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.

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…

Tomatoes and Grapes: berry fruits with a (bright) biotech future?

Tomatoes and Grapes are berries that are genetically related and therefore at least partially their developmental pathways leading to a fleshy fruit should share some of the components. In a sense knowledge obtained from the model plant tomato could be useful for grape and conversely the more amenable tomato can be used to test some hypothesis that would be difficult to obtain in grape. Research in my lab and other labs have led to a better understanding of the molecular genetics mechanisms underlying fruit development and ripening in tomato and more specifically those related to metabolite accumulation that may lead to changes in fruit nutritional and flavor composition. This research has involved the use of genetic variability in natural population, but also biparental population and genetically engineered lines that are easy to develop in tomato tomato but not in grape. NGTs also can be easily implemented in tomato to not only speed up the gene-to-trait but also develop new tomato varieties.

Grape ripening and wine style: synchronized evolution of aromatic composition of shiraz wines from hot and temperate climates of Australia

Grape ripening is a process driven by the interactions between grapevine genotypes and environmental factors. Grape composition is largely responsible for the production

Zonazione aziendale nel territorio del Chianti classico e valorizzazione dei vini

Nell’ambiente del Chianti Classico è stato applicato un progetto di zonazione aziendale con l’objettivo di valorizzare le produzioni dei diversi vigneti. In particolare sono stati individuati sette siti, sottoposti a studio particolareggiato per un triennio.

Growers’ attitudes towards organic certification: the case of Central Otago, New Zealand

New Zealand viticulture has long been characterised by sustainable grape growing practices as promoted by Sustainable Winegrowing New Zealand (SWNZ) as well as by Organic Viticulture.

Service crop effects on grapevine water and nitrogen status and yield under Mediterranean climate

Service crops in vineyard can provide multiple ecosystem services but they can also lead to competition with the grapevine for soil resources in the Mediterranean region due to potential severe droughts (Garcia et al., 2018). One of the levers of action to manage this competition is the choice of species adapted in terms of growth dynamics and water and nutrients’ needs. The objectives of this study were to determine the effect of temporary service crops on grapevine water and nitrogen status and grapevine yield and yield components in a Mediterranean vineyard.