Terroir 1996 banner
IVES 9 IVES Conference Series 9 Valorisation agroviticole de l’effet terroir par l’enherbement des sols

Valorisation agroviticole de l’effet terroir par l’enherbement des sols

Abstract

Les études développées par l’INRA et l’UV, à Angers, concerne les terroirs viticoles et leur gestion optimisée, tant du point de vue agroviticole qu’oenologique. Les travaux antérieurs (Morlat, 1989) ont permis de donner une dimension scientifique au concept de terroir viticole et ont démontré l’influence considérable de ce facteur de production sur la qualité et la typicité des vins (Asselin et al, 1992). Une méthodologie de caractérisation intégrée des terroirs, s’appuyant sur « l’Unité Naturelle Terroir de Base » (considérée comme la plus petite unité spatiale de territoire utilisable dans la pratique, et dans laquelle la réponse de la vigne est homogène), a été mise au point (Riou et al, 1995).

Les terroirs identifiés et cartographiés selon cette méthode occupent une surface qui varie de quelques hectares à plusieurs centaines d’hectares. Ils peuvent constituer la base d’un zonage pour une région viticole, à partir duquel on peut envisager d’une part, une utilisation rationnelle de l’effet terroir à l’échelle de l’exploitation viticole, et d’autre part une gestion parcellaire des itinéraires techniques.

Download the PDF

DOI:

Publication date: March 22, 2022

Issue: Terroir 1996

Type : Poster

Authors

C. RIOU (1), R. MORLAT (2)

(1) ITV Angers
42 rue G. Morel 49070 Beaucouzé, France
(2) URVV-INRA Angers
B.P. 57, 49071 Beaucouzé, France

Tags

IVES Conference Series | Terroir 1996

Citation

Related articles…

Characterization of commercial enological tannins and its effect on human saliva diffusion

Commercial oenological tannins (TECs) are widely used in the wine industry. TECs are rich in condensed tannins, hydrolyzable tannins or a mixture of both. Wine grapes are a important source of proanthocyanidins or condensed tannins while oak wood possess a high concentration of hydrolyzable tannins (Obreque-Slier et al., 2009). TECs contribute with the antioxidant capacity of wine, catalyze oxide-reduction reactions and participate in the removal of sulfur compounds and metals.
Read More

Influence of trellis system and shoot density in yield and grape composition of a vineyard of Cabernet Sauvignon, in warm climate

In vineyards grown in warm areas, it is usual that the stage of maturity of the grapes is fast and easily reach a high concentration of sugar and low acidity, but not a adequate phenolic maturation. The geometry of the trellis system and the shoot density can modify the microclimate of the cluster and, therefore, the maturation process.

Read More

Field-grown Sauvignon Blanc berries react to increased exposure by controlling antioxidant homeostasis and displaying UV acclimation responses that are influenced by the level of ambient light

Leaf removal in the bunch zone is a common viticultural practice with several objectives, yet it has been difficult to conclusively link the physiological mechanism(s) and metabolic berry impact to this widely practiced treatment. We used a field-omics approach1 in a Sauvignon blanc high altitude model vineyard, showing that the early leaf removal in the bunch zone caused quantifiable and stable responses (over years) in the microclimate where the main perturbation was increased exposure. We provide an explanation for how leaf removal leads to the shifts in grape metabolites typically linked to this treatment and confirm anecdotal evidence and previous reports that leaf removal treatment at an early stage of berry development affects “quality-associated” metabolites (monoterpenes and norisoprenoids).

Read More

Use of minority grape varieties to mitigate climate change and achievement of balanced wines in Castilla y León (Spain)

Castilla y León is the third longest region in the European Union, having more than 85.000 vineyard hectares.

Read More

The effect of different irrigation regimes on the indigenous Cypriot grape variety Xynisteri and comparison to Sauvignon blanc

Aims: The aims of this study were to (1) assess the response of the indigenous Cypriot variety Xynisteri to different irrigation regimes and (2) compare the performance of Xynisteri to Sauvignon Blanc grown in pots with different irrigation regimes.

Read More