Terroir 2010 banner
IVES 9 IVES Conference Series 9 Impact of pedoclimatical conditions on the precocity potential of vineyards in the canton of Geneva

Impact of pedoclimatical conditions on the precocity potential of vineyards in the canton of Geneva

Abstract

Terroir studies are common nowadays but few have used precise pedoclimatic measures in order to evaluate the precocity potential. The objectives of this work were (i) to assess the effect of main terroir parameters (soil, climate and topography) influencing the phenological development of the vine, and (ii) to evaluate a geostatistic approach by using a high number of already existing plots (higher variability) to analyze the terroir parameters’ impact. The results showed that the plots presented a different development concerning budbreak and concerning the speed of development during the growing season. These two components are not influenced by the same parameters. This emphasizes that the influence of the different terroir parameters can vary during the growing season. Some parameters derived from a digital elevation mode, like modelized incoming radiations, seem promising for estimating the precocity potential of the different zones. Finally, the results showed that the observation of a large quantity of already existing vineyards not intended for research is adapted to define the main factors of the terroir, despite natural variability or human influence.

DOI:

Publication date: October 6, 2020

Issue: Terroir 2010

Type: Article

Authors

S. Burgos(1), S. Almendros(1), E. Fortier (1)

(1) Oenological school of Changins, University of Applied Sciences of south-western SwitzerlandRte de Duillier, CH-1260 Nyon Switzerland

Contact the author

Keywords

Phenology–meso-climate – PCA – precocity potential – GIS

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

Development, validation and application of a fast UHPLC-HRMS method for the analysis of amino acids and biogenic amines in wines and musts.

The amino acids in grape juice are an important nitrogen source for yeast during alcoholic fermentation. Additionally, certain AAs are precursors to some of the volatile compounds found in wine and overall

Preliminary field studies of resistance of Georgian grapevine germplasm to powdery mildew (Erysiphe necator)

Erysiphe necator Schwein is a fungus that causes grapevine powdery mildew. It is one of the most problematic pathogens attacking Vitis vinifera L. The pathogen infects all green parts of the plant and reduces grape yield and quality. The suppression on mildew-susceptible cultivars requires intensive use of fungicides against pathogen, which has negative impact on the environment and human health.

Grape phylloxera meets drought: increased risk for vines under climate change?

Climate change is increasing the frequency and severity of drought periods leading to significant impacts on agro‐economic activities

The influence of different fertiliser applications and canopy management practices on the potassium content and pH of juice and wine of Vitis vinifera L. cvs. Cabernet-Sauvignon and Cabernet franc

In an attempt to reduce the pH of juice and wine, different fertiliser applications and canopy management practices were evaluated in South Africa in a field trial. Fertiliser treatments entailed no, CaSO4, Ca(OH)2, and MgSO4 fertilisation.

The influence of terroir on the quality of wine of the Cahors A.O.C

Dans le but d’améliorer la qualité et la typicité des vins de l’Appellation d’0rigine Contrôlée CAHORS, une étude a été réalisée afin de mettre en évidence l’adéquation Cépage-Terroir- Qualité du vin.
Selon la méthodologie proposée par MORLAT et ASSELIN (1992), neuf unités terroirs ont été déterminées. Sur chacune, des parcelles de référence homogènes quant au matériel végétal Cot ou Malbec ( cépage principal de cette appellation greffé sur S04, et aux méthodes culturales, ont été suivies au niveau agronomique et œnologique (GARCIA et al., 1996).