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.

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…

Plastic debris at vines: carriers of pollutants in the environment?

Modern agriculture employs large amounts of plastics, such as mulching and greenhouse films, thermal covers, plant protection tubes and tying tape. The latter two types are very common in viticulture. Guard tubes are employed to protect young vines from mechanic and atmospheric damage, whilst polymeric tying tape has replaced natural-origin materials to hold the canopy of vines. Both materials are made on synthetic polymers, which include a range of additives to improve their environmental stability remaining in the environment of vineyards for years. During this time, they are exposed to the range of pesticides (fungicides, insecticides and in a lesser extend herbicides) applied to vines.

Efectos del deshojado y de su combinación con el aclareo de Racimos en los componentes básicos de la producción y del Mosto, sobre cv. Tempranillo en la D.O. Ribera del Duero

Las técnicas de manejo del canopy de la vid pueden favorecer la adaptación de los sistemas de conducción a diversas condiciones de cultivo para obtener uva de calidad.

Microbial life in the grapevine: what can we expect from the leaf microbiome?

The above-ground parts of plants, which constitute the phyllosphere, have long been considered devoid of bacteria and fungi, at least in their internal tissues and microbial presence there was long considered a sign of disease. However, recent studies have shown that plants harbour complex bacterial communities, the so-called “microbiome”[1]. We are only beginning to unravel the origin of these bacterial plant inhabitants, their community structure and their roles, which in analogy to the gut microbiome, are likely to be of essential nature. Among their multifaceted metabolic possibilities, bacteria have been recently demonstrated to emit a wide range of volatile organic compounds (VOCs), which can greatly impact the growth and development of both the plant and its disease-causing agents.

What is the fate of oxygen consumed by red wine? Main processes and reaction products

Oxygen consumed by wine is used to oxidize sulfur dioxide and ethanol to form acetaldehyde wine oxygen consumption rate (OCR) was negatively correlated with the initial acetaldehyde level.

Effects of using cationic exchange for reducing pH on the composition and quality of sparkling wine

In this video recording of the IVES science meeting 2023, Fernando Zamora (Department of biochemistry and biotechnology, Faculty of oenology, Universitat Rovira i Virgili, Spain) speaks about the effects of using cationic exchange for reducing pH on the composition and quality of sparkling wine. This presentation is based on an original article accessible for free on OENO One.