terclim by ICS banner
IVES 9 IVES Conference Series 9 GiESCO 9 How to improve the success of dead vine replacement: insights into the impacts of young plant‘s environment 

How to improve the success of dead vine replacement: insights into the impacts of young plant‘s environment 

Abstract

Context and purpose of the study – Grapevine faces multiple biotic and/or abiotic stresses, which are interrelated. Depending on their incidence, they can have a negative impact on the development and production of the plant, but also on its longevity, leading to vine dieback. One of the consequences of vine dieback on production is the increased replacement rate of dead or missing vines within a parcel. Replacements can be very costly and time consuming for the vinegrower, especially because success (i.e. defined by the survival and growth of the young vine planted in place of the dead plant) is not guaranteed every year. Factors influencing the success of this replacement can be grouped into two main categories: the plant environment and the vinegrower practices. The aim of this study was to quantify plant mortality after such a replacement in different vineyards over several years, and the influence of the plant’s environment on this mortality

Material and methods – For four years, plants replacements were carried out in production vineyards. A set of 83 batches distributed in 44 parcels corresponding to more than 7500 replacement plants were monitored. The year and density of planting, rootstock, and  variety as well as soil type and maintenance were recorded for each parcel. Plant survival was monitored twice a year.

Results – As the plants were coming into production, the average survival rate was 83% of the initial batches of plantings. However, survival rates varied greatly depending on plot characteristics. Multi-year monitoring of plant survival showed that 60% of mortality occurred within the year following plant replacement. Over the study period, the average first-year mortality rate of replaced plants ranged from 7.4 to 17.1%, highlighting a vintage effect. In the second and third years after replacement, mortality was found to be higher in late winter than during the growing season. Thus, one hypotheses proposed is that the reserve status of the plant material may be more critical to the survival of these plants than the impacts of tillage or lack of water during the growing season. Nevertheless, mortality during growing season accounted for one-third of total mortality in a given year, which could potentially be reduced through better care of the young plants. Statistical analyses revealed no variety effect of and no date of the first plantation effect of the initial parcel while a significant soil effect was detected. This experimental monitoring should make it possible to provide answers on the impact of the environment of the replacement plant on its survival over time, its development and its production. These results highlight perspectives to improve the survival of replacement plants in vineyards.

DOI:

Publication date: July 5, 2023

Issue: GiESCO 2023

Type: Poster

Authors

Coralie DEWASME1*, Elisa MARGUERIT1, Severine MARY2, Lauren INCHBOARD2, Guillaume DARRIEUTORT2, Philippe VIVIN1, Virginie LAUVERGEAT1

1EGFV, Univ. Bordeaux, Bordeaux Sciences Agro, INRAE, ISVV, F-33882 Villenave d’Ornon, France
2Vitinnov, Bordeaux-Sciences Agro, ISVV, 33170 Gradignan France

Contact the author*

Keywords

grapevine, survival, mortality, stresses, dieback

Tags

GiESCO | GIESCO 2023 | IVES Conference Series

Citation

Related articles…

Climats: a model of terroir-based winegrowing recognized by UNESCO

In Burgundy, a climat has nothing to do with the weather but accurately designates a named vine plot, often centuries-old, which produces a singular wine. This wine is the combination of history, the natural environment (relief, type of soil, exposure to the sun), a grape variety and know-how going back thousands of years. The grapes of each climat are harvested separately and the wine is made from a single grape variety and has a unique name featured on the bottle. Romanée conti, clos de vougeot, montrachet, musigny, corton…

Lean management to improve sustainability in wine sector: an exploratory study in the Prosecco DOC appellation

The contemporary wine sector confronts a formidable array of challenges, including burgeoning production costs and the constricted availability of natural resources. Heightened consumer awareness regarding sustainability issues further compounds these pressures, compelling companies to adopt more judicious resource utilization strategies. In response to these imperatives, there is a growing recognition of the need to overhaul production methodologies within the wine industry with a view to minimizing inputs and eliminating waste.

Emosensory profile and chemical characterization of wine vinegar from the Douro and Rioja demarcated regions

Wine vinegars have a tangy flavor and are versatile in cooking. They’ve been used since the neolithic period and are now used as microbial inhibitors and acidifiers. They’re low in calories, have antioxidants, and have a long shelf life, but quality may decrease after opening. The objective of this study focuses on the physical-chemical, sensory, and emotional characterization of wine vinegar samples from the douro demarcated region and la rioja. In total, 22 samples of wine vinegar were analyzed at the time of opening.

Where the sky is no limit – the transformation of wine marketing through text-to-video generation AI models

The introduction of ai-driven tools in digital content creation represents a significant shift in the landscape of marketing, particularly for industries reliant on rich visual storytelling such as the wine sector. The development of ai models like openai’s sora, runway’s gen-2 or google’s lumiere, which can generate realistic video content from textual descriptions, offers promising new avenues for enhancing brand narrative and consumer engagement. This research explores the potential of text-to-video (t2v) ai models to revolutionize wine marketing by creating dynamic, engaging content that captures the essence of vineyards and their products without the need for traditional video production processes.

A century of evolution of the rules relating to grape varieties  in the regulation of French wine AOCs

To characterize a wine, the most frequently used criteria describe its color, its origin, the grape varieties from which they come, or even for white wines its residual sugar content (dry, semi-dry, sweet). In france, the system of appellations of origin set up in 1919 was initially based solely on the notoriety and origin of the wines. But given the unfavorable consequences that this lack of details generated, the public authorities quickly integrated in 1927 into the “capus” law criteria for access to designations of origin, relating to the specific characteristics of the soils of the vineyards and the grape varieties used, in particular exclusion of interspecific hybrid varieties. In 1935 the creation of the aoc system confirmed the interest in precisely defining all the production conditions that must be implemented to be able to claim the benefit of an aoc, and grape varieties were an essential condition for acquisition.