terclim by ICS banner
IVES 9 IVES Conference Series 9 Characterizing graft union formation in different scion/rootstock combinations of grapevine 

Characterizing graft union formation in different scion/rootstock combinations of grapevine 

Abstract

In most viticultural regions, grapevines are cultivated grafted, employing either hybrid or pure species of various American Vitis spp., such as V. berlandieri, V. rupestris, and V. riparia, as grapevine rootstocks. These rootstocks play a crucial role in providing resistance to the Phylloxera insect pest. Beyond Phylloxera resistance, it is desirable for grapevine rootstocks to exhibit resistance to other soil-borne pathogens and adaptability to abiotic stress conditions. The introduction of new rootstocks holds promise for adapting agriculture to climate change without altering the characteristics of the final harvested product. However, achieving high success rates in grafting for new rootstock genotypes is imperative. This study aims to develop quantitative techniques for characterizing graft union formation in different grapevine scion/rootstock combinations. The research focuses on the initial months after grafting, examining factors such as the quantity of callus (both fresh and dry mass) and the mechanical strength of the graft union. Interestingly, the quantity of callus at the graft interface varied among genotypes and did not necessarily correlate with the mechanical strength of the graft union. Challenges in quantitatively phenotyping different stages of graft union formation have impeded the identification of genetic determinants for grafting success across plant species. To address this bottleneck, various quantitative techniques are being developed to elucidate the genetic architecture of graft union formation in grapevine.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Marilou Camboué1, Jean-Pascal Tandonnet1, Marine Morel1, Elisa Marguerit1, Sarah Jane Cookson1*

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

Contact the author*

Keywords

scion, rootstock, grafting, callus, mechanical strength

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Discriminant value of soil properties for terroir zoning

Environmental analysis (climate, vegetation, geomorfoloy-lanscape, lithology and soil) and its integration in a quality index taking the Appellation of Origin as the sole universe are used as general methodology for terroir zoning in Spain (Sotés and Gómez-Miguel, 1986-2005). This methodology is also applied to specific aspects of different Spanish Appellations of Origin (size, distribution and landscape peculiarities and vine occupation index).

Read More

Mitigating climate change impacts in the wine supply chain through integrated energy and water efficiency assessment

The wine industry is increasingly exposed to the combined effects of climate change, resource scarcity, and rising consumer expectations regarding environmental responsibility.

Read More

Postharvest elicitors and metabolic changes in wine grape berries

Wine grape berries respond to postharvest treatments with specific gaseous elicitors in terms of metabolic changes and composition. Short-term (3 days) high (30 KPa) CO2 treatment affects phenol compound concentration in skins of ‘Trebbiano toscano’ berries.

Read More

WINE AS AN EMOTIONAL AND AESTHETIC OBJECT: IMPACT OF EXPERTISE

Wine tasting has been shown to provide emotions to tasters (Coste et al. 2018). How will expertise impact this emotional response? Burnham and Skilleås (2012) reported that the cultural, experiential, and aesthetic competencies characterize an expert in wine compared to a novice. Although there is no consensual definition of an aesthetic experience, Burnham and Skilleås (2012) reported that aesthetic appreciation is “disinterested, normative for others and communicable” in comparison to sensory pleasure.

Read More

Identification of important genomic regions controlling resistance to biotic and abiotic stresses in Vitis sp. through QTL meta-analysis

In the context of global change, the environmental conditions are expected to be more stressful for viticulture. The choice of the rootstock may play a crucial role to improve the adaptation of viticulture to new biotic and abiotic threats (Ollat et al., 2016). However, the selection of interesting traits in rootstock breeding programs is complex because of the combination of multiple targets in a same ideotype. In this sense, the integration of studies about the genetic architecture for desired biotic and abiotic response traits allow us to identify genomic regions to combine and those with interesting pleiotropic effects.

Read More