terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Impact of climate on berry weight dynamics of a wide range of Vitis vinifera cultivars 

Impact of climate on berry weight dynamics of a wide range of Vitis vinifera cultivars 

Abstract

In order to study the impact of climate change on Bordeaux grape varieties and to assess the behavior of candidate grape varieties potentially better adapted to the new climatic conditions, an experimental vineyard composed of 52 grape varieties was planted in 2009 at the INRAE Bordeaux Aquitaine center[1]. Among the many parameters studied since 2012, berry weight for each variety was measured weekly from mid-veraison to maturity, with four independent replicates. The kinetics obtained allowed to study berry growth, a key parameter in grape composition and yield.
Ten years of data enabled the classification of varieties according to their berry weight, which ranged from 1 to 3 grams per berry on average. The year effect was also evaluated, in particular in relation to vine water status, which was assessed by examinating rainfall patterns and measuring carbon isotope discrimination (δ13C) on grape berry juice. Finally, the link between berry weight and seed number was studied for each variety in order to evaluate both the year and genetic effects.
This study provides a better understanding and characterisation of the environmental and genetic factors that govern berry weight across a wide range of grape varieties.

Acknowledgements: The authors would like to thank the UE Vigne Bordeaux, UMR EGFV and all the students who participate over the years. This long-term monitoring was supported by Conseil Interprofessionnel du Vin de Bordeaux, Région Aquitaine, Univ Bordeaux through LabEx and Jas. Hennessy & Co.

 

References:

1)  Destrac Irvine A. and van Leeuwen C. (2016) The VitAdapt project: extensive phenotyping of a wide range of varieties in order to optimize the use of genetic diversity within the Vitis vinifera species as a tool for adaptation to a changing environment. Climwine, sustainable grape and wine production in the context of climate change, 11-13 April 2016, Bordeaux. Full text proceedings paper, 165-171.    

DOI:

Publication date: October 11, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Agnès DESTRAC IRVINE1*, Mauricio GONZALEZ BATULE1, Mark GOWDY1 and Cornelis VAN LEEUWEN1

1EGFV, Univ. Bordeaux, Bordeaux Sciences Agro, INRAE, ISVV, F-33882 Villenave d’Ornon, France

Contact the author*

Keywords

vine, berry weight, classification, climate change, yield

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Sustainable management of grapevine trunk diseases

Grapevine trunk diseases (GTD) occur wherever grapes are grown and are considered the main biotic factor reducing yields and shortening vineyards’ lifespan. Currently, no product is available to eradicate GTD once grapevines are infected. Therefore, prophylactic strategies based on pruning wound protection and ‘remedial surgery’, the only eradication method based on the elimination of infected wood and renewal of the vine by means of new canes or suckers, are the only effective strategies available. The Canadian grape and wine industry focusses on a sustainable production and thus, looking for alternatives to chemicals for disease management is a top priority.

Read More

Phenolic composition of Cabernet Sauvignon wines from Argentina, Portugal and Spain

Grape and wine phenolic compounds have been shown to be highly related to both wine quality (color, flavor, and taste) and health-promoting properties (antioxidant and cardioprotective, among others). The aim of this work was to evaluate and compare the phenolic contents of Cabernet Sauvignon wines from different geographical areas and climatic conditions, namely from Argentina, Portugal and Spain vintage 2022. In addition, the phenolic profiles of the Portuguese wines from three vintages (2020, 2021, 2022) was compared.

Read More

Investigating the Ancient Egyptian wines: The wine jars database

In Ancient Egypt, wine was a luxury product consumed mainly by the upper classes and the royal family and offered to gods in daily religious rituals in the temples.
Since the Predynastic (4000-3100 BC) period, wine jars were placed in tombs as funerary offerings. From the Old Kingdom (2680-2160 BC) to the Greco-Roman (332 BC-395 AD) period, viticulture and winemaking scenes were depicted on the private tombs’ walls. During the New Kingdom (1539-1075 BC), wine jars were inscribed to indicate: vintage year, product, quality, provenance, property and winemaker’s name and title.

Read More

Identification of a stable epi-allele associated with flower development and low bunch compactness in a somatic variant of Tempranillo Tinto

Grapevine cultivars are vegetatively propagated to preserve their varietal characteristics. However, spontaneous somatic variations that occur and are maintained during cycles of vegetative growth offer opportunities for the natural improvement of traditional grape cultivars. One advantageous trait for winegrowing is reduced bunch compactness, which decreases the susceptibility to pests and fungal diseases and favor an even berry ripening.

Read More

Application of UV-B radiation in pre- and postharvest as an innovative and sustainable cultural practice to improve grape phenolic composition

Ultraviolet radiation (UVR) is a minor part of the solar spectrum, but it represents an important ecological factor that influences many biological processes related to plant growth and development. In recent years, the application of UVR in agriculture and food production is emerging as a clean and environmentally friendly technology.
In grapevine, many studies have been conducted on the effects of ambient levels of UVR, but there are few considering the effects of UV-B application on grape phenolic composition under commercial growing or postharvest conditions.

Read More