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.

Download the PDF

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…

Response of red grape varieties irrigated during the summer to water availability at the end of winter in four Spanish wine-growing regions: berry phenolic composition

Water availability is the most limiting factor for vineyard productivity under Mediterranean conditions. Due to the effects caused by the current climate change, wine-growing regions may face serious soil moisture conservation problems, due to the lower water retention capacity of the soil and higher soil irradiation. The aim of this work was to evaluate the effects of soil recharge irrigation in pre-sprouting and summer irrigation every week (30 % ETo) from the pea size state until the end of ripening (RP) compared to exclusively summer irrigation every week (R) in the same way that RP, on berry phenolic composition at harvest.

Read More

Influence of the type of flavonol and the presence of mannoproteins in the copigmentation with malvidin 3-O-glucoside

To study the copigmentation between different wine flavonols (myricetin, quercetin, kaempferol, isorhamnetin and syringetin 3-O-glucosides) and malvidin

Read More

Rootstock selection moderates the effect of rising temperatures through drought tolerance and modulation of stomatal conductance

Climate change is increasing crop evapotranspiration and reducing water availability, especially in the Mediterranean area.

Read More

Effect of different packaging materials on table grape quality preservation during cold storage

During cold storage, grapes undergo changes that affect their visual, mechanical, and organoleptic properties, potentially impacting quality and negatively influencing consumer acceptance. Key parameters include uniform color, crunchiness, and flesh consistency. We evaluated the influence of two distinct packaging methods on the chromatic characteristics, hardness, and pedicel detachment resistance of fourteen new seedless white and red grape varieties during cold storage. These factors are crucial for maintaining the quality of the product and extending its shelf-life. The novel grape varieties were obtained through a breeding program at CREA-VE of Turi, Southern Italy.

Read More

Utilisation de données historiques pour caractériser le millésime en cours

Cet article propose la formalisation d’un modèle paramétrique pour représenter l’accumulation des sucres dans les baies de raisin durant la maturation. Le test de ce modèle sur des jeux de données réels a permis de valider l’approche proposée. Une seconde partie est axée sur l’adaptation de la méthode pour permettre la simulation du comportement du millésime en cours dès les premiers relevés de maturité. Ce travail possède de multiples applications dans le domaine de l’aide à la décision.

Read More