

Ampelography is aimed at describing the vine according to several characteristics, such as morphology, agronomic aptitudes, technological potential, and genetics. The description of varieties and species of vitis has long been the subject of numerous scientific and technical studies by eminent specialists for a long time, which have led the OIV to publish in 1983 the “descriptor list for grape varieties and vitis species”, a milestone among the OIV worldwide recognised codes.