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IVES 9 IVES Conference Series 9 Architecture, microclimate, vine regulation, grape berry and wine quality: how to choose the training system according to the wine type ?

Architecture, microclimate, vine regulation, grape berry and wine quality: how to choose the training system according to the wine type ?

Abstract

This synthetic presentation deals with :
• A description of the variability and the main models of grapevine canopy architecture in the world.
• A precision on the model « potential exposed leaf area SFEp », which estimates the potential of net carbon balance of the plant, and shows a regulating effect of high SFEp levels on production decrease.
• A presentation of plant global regulating processes influenced by the training system on the basis of the biological triptych theory : relation between (SFEp) and dry matter production (« puissance ») fitted by vigour ; relation between SFEp and bunch microclimate fitted by leaf exposure/bunch exposure ratio.
• The stability of the microclimatic equilibrium between leaf and bunch due to the architecture, in comparison with general climatic variations (Multicriteria Climatic Classification).
• Some consequences of SFEp and berry microclimate variations on Syrah wine typeness and quality, on the basis of a comparison in a dry « terroir » between the Vertical trellis, the truncated Lyre, the Lyre-volume.
• A general proposal over a 30 year experience of the most suitable training systems according to the objectives of production and quality. A special focus is made on the choice of the training system in function of the wine typeness (ie : « Lyre wine » concept).

DOI:

Publication date: January 12, 2022

Issue: Terroir 2004

Type: Article

Authors

A Carbonneau

IHEV (High Study Institute of Vine and Wine), Agro Montpellier (France)

Contact the author

Keywords

Architecture, training system, microclimate, canopy, leaf, exposed leaf area, vigour, production, grapeberry, wine quality

Tags

IVES Conference Series | Terroir 2004

Citation

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