Terroir 2016 banner
IVES 9 IVES Conference Series 9 Irrigation and terroir: two opposite concepts? Point of view of international experts and french consumers

Irrigation and terroir: two opposite concepts? Point of view of international experts and french consumers

Abstract

At long term, qualitative irrigation seems to be the most systematic, if not the best, cultural practice for dealing with climate change and yield increases without decrease grape quality. Given this backdrop, the acceptance or irrigation within the frameworks of the terroir definition takes a central place. Consistently, the objective of this work is to evaluate this compatibility. Since irrigation is basically a social practice, it is important to understand it from a sociological point of view.

To meet this commitment, a qualitative questionnaire was implemented: standard personal interviews with no frequency (subject surveyed once) with a multi-topic research (omnibus research). 18 participants to the 19th GiESCO Meeting were selected as participants to the questionnaire. In a second instance, a quantitative questionnaire was evaluated: depth or intensive questionnaire with close-ended questions. In parallel, 512 French wine consumers participate to an Internet survey. This way, subject was approached from a twofold perspective: qualified researchers and French wine regular consumers.

Results show that surveyed expert seems to agree (in 63% of cases) with the idea of not changing a terroir by adding water under a controlled management of the water status in the vine. Level of agreement seems to be related with expert’s provenance and therefore expert’s observations in their local weather. Finally, concerning consumer’s approach, the level of implication in wine seems to play a role in accepting irrigation; consumers not implicated on wine don’t have a formed opinion whereas implicated consumers showed both; for and against a reasoned irrigation as a tool to deal against climate change. Moreover, within qualified consumers, age could serve for explaining the acceptance of irrigation: young (≤35 years old) and medium consumers (from 36 to 64 years old) were more likely to accept irrigation and a different grape variety to preserve wine quality.

DOI:

Publication date: June 23, 2020

Issue: Terroir 2016

Type: Article

Authors

Santiago ALVAREZ GEI (1,2), Hernán OJEDA (1), Cécile COULON-LEROY (2)

(1) INRA, UE999 Pech Rouge, F-11430 Gruissan, France
(2) Unité GRAPPE, ESA, INRA, Comue UBL, 55 rue Rabelais BP 30748, F-49007 Angers, France

Keywords

Irrigation, Terroir, International experts, French consumers

Tags

IVES Conference Series | Terroir 2016

Citation

Related articles…

From local classification to regional zoning-the use of a geographic information system (GIS) in Franconia/Germany. Part 2: regional zoning of vineyards based on local climatic classifications

En raison des vanations locales d’exposition et de déclivité, l’évaluation climatique des vignobles et des régions viticoles est très important pour la culture des raisins.

PHOTO OXIDATION OF LUGANA WINES: INFLUENCE OF YEASTS AND RESIDUAL NITROGEN ON VSCS PROFILE

Lugana wines are made from Turbiana grapes. In recent times, many white and rosé wines are bottled and stored in flint glass bottles because of commercial appeal. However, this practice could worsen the aroma profile of the wine, especially as regards the development of volatile sulfur compounds (VSCs). This study aims to investigate the consequences of exposure to light in flint bottles on VSCs profile of Lugana wines fermented with two different yeasts and with different post-fermentation residual nitrogen.

High-altitude vineyards under extreme conditions in the PIWI context of cultivation: economic and marketing evidence from an exploratory study in Northern Italy

Viticulture has spread to unexpected locations, such as high-altitude terrain. Among these, high-altitude viticulture has captured considerable attention, not only for the uniqueness of its products and landscapes but also because it offers an effective response to climate changes
The aim of this study is to analyse and compare wineries that used Piwi varieties (acronym for the German Pilzwiderstandfähig, i.e., cryptogame-resistant) at high altitudes (between 500 and 920 m a.s.l.) with the traditional non-mountainous viticulture model.

Functionality of different inter-stimulus rinse protocols for the sensory analysis of wildfire affected wines

From the effect of global climate change, wildfire occurrence during grape ripening has increased. These wildfires produce smoke that can carry organic compounds to a vineyard. These smoke compounds are adsorbed in the grape berry and result in wines with elevated levels of smoke-related phenols. These wines are described as having a smokey, burnt, and dirty aroma (Kristic et al, 2015). Not only are volatile phenols carried by smoke, but additionally glycoconjugate forms of these phenols are present as will. These have been found to have a large impact on the flavor of wines, being the cause of a lasting ashy aftertaste post consumption (Parker et al, 2012). When evaluating the sensory profile of these wines when tasted one after the other, there is an observed problem due to the lasting nature of these undesirable attributes and high level of carry-over from sample to sample. The aim of this work is to evaluate the extent this carryover occurs, along with the best sensory practices to mitigate its influence via different inter-stimulus rinse protocols.

Methodology of climate modelling using land surface temperature downscaling: case study case of Gironde (France)

Aim: Climate modelling in viticulture introduced new challenges such as high spatio-temporal monitoring and the use of dependable time series and robustness modelling methods. Land surface temperature (LST) is widely used and particularly MODIS thermal satellite images due to their high temporal resolution (four images per day).