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. 

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…

Roots and rhizosphere microbiota diversity is influenced by rootstock and scion genotypes: can this be linked to the development of the grafted plant?  

Soil is a reservoir of microorganisms playing important roles in biogeochemical cycles and interacting with plants whether in the rhizosphere or in the root endosphere. Through rhizodeposition, plants regulate their associated microbiome composition depending on the environment and plant factors, including genotypes. Since the phylloxera crisis, Vitis vinifera cultivars are mainly grafted onto American Vitis hybrids. Rootstocks play a pivotal role in the grapevine development, as the interface between the scion and the soil.

Characteristics of ecological production of grape and wine in Prizren’s vineyard territory in Yugoslavia

Prizren’s vineyard territory-y assigned for ecological production of grapes and wine includes 1. 200 hectares of vineyard located in five separate localities which belongs to the P KB “Kosovo vina”, Mala Krusa in Prizren. Division of vineyard territory in zones was carried out in 1974. Pertaining to the vineyards, the climate and soil conditions have been studied and determined as well as topographie establishing of vineyard boundaries.

Soil variability effects on vine rootzones and available water

Aim: The aim of this work is educating people about soil variability, vine rootzone depth and readily available water holding capacity. The concept of terroir is readily discussed in the wine industry but many people involved are unable to describe a soil profile and interpret its limitations that impact on vine growth, fruit quality and wine produced. This paper discusses soil physical characteristics important to vine root growth and readily available water holding capacity (RAW).

Peptides diversity and oxidative sensitivity: case of specific optimized inactivated yeasts

Estimation of the resistance of a wine against oxidation is of great importance for the wine. To that purpose, most of the commonly used chemical assays that are dedicated to estimate the antioxidant (or antiradical) capacity of a wine consist in measuring the capacity of the wine to reduce an oxidative compound or a stable radical.

The influence of culture medium on the dynamics of fermentation of wine yeasts

Wine yeast strains Saccharomyces ellipsoideus have important applications in food industry and in this regard is sought isolation as pure cultures and selecting those strains, which in laboratory investigations which have great biotechnological properties This study was intended as the ratio of live cells and autolysates cells also the influence of culture medium on this report. Yeasts selected for this study were isolated from industrial strains of indigenous grape varieties, namely: Feteasca Royal (FR) Feteasca White (FA), black Feteasca (FN), Romanian Tamaioasa (TR), Babeasca Black (BN) and Cotnari Grasa (GC).