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…

Chemical activation of ABA signaling in grapevine through ABA receptor agonists

Grapevine (Vitis vinifera) and its derived products, in terms of cultivated area and economic volume, constitute the most relevant fruit crop in the world (7.5 million cultivated hectares). In the current context of climate change, the wine sector faces unprecedented challenges to satisfy a growing demand for wines of greater quality through sustainable viticulture. Global warming threatens quality wine production in Mediterranean wine regions in particular. The increase in heatwaves and drought episodes accelerate the vine phenology and alter the ripening and composition of grapes and wine. Extreme abiotic stress episodes compromise grape production and plant survival, intensifying the pressure on the use of limited resources like water. Abscisic acid (ABA) is an important hormone in the ripening of certain fruits and in plant response to abiotic stress.

Potential of native Uruguayan yeast strains for production of Tannat wine

Must fermentation is a complex process influenced by various factors, especially microbiological activities. The characteristics and quality of the resulting wine are closely linked to the stages that unfold throughout this progression.

Q-NMR measurements: quantitative analysis of wine composition applied to Bordeaux red wines authenticity control

Traceability of wine is today a consumer demand and a scientific challenge. The methods of analysis must be able to control three fundamental parameters: the geographical origin, the grape varieties, and the vintage.

Unraveling vineyard site from vintage contributions: Elemental composition of site-specific Pinot noir wines across multiple vintages

Understanding vineyard site contribution to elemental composition of wines has, historically, been limited due to lack of continuity across multiple vintages, as well as lack of uniformity in scion clone and lack of controlled pilot-scale winemaking conditions.  We recently completed our fifth vintage, and have elemental composition characterizing wines from four vintages (2015–2018)

Aromatic profile of chardonnay – clone 809: from berry to sparkling wine in an altitude vineyard

ine consumption is linked to the aromatic profile, consumer acceptance, and reflects the viticultural and oenological practices applied, together with the study related to clones is a way to evaluate the adaptation