Terroir 2012 banner
IVES 9 IVES Conference Series 9 Using multifactorial analysis to evaluate the contribution of terroir components to the oenological potential of grapes at harvest

Using multifactorial analysis to evaluate the contribution of terroir components to the oenological potential of grapes at harvest


The oenological potential of grapes at harvest depends on a combination of the major components of Terroir: the climate, the soil, the plant material, the training system and the crop management. They control the type of product that can be developed, providing adapted winemaking techniques.
Due to the high variability of each of the Terroir components, predicting the grape oenological potentialities (and consequently the final product potential) is challenging.
To address this problem, we propose here a statistical method based upon multifactorial analysis. The method was established using of data set collected from 2005 to 2011, on a network of 13 plots of cv Merlot in the Bordeaux winegrowing region. This approach showed that Terroir reacted differently to year-to-year climate variability. Some plots provided a high oenological potential for most of the vintages whereas other were very sensitive to climate variations. When applied to Burgundy, on cv Pinot and Chardonnay (11 and 8 plots, respectively) from 2000 to 2010, similar conclusion were reached.
This multifactorial analysis approach proposed here is an efficient tool to characterize the oenological potential of Terroirs. Such potential could be estimated prior to harvest, knowing the major feature of the vintage by means of climate indices.


Publication date: August 26, 2020

Issue: Terroir 2012

Type: Article


Maud-Isabeau FURET (1), Maxime CHRISTEN (1), Anne-Charlotte MONTEAU (2), Christine MONAMY (2), Benjamin BOIS (3), Pascal GUILBAULT (1)

(1) Chambre d’Agriculture de la Gironde, Vinopôle Bordeaux-Aquitaine, 39 rue Michel Montaigne, 33294 Blanquefort, France
(2) BIVB, Pôle Technique et Qualité, 6 rue du 16ème Chasseurs, 21200 BEAUNE, France
(3) Centre de Recherches de Climatologie, UMR 6282 Biogéosciences CNRS Université de Bourgogne, 6, boulevard Gabriel, 21000 Dijon, France

Contact the author


grape oenological potential, terroir components, climate, vintage effect, plot effect, agronomic filter. Mots-clés : potentialités œnologiques de la récolte, composantes du terroir, climat, effets millésime, effet parcelle, filtre agronomique.


IVES Conference Series | Terroir 2012


Related articles…

Physiological and growth reaction of Shiraz/101-14 Mgt to row orientation and soil water status

Advanced knowledge on grapevine row orientation is required to improve establishment, management and outcomes of vineyards on terroirs with different environmental conditions (climate, soil, topography) and in view of a future change to more extreme climatic conditions. The purpose of this study was to determine the combined effect of row orientation, plant water status and ripeness level on the physiological and viticultural reaction of Shiraz/101-14 Mgt.

Effects of mechanical leafing and deficit irrigation on Cabernet Sauvignon grown in warm climate of California

San Joaquin Valley accounts for 40% of wine grape acreage and produces 70% of wine grape in California. Fruit quality is one of most important factors which impact the economical sustainability of farming wine grapes in this region. Due to the recent drought and expected labor cost increase, the wine industry is thrilled to understand how to improve fruit quality while maintaining the yield with less water and labor input. The present study aims to study the interactive effects of mechanical leafing and deficit irrigation on yield and berry compositions of Cabernet Sauvignon grown in warm climate of California.

The effects of cane girdling on berry texture properties and the concentration of some aroma compounds in three table grape cultivars

The marketability of the table grapes is highly influenced by the consumer demand; therefore the market value of the table grapes is mainly characterized by its berry size, colour, taste and texture. Girdling could cause accumulation of several components in plants above the ringing of the phloem including clusters and resulting improved maturity. The aim of the experiments was to examine the effect of girdling on berry texture characteristics and aroma concentration.

Application of a fluorescence-based method to evaluate the ripening process and quality of Pinot Blanc grape

The chemical composition of grape berries at harvest is one of the most important factors that should be considered to produce high quality wines. Among the different chemical classes which characterize the grape juice, the polyphenolic compound, such as flavonoids, contribute to the final taste and color of wines. Recently, an innovative non-destructive method, based on chlorophyll fluorescence, was developed to estimate the phenolic maturity of red grape varieties through the evaluation of anthocyanins accumulated in the berry skin. To date, only few data are available about the application of this method on white grape varieties.

Different yield regulation strategies in semi-minimal-pruned hedge (SMPH) and impact on bunch architecture

Yields in the novel viticulture training system Semi-Minimal-Pruned Hedge (SMPH) are generally higher compared to the traditional Vertical Shoot Positioning (VSP). Excessive yields have a negative impact on the vine and wine quality, which can result in substantial losses in yield in subsequent vintages (alternate bearing) or penalties in fruit quality. Therefore yield regulation is essential. The bunch architecture in SMPH differs from VSP. Generally there is a higher amount but smaller bunches with lower single berry weights in SMPH compared to VSP.