GiESCO 2019 banner
IVES 9 IVES Conference Series 9 GiESCO 9 GiESCO 2019 9 Soil and topography effects on water status and must composition of chardonnay in burgundy & a mini meta‐analysis of the δ 13C/water potentials correlation

Soil and topography effects on water status and must composition of chardonnay in burgundy & a mini meta‐analysis of the δ 13C/water potentials correlation

Abstract

Context and purpose of the study: The measurement of carbon isotopic discrimination in grape sugars 13 at harvest (δ C) is an integrated assessment of water status during ripening. It is an efficient alternative to assess variability in the field and discriminate between management zones in precision viticulture, but further work is needed to completely understand the signal.

Material and methods: This work, spanning over 3 years, performed in in 8 different plots in a hillslope toposequence in Burgundy, delineates the relationships between main soil properties (gravel amount, slope, texture) and the grapevine water status assessed by δ13C and predawn leaf water potentials (Ψpd). Brix, tartaric and malic acids were also measured.

Results: The highest δ13C, indicating most severe water deficit, was recorded in gravelly soils on steep 13 slopes. The amount of sugars and malic and tartaric acids was also related to δ C. The relationship between δ 13C and Ψpd was also investigated, because the absolute values of measured δ 13C were lower than the values currently found in the literature. A mini‐meta‐analysis was performed, which 13 showed that the slope of the relationships between minimum Ψpd and δ C was stable across studies (a 13 change of 1‰ in δ C corresponded to a change of −0.2 MPa in the minimum Ψpd), while the intercept of the comparison δ 13C/Ψpd changed, probably because of genetic variations between varieties, or environmental differences. 

Download the PDF

DOI:

Publication date: June 19, 2020

Issue: GiESCO 2019

Type: Article

Authors

Luca BRILLANTE (1), Olivier MATHIEU (2), Jean LEVEQUE (2), Cornelis van LEEUWEN (3), Benjamin BOIS (2,4)

(1) Dep. of Viticulture and Enology, California State University, Fresno, CA 93740 USA
(2) UMR CNRS/uB 6282 Biogéosciences, Université de Bourgogne-Franche-Comté, Dijon, FR
(3) EGFV, Bordeaux Sciences Agro, INRA, Univ. Bordeaux, ISVV, 33882, Villenaved’Ornon, FR
(4) Institut Universitaire de la Vigne et du Vin ‘Jules Guyot’, Université de Bourgogne-Franche-Comté, Dijon, FR

Contact the author

Keywords

carbon isotopic discrimination; water stress; terroir; slope; organic acids

Tags

GiESCO 2019 | IVES Conference Series

Citation

Related articles…

Wine tourism in southern Italy: A surge in popularity and economic impact

Wine tourism has transformed from a leisure activity into a crucial part of the tourist experience, significantly contributing to rural tourism’s expansion in italy. It has witnessed a notable surge in popularity in recent years, evolving as a key motivator for travel (antonioli corigliano, 2002; brunori & rossi, 2000; città del vino & censis servizi, 2011; garibaldi, 2018; 2019a; 2020; montanari, 2009; romano & natilli, 2009). The allure of wine tourism, driven by sensory experiences and cultural immersion, continues to attract a diverse group of tourists. The economic impact is substantial, with events and festivals contributing approximately €2.5 billion annually.

Read More

The ability of wine yeasts fermenting by the addition of exogenous biotin

Research is focused on the increase of the field of obtaining the wine yeast, under physical and chemical conditions. Study of different influences on yeast production is very important for the promotion

Read More

Exploring the plasticity of the grapevine drought physiology

Grapevine response to water deficit has been extensively studied. Nevertheless, debate still exists regarding some physiology adoption under drought

Read More

Tokaj zonation, traditions and future prospects

La superficie actuelle de l’ensemble des vignobles est de 5.293 ha qui est repartie dans 27 communes (données officielles du Conseil National des Communes de montagnes).

Read More

Application of satellite-derived vegetation indices for frost damage detection in grapevines

Wine grape production is increasingly vulnerable to freeze damage due to warming climates, milder winters, and unpredictable late spring frosts. Traditional methods for assessing frost damage in grapevines which combine fieldwork and meteorological data, are expensive, time-consuming, and labor-intensive. Remote sensing could offer a rapid, inexpensive way to detect frost damage at a regional scale. Remote sensing approaches were used to assess freeze damage in grapevines by evaluating satellite-derived vegetation indices (VIs) to understand the severity and spatial distribution of damage in several New York vineyards immediately after a frost event (May 17th-18th, 2023). PlanetScope 3m satellite images acquired before and after the freeze were used to map damage and measure changes in VIs for vineyards in the Finger Lakes region.

Read More