terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Preliminary results of water status and metabolite content of three new crossbreed winegrape genotypes

Preliminary results of water status and metabolite content of three new crossbreed winegrape genotypes

Abstract

This study presents the preliminary results obtained in 2022, of the evaluation of three new crossbreed winegrape genotypes and their parental varieties, grown under controlled irrigation (60% ETc) and rainfed conditions in a wine-growing area with scarcity of water and high temperatures (Murcia, southeast Spain). The genotypes MC16 and MC80 were obtained from crosses between the varieties ‘Monastrell’ and ‘Cabernet Sauvignon’, and MS104 from crosses between ‘Monastrell’ and ‘Syrah’ [1]. The objective of this study was to analyse the physiological response and vegetative development of the 6 genotypes under the two irrigation conditions, and to study their effect on the content of soluble sugars and chlorophyll in the leaf. In rainfed conditions, the new genotypes presented lower reductions in all physiological and vegetative growth parameters, compared to those observed in ‘Monastrell’ (the reference variety in the area). Regarding stem water potential (ΨS), ‘Monastrell’ showed the greatest reduction (19%) and MS104 the lowest (1%). The parental varieties showed a greater reduction in stomatal conductance (gS) and photosynthetic activity (AN) values than the crossbreeds. Regarding vegetative growth, ‘Monastrell’ showed the greatest reductions, both for stem size and pruning weight (43% and 69%, respectively); while MC16 presents the lowest (4% and 13%, respectively). On the other hand, variations of chlorophyll and total soluble sugars content in the leaf were observed between genotypes. Nevertheless, only the average chlorophyll content was significantly affected by the irrigation treatment. The analysis of the new genotypes during successive years will allow us to identify if some of the crosses obtained could adapt better than ‘Monastrell’ to the semi-arid conditions of Murcia.

Acknowledgements: The authors thank Carlos V. Padilla, Eliseo Salmerón and Miguel Alcaraz for crop health control. This work was financed by the Ministerio de Ciencia e Innovación via project PID2020-119263RR-100.

References:

1)  Ruiz-García, et al. (2018) Nuevas variedades de vid obtenidas en la Región de Murcia. Actas Hortic., 80, 226–229.

DOI:

Publication date: October 6, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Diego José Fernández-López1*, Josefa María Navarro2*, Adrián Yepes-Hita1, Eva María Arques2, José Antonio Martínez-Jiménez1, Pascual Romero2, Leonor Ruiz-García1

1 Molecular Genetic Improvement Team, Instituto Murciano de Investigación y Desarollo Agrario y Medi-oambiental (IMIDA), C/ Mayor s/n, La Alberca, 30150 Murcia, Spain
2 Irrigation and Stress Physiology Team, Instituto Murciano de Investigación y Desarollo Agrario y Medi-oambiental (IMIDA), C/ Mayor s/n, La Alberca, 30150 Murcia, Spain

Contact the author*

Keywords

crossbreeding, drought, water potential, gas exchange, chlorophyll, sugars

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Combined use of leaf removal and natural shading to delay grape ripening in Manto negro (Vitis vinifera L.) under deficit irrigation 

The increasingly frequent heat waves during grape ripening pose challenges for premium wine grape production. This makes the development of irrigation and canopy management techniques of great importance to maximize yield and grape quality. A field experiment was carried out during 2021 and 2022 using Manto negro wine grapes to study the effect of two irrigation strategies and different light exposure levels on grape quality.

Read More

The use of plasma activated water in barrel disinfection: impact on oak wood composition

The use of barrels is a practice that improves the quality of wines. The porous structure of wood favors the accumulation of microorganisms that can deteriorate the quality of wines so that barrel cleaning and sanitizing treatments are essential. The burning of sulphur discs has been the most common practice in winemaking because ots biocide effect. Nevertheless, its effectiveness is still insufficient and it is harmful for human health.

Read More

Drought responses of grapevine cultivars under different environments

Using grapevine genetic diversity is one of the strategies to adapt viticulture to climate change. In this sense, assessing the plasticity of cultivars in their responses to environmental conditions is essential. For this purpose, the drought tolerance of Grenache, Tempranillo and Semillon cultivars grafted onto SO4 was evaluated at two experimental vineyards, one located in Valencia (Spain) and the other in Bordeaux (France). This was done by assessing gas exchange parameters, water relations and leaf hydraulic traits at the end of the season.

Read More

Sensory profile of wines obtained from disease-resistant varieties in La Rioja

The European wine industry is facing multiple challenges derived from climate change and the pressure of different fungal diseases that are compromising the production of traditional varieties. A sustainable alternative maybe the adoption of resistant varieties.
In this study, we have evaluated the enological potential of 9 resistant varieties (5 white and 4 red varieties) in La Rioja. Microvinifications were carried out with three biological replications. Oenological parameters were very diverse with acid content varying from 2.6 g/L to 6.6 g/L.

Read More

Use of UHPH to improve the implantation of non-Saccharomyces yeasts

Ultra High-Pressure Homogenization (UHPH) is a high-pressure pumping at 300 MPa (>200 MPa) with a subsequent depressurization against a highly resistant valve made of tungsten carbide covered by ceramic materials or carbon nanoparticles. The intense impact and shear efforts produce the nano-fragmentation of colloidal biopolymers including the elimination of microorganism (pasteurization or sterilization depending on in-valve temperature) and the inactivation of enzymes.

Read More