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: 11/10/2023

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…

Metatranscriptomic analysis of “aszú” berries: the potential role of the most important species of the grape microbiota in the aroma of wines with noble rot

Botrytis cinerea has more than 1200 host plants and is one of the most important plant pathogens in viticulture. Under certain environmental conditions, it can lead to the development of a noble rot, which results in a specific metabolic profile, altering physical texture and chemical composition. The other microbes involved in this process and their functional genes are poorly characterised. We have generated metatranscriptomic [1,2] and DNA metabarcoding data from three months of the Furmint grape variety, representing the four phases of noble rot, from healthy berries to completely dried berries.

Read More

Uncovering the interplay between Copper and SO2 tolerance in Saccharomyces cerevisiae

[lwp_divi_breadcrumbs home_text="IVES" use_before_icon="on" before_icon="||divi||400" module_id="publication-ariane" _builder_version="4.20.4" _module_preset="default" module_text_align="center" module_font_size="16px" text_orientation="center"...
Read More

Assessing the Effectiveness of Electrodialysis in Controlling Brettanomyces Growth in Wine

Brettanomyces yeast can negatively impact the quality and stability of wines, posing a significant challenge to winemakers. [1] This study aims to develop novel management practices to limit Brettanomyces impact on wines by evaluating the effectiveness of electrodialysis (ED) technology in removing magnesium (Mg2+) from wine to prevent the development of Brettanomyces yeast. The ED technique utilizes charged membranes to extract ions from the wine, and it is considered an alternative to cold stabilization that requires less energy. [2]

Read More

Assessment of plant water consumption rates under climate change conditions through an automated modular platform

The impact of climate change is noticeable in the present weather, making water scarcity the most immediate mediator reducing the performance and viability of crops, including grapevine (Vitis vinifera L.). The present study developed a system (hardware, firmware, and software) for the determination of plant water use through changes in weight through a period. The aim is to measure the differences in grapevine water consumption in response to climate change (+4oC and 700 ppm) under controlled conditions. The results reveal a correlation between daily plant consumption rates and reference evapotranspiration (ETo).

Read More

Preliminary study of extraction of polysaccharides from pomace by high powered ultrasonic combined with enzymes

Red grape pomace can be an important source of polysaccharides, but currently they are little studied and even less with viable and environmental extraction processes (green extraction). These green techniques must be able to break the cell wall so that the compounds contained in the cells, including polysaccharides, are released and can have a great influence on extraction yields, the chemical structure of polysaccharides and applications in wines. Amongst the emerging green techniques most applied to the extraction of bioactive compounds, such as polysaccharides, high-power ultrasound (US) and enzyme-assisted extraction stand out.

Read More