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…

Polysaccharide families of lyophilized extracts obtained from unfermented varietal grape pomaces

The recovery of bioactive compounds from grape and wine by-products is currently an important objective for revaluation and sustainability. Grape pomace is one of the main by-products and is a rich source of some bioactive compounds. The aim of this study was to evaluate the polysaccharide (PS) composition of extracts obtained from pomaces of different white and red grape varieties of Castilla y León. Grape pomaces were obtained after the pressing in the winemaking process.

Read More

Quantification of polysaccharides of variety Pomaces of the D.O.Ca Rioja

Pomace is one of the main residues generated by the wine industry and represents an environmental problem. Currently, there is a growing interest in the revaluation of these products because different bioactive compounds can be obtained from them, such as polyphenols, grape seed oils and polysaccharides. Red grape pomace can be an important source of polysaccharides, but they are currently little studied and even less with viable and environmental extraction processes (green extraction), such as flash extraction. The residual amount of the fraction rich in pectin (residual pulp) and component rich in hemicellulose in the pomace and the strength of association of the pectin with the cellulose-xyloglucan network depend on the degree of extractability of the polysaccharides in red winemaking and on the winemaking conditions.

Read More

Implications of the nature of organic mulches used in vineyards on grapevine water status, yield, berry quality and biological soil health  

Climate emergency is going to affect the agricultural suistainability, wine grapes being probably one of the crops more sensitive to environmental constraints. In this context, mitigation strategies such as the revalorization of agricultural wastes are paramount to cope with the current challenges. The use of organic mulches has been reported to reduce soil water evaporation and improve vine water status, reduce soil erosion, and increase soil organic matter with little impact on berry quality. However, less is known about their effects on the microbiote of vineyards.

Read More

Association between dietary pattern and wine consumption and Alzheimer’s disease in a cohort from La Rioja (Spain)

Addressing modifiable risk factors is the most promising strategy to prevent/delay Alzheimer Disease (AD)[1]. The aim of the study was to establish the connections between dietetic habits, wine consumption and AD. Thus, 98 volunteers were recruited: 50 diagnosed as AD and 48 healthy/controls. The Food Frequency Questionnaire (FFQ) was used for dietary patterns assessment and, based on these data, the Mind Diet Score was calculated. (Poly)phenol metabolites (especially derived from wine consumption) were analyzed by UPLC-QqQ-MS/MS in 24-h urine samples to confirm dietary (poly)phenol consumption.

Read More

The characterization of Vitis vinifera L cv. Cabernet sauvignon: the contribution of Ecklonia maxima seaweed extract

Biostimulants and biofertilizers are considered environmentally friendly and cost-effective alternatives to synthetic fertilizers, plant growth regulators and crop improvement products. Broadly, plant biostimulants are expected to improve nutrient use efficiency, tolerance to abiotic stress, quality traits and availability of nutrients in the soil or rhizosphere. Currently, seaweed extracts account for more than 33% of the total plant biostimulant market. Within this category, Ascophyllum nodosum (AN), is the most widely studied and applied in biostimulant formulations.

Read More