Terroir 2008 banner
IVES 9 IVES Conference Series 9 Soils and plant material in prestigious Bordeaux vineyards impacts on yield and quality

Soils and plant material in prestigious Bordeaux vineyards impacts on yield and quality

Abstract

High resolution soil maps (scale : 1/3000) were created for seven of the most prestigious red wine producing estates in Bordeaux, covering in total approximately 400 ha. Soil type and grapevine variety were recorded for each vineyard block of these estates. A quality index was created by considering the destination of the grapes produced on each block, whether they were integrated in the first, the second or the third quality wine produced by the estate. Quality index was averaged over five vintages. Yield was measured for each vineyard block and averaged over five vintages. PEYROSOL (gravely soil) was the most frequent soil type in these estates (44% of the total mapped area). Soils with temporary water logging (REDOXISOL), heavy clay soils (PLANOSOL) and sandy-gravely soils (BRUNISOL) each covered 10% of the mapped area . Highest quality was obtained on PLANOSOLS, ARENOSOLS (sandy soils), BRUNISOLS and PEYROSOLS. Quality was low on COLLUVIOSOLS (deep soils on colluvium), LUVISOLS (leached soils) and REDUCTISOLS (soils with permanent water logging). Cabernet-Sauvignon was the dominant grapevine variety (59% of the mapped area), followed by Merlot (32%), Cabernet franc (8%) and Petit Verdot (1%). On average, the Quality Index was higher for Cabernet-Sauvignon and Merlot compared to Cabernet franc and Petit Verdot. Yield was dependent on soil type and cultivar. Comparison of soil type, cultivar and Quality Index can indicate which relationships between soil type / cultivar contribute to optimum quality performance in Bordeaux.

DOI:

Publication date: December 8, 2021

Issue: Terroir 2008

Type : Article

Authors

VAN LEEUWEN C. (1), RENOUF V. (1,2), TREGOAT O. (3), MARGUERIT E. (1) and ROBY J.-P. (1)

(1) ENITA – ISVV, 1 Cours du Général de Gaulle, CS 40201, F-33175 Gradignan cedex
(2) Laffort, BP 17, F-33015 Bordeaux cedex 15
(3) Olivier Tregoat, Viti Dévelopment, Expertise de terroir,39 rue Antoine Miquel, F-34500 Béziers

Contact the author

Keywords

Soil type, Bordeaux, estate, quality, yield

Tags

IVES Conference Series | Terroir 2008

Citation

Related articles…

Managing local field variability in the framework of precision viticulture

Managing grapevines according to the practices of Precision Agriculture (PA), may prove to be an asset in the hands of the modern grape growers.

Cordon height and deficit irrigation practices interact to affect yield and fruit quality of Cabernet Sauvignon and petite Sirah grown in a hot climate

Cabernet Sauvignon and Petite Sirah are the top red wine cultivars in CA, however, the hot climate in Fresno is not ideal for red Vitis Vinifera, particularly for berry color development. Mechanical pruning and irrigation were studied previously to significantly affect grapevine yield performance and berry quality. But there is lack of studies on cordon height and irrigation on mechanical pruned vineyard system.

NAVIC–20 years of a lean management model for wine business R&D

Considering That Innovation Supports A Company’s Competitive Advantage And Drive Higher Profits (Dogru A. & Peyrette J., 2022), A Key Challenge Of Wine Companies Is Getting Practitioners To Understand That Innovation-Related Wine Research Increases The Likelihood Of Competitive Advantage, Bringing Financial Success. A Continued And Enhanced Investment In Research Is, Thus, A Prerequisite For Commercial Success In Today’s Globalized And Competitive Wine Industry (Høj P., Pretorius I.S., & Day R., 2003).

South American Creole grapevines: new varieties identified in the Caravelí Valley (Peru) and their aromatic profile

The valley of Caravelí (Peru) received the first vine plants in colonial times and the tradition of cultivation is maintained thanks to its terroir and artisanal techniques.

Effect of nitrogen content on fermentation kinetics and aroma profile of assyrtiko wine

Today, there is need to design, produce and label terroir wines, with unique organoleptic properties and more “attractive to consumers”. For this purpose, two Saccharomyces cerevisiae yeast strains (Sa and Sb) isolated during spontaneous fermentations were used for white wine production from the Assyrtiko grape of Santorini. A third commercial strain was used as control.