Terroir 1996 banner
IVES 9 IVES Conference Series 9 Observatoire Grenache en Vallée du Rhône: incidence du terroir sur la composition polyphénolique des raisins et des vins

Observatoire Grenache en Vallée du Rhône: incidence du terroir sur la composition polyphénolique des raisins et des vins

Abstract

The Grenache observatory was created in 1995. The object of this 24 parcels network, covering main Rhone Valley soils, is to state the effect of pedo-climatic conditions on plant physiology and wine characteristics. The results concerning colour and tanins show a very important diversity in Grenache behaviour. Anthocyanin content of grapes ranges from one to four, tanins from one to two. These important discrepancies are mainly quantitative and do not affect the thorough composition of grapes and wines. These results are confirmed in wines, and stable along the three years of this study. The parcels of the observatory can be divided in three groups, according to the phenolic content of their grapes. This grading is almost unchanged for the three vintages, which nevertheless were very different. Even if geo-pedologic conditions have an effect on wine phenolic content, climatic factors appear to be the most patent in this study.

Download the PDF

DOI:

Publication date: March 2, 2022

Issue: Terroir 1998

Type: Article

Authors

G.MASSON (1), C. PUECH (1), L-M. BREMOND (2), F. BERUD (3), L. LURTON (1)

(1) Comité Interprofessionnel des Vins d’A.O.C. Côtes du Rhône et de la Vallée du Rhône
(2) Syndicat Général des Vignerons Réunis des Côtes du Rhône
(3) G.D.A. Viticulture, Chambre d’Agriculture du Vaucluse, Institut Rhodanien, 2260 route du Grès, 84100 Orange, France

Tags

IVES Conference Series | Terroir 1998

Citation

Related articles…

Kegged wine as a sustainable alternative: impact on conservation and sensory quality

Wine is not just a beverage; it represents an entire ecosystem in winemaking regions and is deeply linked to economic, social, and environmental factors.

Read More

A survey on the rotundone content of 18 grape varieties sourced from a germplasm 

Rotundone, the pepper aroma compound, has been detected in wines made from a large number of grape varieties. However, given the fact that analyzed wines were sourced from different winegrowing regions and seasons, made using different winemaking techniques and at different scales, it remains difficult to assess the real variety potential to produce rotundone.

Read More

Aspect juridiques des terroirs

Le “terroir” est dans tous les discours, les articles, les étiquettes et les publicités. Le voca­ble est en situation d’utilisation euphorique. Indiscutablement l’emploi historique est agri­cole, puis viticole, mais il n’est jamais juridique.

Read More

Natural sparkling wine pétillant naturel: technological features and sensory profile

The article presents the results of a study on the technological features of producing sparkling wines of the Pétillant Naturel (Pet-Nat) type, made using the ancestral method from the Muscat Ottonel and Pinot Noir grape varieties.

Read More

Soil clay mineralogy and potassium buffer capacity as potential wine quality determining factors in Western Cape vineyards

The potassium (K) supply characteristics and clay mineralogies of a population of Western Cape soils were investigated to determine their potential effects on vine K uptake and wine quality. The total K contents of granite-, shale- and sandstone-derived soils varied, averaging 33.7, 26.1 and 4.5 cmol(+)/kg, respectively. Corresponding M NH4Cl exchangeable soil K levels were: 0.172, 0.042 and 0.035 cmol/kg.

Read More