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…

Effects of progeny in the modulation of the response to water stress in isohydric and anisohydric varieties

Each grapevine variety has a specific water use regulation response under drought, and it is still unclear whether this regulation results from innate genotypic behavior (iso- and anisohydric), or is a response to environmental factors, namely recurrent water stress priming effects. In the present work, we explored the influence of the field-grown genotypes’ drought memory in the drought-response phenotype of their vegetative progenies, in Trincadeira (isohydric) and Castelão (anisohydric) varieties under a drought event followed by recovery in a glasshouse. Cuttings from both cultivars subjected to full irrigation (FI) and non-irrigation (NI) treatments for 5 consecutive years were used.

Overall conceptual characterization of aged dry white wines using a mental descriptive questionnaire

The purpose of the present study was to understand the overall concept of an aged dry white wine using a descriptive mental questionnaire. A total of 680 worldwide participants, grouped according to their involvement in the wine business, replied to an online questionnaire to characterize the sensory analytical and synthetic descriptors of an aged dry white wine. The descriptors were selected using a Check-All-That-Apply (CATA) approach concerning wine colour, aroma, taste, mouthfeel, and global appreciation.

The colour pattern of flower arrangements influence wine tasters’ sensory description

The arrangements of flowers and wine counterparts are inextricably linked. Whether a fundamental aspect of tablescaping or acolytes to broader entertainment rituals, they have an entangled history since ancient times. The aim of this contribution is to verify the influence of visually delicate and robust flower arrangements on individual description of wines. Changes in the sensory description of wines were investigated during subjects’ (thirty-two participants) exposure to three different conditions: the presence of delicate, robust, or totally absent flower arrangements.

Sugar accumulation disorder Berry Shrivel – from current knowledge towards novel hypothesis

In contrast to fruit and grape berry ripening, the biological processes causing ripening disorders are often much less understood, although shriveling disorders of fruits are manifold and contribute to yield losses and reduced fruit quality worldwide. Shrinking berries are a common feature for all shriveling disorders in grapevine although their timing of appearance during the berry ripening process and their underlying induction processes distinct them from each other. The sugar accumulation disorder Berry Shrivel (BS) is characterized by a suppression of sugar accumulation short after veraison resulting in berries low in sugar content and anthocyanins in berry skins, while the organic acid content is similar. Recent studies analyzed the biochemical, morphological and molecular processes affected in BS berries and linked early changes to the period of ripening onset [1,2].

Exploring relationships among grapevine chemical and physiological parameters and mycobiome composition under drought stress

Improving our knowledge on biotic and abiotic factors that influence the composition of the grapevine mycobiome is of great agricultural significance, due to potential effects on plant health, productivity, and wine characteristics. Among the various environmental factors affecting the morphological, physiological, biochemical and molecular attributes of grapevine, drought stress is one of the most severe, becoming increasingly an issue worldwide.