terclim by ICS banner
IVES 9 IVES Conference Series 9 Optimization of in vitro establishment of grapevine varieties for fast micropropagation 

Optimization of in vitro establishment of grapevine varieties for fast micropropagation 

Abstract

Micropropagation is an important alternative to conventional methods of plant propagation. The objective of this study was to optimize a protocol for in vitro micropropagation of selected grapevine hybrids (H19 and H20) that are included in our breeding program. For the sprouting initiation experiment, nodal cuttings with only one axillary bud from two hybrids were separated, disinfected, and cultivated in 50% Murashige Skoog nutrient medium (½ MS) and Woody Plant Medium (WPM), adding 4.4 µM benzyladenine (BA) in both mediums. To optimize root induction, the sprouts obtained were cultivated in ½ MS and WPM, testing doses of 2, 4 and 8 µM Indole Acetic Acid (IAA) respectively. According to the results, the highest percentage of sprouted buds was obtained in ½ MS + 4.4 µM BA for H19 and H20 (79 and 82%, respectively) at 14 days. At 28 days, the percentage was lower in all of cases. Regarding the rooted sprouts, the highest percentage obtained was 52% in the WPM medium for H19 and 46% in the WPM + 4µM IAA medium for H20 at 14 days. At 28 days, however, the highest percentage of rooted shoots was in ½ MS + 2µM AIA medium for H19 and H20 (89 and 93%, respectively). In conclusion, the best way to micropropagate these hybrids in a short period of time is ½ MS + 4.4 µM BA and WPM for H19, and ½ MS + 4.4µM BA and WPM + 4µM IAA for H20.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

María Isabel Serrano Sánchez1*, Manuel Tornel Martínez1

1 Instituto Murciano de Desarrollo Agrario y Medioambiental (IMIDA). Equipo de Mejora de Uva de Mesa. C/ Mayor, s/n, 30150 Alberca Las Torres, Murcia (Spain)

Contact the author*

Keywords

micropropagation, rooting, in vitro culture, IAA, BA

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Sensory quality of wines as a trait in MAS grape vine breeding – sensory insights from multiple vintages in a F1 breeding population

In the context of the three global crises of global warming, loss of biodiversity and environmental pollution, current agricultural practices need to be reconsidered [1]. Viticulture in particular can contribute to this by optimising plant protection [2].

Read More

Balearic varieties of grapevine: study of genetic variability in the response to water stress

The photosynthetic characteristics of twenty varieties of grapevine (Vitis vinifera L.) from Mallorca (Balearic Islands, Spain) and two widespread varieties

Read More

The international Internet site of the geoviticulture MCC system

The “Geoviticulture Multicriteria Climatic Classification (MCC) System” was developed to characterize the climate of the wine producing regions of the world.

Read More

SENSORY DEFINITION OF A TECHNICAL UNAVOIDABLE TRANSFER OF AROMA COMPOUNDS VIA SEALING IN A BOTTLING LINE IN ORDER TO PREVENT PROSECUTION DUE TO FRAUDULENT AROMATIZATION OF A SUBSEQUENTLY FILLED WINE

In 2020, 12% of all bottled German wines were aromatized, which may increase further due to rising popularity of dealcoholized wines. As sealing polymers of a bottling line absorb aroma compounds and may release them into regular wines in the next filling¹, this unintentional carry-over bears the risk to violate the legal ban of any aromatization of regular wine. However, following EU legislation, German food control authorities accept a technical unavoidable transfer of aroma compounds, if this is of no sensory significance.

Read More

INFLUENCE OF GRAPE RIPENESS ON MACROMOLECULES EXTRACTABILITY FROM GRAPE SKIN TISSUES AND GRAPE SEEDS DURING WINEMAKING

A consequence of climate change is the modification of grape harvest quality and physico-chemical parameters of the obtained wine: increase in alcoholic degree, decrease in pH, and modification of the extractability of macromolecules, which leads to problems of microbiological, tartaric, colour and colloidal stability. In order to respond to these problems, the winemaking processes must be anticipated and adapted with a better knowledge of macromolecule extractability in grapes and their evolution, according to the grape variety, vintage and winemaking process. The purpose of this study was to understand 1) how the harvest date can influence the extractability of macromolecules, polysaccharides and phenolic compounds, which are responsible for wine stability 2) how to adapt the winemaking process to the harvest date in order to optimise wine quality.

Read More