terclim by ICS banner
IVES 9 IVES Conference Series 9 Exploring the influence of grapevine rootstock on yield components 

Exploring the influence of grapevine rootstock on yield components 

Abstract

Yield is an agronomic trait that is critical to the sustained success and profitability of the wine industry.  In the context of global warming, overall yield tends to decrease. Rootstock has been identified as a relevant lever for adaptation to changing environmental conditions. The aims of this study are; i) to finely identify the components of the yield influenced by rootstock; ii) to characterise the rootstock × scion interaction; iii) to understand the trade-off between vigour and yield. This study was conducted in 2022 and 2023 in the GreffAdapt experimental vineyard on 2 scions grafted onto 6 rootstock genotypes.
Yield was divided into several components: bud fertility, number of flower caps, bunches and seeds, bunch and 100-berry weight, and rachis architecture. We aim to determine which mechanisms such as variation of wood to bud connectivity at budburst and canopy porosity underlie rootstock effects on yield.
Rootstock had a significant effect on all yield components except fruit set in 2023. Rootstock explained between 7 and 23% of the variance of the traits measured. The 100-berry weight was the parameter most influenced by rootstock. Furthermore, in this study we were able to show a strong rootstock × scion interaction. The dominant factor for yield appears to be the number of berries per bunch, followed by the number of bunches.
The outcomes of this work are improved understanding of the influence of the rootstock on yield components and a classification of rootstocks based on conferred fertility.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Article

Authors

Marine Morel1*, Gaelle Vidal1, Anne-Marie Labandera1, Sarah Jane Cookson1, Martine Donnart1, Laurence Geny2, Elisa Marguerit1

1 EGFV, Univ. Bordeaux, Bordeaux Sciences Agro, INRAE, ISVV, Villenave d’Ornon, France
2 UR Œnologie, Université de Bordeaux, 33140 Villenave d’Ornon, France

Contact the author*

Keywords

Rootstock × scion interaction, Vitis, trade-off, bunch characteristics, inflorescence primordia

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Low and zero alcohol “wines”: impact of different dealcoholization processes on phenol profile and health benefits

Consumers’ demand for non-alcoholic wine has notably increased in the last years: this trend is a consequence of a growing interest in more healthy habits, and as a response to higher alcohol levels in wine due to climate change. In addition, drinking limitations due to physiological/pathological conditions (e.g., pregnancy, diabetes, hepatic disorders), driving regulations, ethical/religious considerations, and high import taxes on alcoholic beverages have positively influenced this marked (us$ 1.6 billion in 2021). International organisation of vine and wine (OIV) established that alcohol content defining wines must not be less than 8.5% vol, (OIV, 2017).

Effects of wine versus de-alcoholised wine on the microbiota-gut-brain axis in a tau-pathology murine model of Alzheimer’s disease

Alzheimer’s Disease (AD) is the most common disorder associated with cognitive impairment and the main cause of dementia globally. Multiple evidence in the last decade suggest that the gut microbiome plays an important role in the pathogenesis and progression of AD via the microbiota-gut-brain axis, a network wherein microbiome and the central nervous system crosstalk via endocrine, immune, neural, and microbial metabolites signalling pathways.

Evaluation of Valdadige DOC “Terra dei Forti” vineyards by zoning approach

La conoscenza dell’interazione genotipo x ambiente e pertanto della caratterizzazione territoriale è di prioritaria importanza nella valutazione dei siti. Grazie alla combinazione di dati GIS

Social and environmental impacts of the adoption of a variety of table grape in the region of vale do São Francisco – Brazil

This study explores and analyzes the socio-environmental implications associated with the cultivation of the “brs-vitoria” table grape variety. Focusing on its adoption by farmers in the vale do submédio São Francisco region in Brazil, this study delves into the diverse impacts and changes brought about since its introduction, encompassing both the social and environmental dimensions of agricultural practices in the area. Embrapa, brazil’s federal agricultural research institution, encompasses a network of 43 thematic research centers spread across the nation.