Terroir 2010 banner
IVES 9 IVES Conference Series 9 Etude des effets millésime, situation et sol à partir d’un observatoire du Gamay en beaujolais

Etude des effets millésime, situation et sol à partir d’un observatoire du Gamay en beaujolais

Abstract

Des expérimentations sur Gamay ont été réalisées en Beaujolais de 2000 à 2006 sur 10 parcelles d’AOC différentes. De nombreuses mesures ont été effectuées à différents stades (vigne, baies récoltées, vinification et bouteille avec ou sans vieillissement). Ces mesures sont également de natures différentes (données phénologiques, analytiques, dégustation). Des analyses de la composition des sols sont également disponibles. Des travaux d’analyse de données ont permis d’effectuer une analyse exploratoire de la base de données afin de déterminer et quantifier les effets de divers facteurs (parcelle, millésime) sur certains des paramètres mesurés au cours du procédé de vinification. Ces effets ont également été mis en relation avec l’analyse des sols.

Les résultats confirment l’effet important du millésime. Une typologie des millésimes se dégage grâce aux outils utilisés. Un fort effet parcelle est également mis en évidence. Une corrélation existe entre couleur et acidité. Il est vérifié que la variable de rendement n’est pas responsable de l’effet parcelle pour les témoins. L’effet parcelle est en partie bien expliqué par la précocité, liée en général à l’altitude et au climat. Par contre cet effet est peu expliqué par le type d’AOC. La typologie de composition des sols présente un lien avec le type d’AOC. Les Beaujolais-Villages présentent notamment une bonne homogénéité. La composition des sols semble avoir peu d’impact sur le raisin et le vin produits sur les témoins.

English version: From 2000 to 2006 an important study was carried out on 10 plots in different Beaujolais AOC. Numerous measures were made at different stages (vine, must, vinification) with different nature (phenology, chemical, sensorial analysis). Data analysis have allowed to determine and quantify factor effects such as situation or vintage on wine characteristics. Soil analysis were also used in this study.

Results confirm important effect of vintage and it is possible to classify the different vintages with statistic tools used in this study. An important situation effect, independent of yield, was also highlighted. This effect is well explained by earliness but poorly by AOC. A strong correlation exists between wine color and acidity. There is a good relation between soil type and AOC, particularly with Beaujolais-Villages. But soil composition seems to have a weak influence on grape and wine characteristics.

Download the PDF

DOI:

Publication date: October 6, 2020

Issue: Terroir 2010

Type: Article

Authors

V. Lempereur (1), S. Preys (2), J.Y. Cahurel (1)

(1) IFV-SICAREX-Beaujolais, 210 boulevard Vermorel, BP 320, 69661 Villefranche Cedex, France
(2) Ondalys, 385 avenue des Baronnes, 34730 Prades-le-Lez, France

Contact the author

Keywords

Data analysis – earliness – situation – soil – vintage

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

To what extent does vine balance actually drive fruit composition?

Context and purpose of the study ‐ Vine balance is a concept describing the relationship between carbon assimilation (usually estimated using a measure of vine vigour, e.g. pruning weight) and its utilisation for fruit production (usually estimated using harvest yield). Manipulating vine balance through leaf area or crop load adjustments affects the proportion of the vine’s total carbohydrate production required to mature the fruit. It is commonly considered that composition of the berry, and resulting wine, is strongly affected by vine balance.
Read More

Investigating the conceptualization and practices linked to peppery notes in Syrah red wines by French winemakers from different regions

The peppery attribute is often used to describe the aroma of Syrah wines. Rotundone was identified as the main aroma compound responsible for these notes. A significant percentage of anosmic respondents to this molecule was reported in previous studies. However, in most cases, these anosmic respondents, formally tested through three-alternative forced choice (3AFC), frequently declare being able to perceive peppery notes in wines. The main objective of this study was to investigate how anosmic French producers from two different regions conceptualize the peppery notes in Syrah red wines, and how they link it to production practices in comparison with non-anosmic producers.

Read More

Effect of rootstock and preplant fumigation on plant parasitic nematode development in Washington wine grapes

In Washington State, the majority of winegrape (Vitis vinifera) vineyards are planted to their own roots. This practice is possible due to the lack of established phylloxera populations, and is preferred due to the ease of retraining after damaging winter cold events. However, own-rooted V. vinifera is generally susceptible to most plant parasitic nematodes that attack grape. In Washington State, management of nematodes is dominated by preplant soil fumigation. One practice that may mitigate economic loss due to nematodes is the adoption of nematode-“resistant” rootstocks.

Read More

Climate change is here to stay: adapting vineyards to a warming world

As an industry that thrives more on, but may also be more affected by, vintage variation and regionality than any other agricultural enterprise, grape and wine production is ever more being impacted challenged by climate change.

Read More

What drives Indications of Geographical Origin protection and governance mechanisms in the U.S. and European contexts? A contribution of the social sciences

There are fundamentally two different ways in which indications of geographical origin (igos) can be protected. The us approach favors the pre-existing trademark system through collective marks (cms), while the eu approach favors a maximalist approach via a sui generis system which promotes appellations of origin (aos). A consensus however emerges regarding the fundamental protection of origin against misleading, confusing and dilutive uses. Previous literature discusses these competing igo logics from historical, legal and international trade perspectives. In this paper, we depart from the field of social sciences, in particular from recent advancements in the well-established literature on proximities, in order to provide a reflection on the different logics underpinning the aos and cms systems.

Read More