terclim by ICS banner
IVES 9 IVES Conference Series 9 Evaluation of wood starch content on bench grafting success rate in grapevine

Evaluation of wood starch content on bench grafting success rate in grapevine

Abstract

Since the emergence of phylloxera, grafting has been the most used propagation method in viticulture. Despite all the improvement measures implemented in the nurseries, it is frequent that graft success rates vary depending on the nursery process and scion/rootstock combinations. The reasons behind this unsatisfactory behaviour are still unknown and can be diverse, although carbohydrate reserves might be hypothesised to be crucial, since callus, root, and new tissue formation will be built based on them. In order to identify the effect of carbohydrates on grafting success, nine combinations were established based on the starch content in grapevine scionwoods (cv. Tempranillo clone VN69) and rootstocks cuttings (110 Richter clone 237) used for grafting: Low (L), Medium (M), High (H). To perform this work, more than 90 plants were omega grafted per carbohydrate content combination and, after the callusing period, transferred to the rooting field. In August, nine plants per combination were uprooted and the grafting success rate was recorded as well as the vegetative growth and root system characteristics (number and diameter). Likewise, histological and histochemical characterization (cellulose, starch, callose and lignin) was performed at the graft interface. The implications of carbohydrate content on success rate will be discussed, comparing the grafting success rates obtained with potential symptoms of incompatibility, irregular cell arrangement, slower vascular differentiation, or persistence of the necrotic layer.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Ana Villa-Llop1,2*, Ana Pina3,4, Patricia Irisarri3,4, Melany Jiménez1, Luis Gonzaga Santesteban1

1 Departement of Agronomy, Biotechnology and Food Science, Univ. Pública de Navarra, Pamplona, Navarra, Spain
2 Vitis Navarra Nursery, Larraga, Navarra, Spain
3 Departamento de Ciencia Vegetal, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Avenida Montañana 930, 50059, Zaragoza, Spain
4Instituto Agroalimentario de Aragón-IA2 (CITA-Universidad de Zaragoza), 50013 Zaragoza, Spain

Contact the author*

Keywords

histology, scion-rootstock interaction, starch, success rate, viticulture

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Exploring the impact of yeast derivatives on aromatic and sensory profiles of white and red wines: a multifactorial analysis

Specific inactivated yeast derivatives (SYDS) are obtained from s. cerevisiae yeasts by various processes (thermal, mechanical, and enzymatic) and have diverse oenological applications to improve wine quality. However, different impacts on wine sensory and aromas were reported, depending on syds types and fractions, wine matrices, and experimental settings. Few works have examined the impact of SYDS on aromas considering also those on wine macromolecules influencing organoleptic properties.

Dissecting the dual role of light regarding the plasticity of grape physiology and gene regulation through daylength simulation in a semi-arid region

Context and purpose of the study. Daylength is a key climatic factor within the terroir concept. However, the complex interplay of multiple variables in regions with varying daylengths makes it challenging to isolate and investigate this specific factor.

Two dimensions, one mission: unlocking grape composition by GC × GC

Aroma is one of the most important attributes that determine consumer’s perception of the sensory quality of wine and varietal typicity.

Analysing consumers’ decision-making process for non-alcoholic spirit drinks and dehalcolized aromatized wines 

In recent years, the consumption of alcoholic beverages is changing, driven by evolving consumer preferences and societal trends, including a wave of health consciousness. Among these changes, the emergence and proliferation of nolo (no alcohol/low alcohol) alcoholic beverages have gained significant attention within the industry. Nolo alcohol beverages are produced to emulate the appearance, aroma, and taste of alcoholic beverages, potentially facilitating a sense of social integration when consuming a product that closely resembles alcohol.

Soil microbial and arthropod biodiversity under organic and biodynamic viticulture

Aims: The aim of the study was to investigate whether organic or biodynamic management have a long-term impact on 1) the microbial biomass and enzymatic activity in the soil, 2) the soil microbial community, 3) flying as well as soil living arthropods and associated fungi.