terclim by ICS banner
IVES 9 IVES Conference Series 9 Towards a better understanding of the root system diversity and plasticityin young grafted vines using 2D imaging and 3D modelling tools

Towards a better understanding of the root system diversity and plasticityin young grafted vines using 2D imaging and 3D modelling tools

Abstract

Three-dimensional functional-structural root architecture models, which decompose the root system architecture (RSA) into elementary developmental processes such as root emission, axial growth, branching patterns and tropism have become useful tools for (i) reconstructing in silico the spatial and temporal dynamics of root systems in a soil volume, (ii) analyzing their genotypic diversity and plasticity to the environment, and (iii) overcoming the bottleneck associated with their visualization and measurement in situ. Here, we present an original work on RSA phenotyping and modelling in grapevine. First, we developed 2D image-based analysis pipelines to quantify morphological and architectural traits in young grafts. Second, we parametrized and validated the 3D root model Archisimple on two rootstock genotypes (RGM, 1103P) grafted with V. vinifera Cabernet-Sauvignon and grown in different controlled conditions (rhizotrons, pots, tubes). Finally, we experimentally studied the sensitivity of RSA to initial carbon availability using hardwood cuttings of different lengths (8, 20, 30 and 50 cm). Results showed that the number of adventitious roots and their emergence rate were affected by changes in cutting length, whereas RSA traits related to elongation and branching remained relatively stable. Simulated root systems differed between rootstocks, with RGM having more shallow roots and less deep root length density than 1103P. This study highlighted how a modelling approach provides a deeper understanding of the genetic, environmental, and endogenous factors that determine rooting ability and early development of RSA. This knowledge can be applied in nurseries, for example, to improve the successful establishment of grafted vines after planting.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Mathieu Larrey1*, Jean-Pascal Tandonnet1, Clément Saint Cast1, Philippe Vivin1

1 EGFV, University of Bordeaux, Bordeaux Sciences Agro, INRAE, ISVV, 33882 Villenave d’Ornon, France

Contact the author*

Keywords

root system architecture, functional-structural root architecture model, root phenotyping, rootstock

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Comparison between the volatile chemical profile of two different blends for PDO “Valpolicella Superiore”

Valpolicella is a famous wine producing region located in the north of Verona close to Garda lake and owes its fame above all to the production of two Protected Designation of Origins (PDOs) withered wines: Amarone and Recioto. Nowadays the production of another PDO, Valpolicella Superiore is gaining more attention by the consumers, increasing the interest of the wineries to improve the quality of this wines

Optimised extraction and preliminary characterisation of mannoproteins from non-Saccharomyces wine yeasts

The use of non-Saccharomyces yeast species for the improvement of wine technological and oenological properties is a topic that has gained much interest in recent years [1]. Their application as co-starter cultures sequential to the inoculation of Saccharomyces cerevisiae and in aging on the lees has been shown to improve aspects such as protein stability and mouthfeel [2].

Influence of Lactiplantibacillus plantarum and Oenococcus oeni strains on sensory profile of sicilian nero d’avola wine after malolactic fermentation.

AIM: Malolactic fermentation is a process of decarboxylation of L-malic acid into L-lactic acid and carbon dioxide that leads to deacidification, modification of odors and flavors of wines [1]

Applying value proposition design to collective strategic actions in family wineries: enhancing territorial resources in Vale dos Vinhedos, Brazil

The study aims to propose collective strategic actions for family wineries, promoting their competitiveness and the valorization of territorial resources.

Utilizing ozone for the management of powdery mildew (Erysiphe necator Schwein.) in vineyards: potential and challenges

Powdery mildew, caused by fungal pathogens, poses a significant threat to grapevines in the DOCa Rioja region. In efforts to improve control strategies while reducing reliance on conventional phytosanitary products, ozone could constitute a potential alternative. However, it has short persistence, thus requiring frequent treatments. This study aimed to assess the suitability of ozone as an active substance for controlling powdery mildew within a phytosanitary strategy aimed at reducing conventional phytosanitary product usage. The strategy integrating ozone with conventional products yielded powdery mildew levels comparable to conventional treatments in both disease incidence and severity.