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…

THE INFLUENCE OF COMMERCIAL SACCHAROMYCES CEREVISIAE ON THE POLY-SACCHARIDES AND OTHER CHEMICAL PROFILES OF NEW ZEALAND PINOT NOIR WINES

Wine polysaccharides (PS) play an important role in balancing mouthfeel and stability of wine and even influence aroma volatility. Despite this, there is limited research into the effect of winemaking additives on the polysaccharide profile and other macromolecules of New Zealand (NZ) Pinot noir wine. In this study the influence of a selection of commercial S. cerevisiae strains on the chemical profile, including polysaccharides, of New Zealand Pinot noir (PN) wine was investigated. Research scale PN fermentations using five strains of commercially available S. cerevisiae (Lalvin EC1118 and RC212, Levuline BRG YSEO, Viallate Ferm R71 and R82) were undertaken. PS were qualified and quantified using HPLC-RID.

Desorption of phenolic compounds bound to lees by combining hydrolytic enzymes and ultrasounds

he final concentration of phenolic compounds in the wines is usually lower than what might be expected given the phenolic concentration measured in grapes

Lipids at the crossroads of protection: lipid signalling in grapevine defence mechanisms

Understanding grapevine molecular processes and the underlying defence responses is vital for developing sustainable disease control strategies. Lipid signalling pathways, involving the synthesis and degradation of lipid molecules, have emerged as a key regulator in plant defence against pathogens. This study aims to elucidate the role of fatty acids and lipid signalling in grapevine’s defence response to P. viticola infection. The expression of lipid metabolism-related as well as lipid signalling genes was analysed, by qPCR, in three grapevine genotypes: Chardonnay (susceptible), Regent (tolerant) with Rpv3-1 resistance loci, and Sauvignac (resistant) harbouring a pyramid of Rpv12 and Rpv3-1 resistance loci.

High levels of copper and persistent synthetic pesticides in vineyard soils

Downy mildew (Plasmopara viticola), powdery mildew (Erysiphe necator) and bunch rot (Botrytis cinerea) are the most prevalent fungal diseases in viticulture.

Influence of processing parameters on aroma profile of conventional and ecological Cabernet-Sauvignon red wine during concentration by reverse osmosis

Wine aroma represents one of the most important quality parameter and it is influenced by various factors (viticulture and vinification techniques, climate or storage conditions etc.). Wines produced from conventionally and ecologically grown grapes of same variety have different chemical composition and aroma profile [1]. Aroma profile of wine can be also influenced by additional treatment of wine, such as concentration of wine by reverse osmosis (RO). Reverse osmosis represents a pressure-driven membrane separation technique that separates the initial wine on the retentate or concentrate that is retained on the membrane, and permeate that passes through it [2]. Wine permeate usually containes water, ethanol, acetic acid and several low molecular weight compounds that can pass through the membrane. This property enables the use of reverse osmosis membranes for wine concentration, partial dealcoholization, acetic acid or aroma correction [3,4].