terclim by ICS banner
IVES 9 IVES Conference Series 9 Simulated climate change in a Mediterranean organic vineyard altered the plant physiology and decreased the vine production

Simulated climate change in a Mediterranean organic vineyard altered the plant physiology and decreased the vine production

Abstract

This study focuses on investigating the effects of climate change on the plant physiology and berries of Vitis vinifera cv “Monastrell” in a commercial vineyard managed organically in Southeastern Spain (Jumilla, Murcia).  For this purpose, open top chambers and rainout shelters were employed to simulate warming (~2-7 ºC, W) and rainfall reduction (~30%, RR) respectively. Additionally, a combination of both treatments (W+RR) was employed. Vines without either top chambers or rainout shelters were considered as control (C). The experiment was established in February of 2023. Predawn leaf water potential (measured using a pressure chamber), stomatal conductance (assessed with a porometer at mid-morning) and leaf chlorophyll and flavonoid content (measured using the Dualex® leaf clip sensor) were analyzed at veraison (5 months after the installation of structures). At harvest, the yield and dehydration rate of grapes were determined. The results revealed severe water stress (< -0.8 MPa) in all treatments, with a significant reduction in stomatal conductance in leaves of vines under the W+RR treatment. Moreover, warming treatments (W and W+RR) led to a significant decrease in flavonoid content. At harvest, grapes from the warming treatments resulted in a higher dehydration rate, showing a significant decrease in cluster weight compared to C and RR treatments. In conclusion, during the first year, treatments involving temperature increases and water restriction had a similar effect on the stress water indicators used; however, warming treatments induced a different metabolic response, influencing flavonoids and berries.

Acknowledgments : Funded by PDI2021124382OB-I00 project of the State Research Agency (Ministry of Science and Innovation, Spain).

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

L. Martín1, M.V. Alarcón2, M.E. Valdés3, M.M. Alguacil4

Plant Protection. Instituto de Investigaciones Agrarias Finca La Orden-Valdesequera. CICYTEX, 06187 Guadajira (Spain)
2 Agronomy of woody and horticultural crops. Instituto de Investigaciones Agrarias Finca La Orden-Valdesequera, CICYTEX, 06187 Guadajira (Spain)
3 Food and Agriculture Technology Institute of Extremadura (CICYTEX_INTAEX). Adolfo Suárez s/n Avenue, Badajoz, 06071, (Spain)
4CSIC-Centro de Edafología y Biología Aplicada del Segura. Department of Soil and Water Conservation. P.O. Box 164, Campus de Espinardo 30100-Murcia (Spain)

Contact the author*

Keywords

Monastrell, open-top chambers, rainout shelters, organic farming

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Non-destructive his based analysis for shelf-life evaluation of table grape 

Fast, accurate, and non-destructive analytical techniques based on hyperspectral imaging (hsi) represent effective tools for food quality evaluation. A visible change in the appearance of a fresh product often negatively impacts the perceived quality from a consumer’s point of view.

CHARACTERIZATION OF THE VOLATILE COMPOUNDS PROFILE OF COMMERCIAL GRAPPAS OBTAINED FROM THE POMACE OF AMARONE WINES

Grappa is a traditional Italian alcoholic beverage, with an alcohol content generally between 40-60% vol., obtained from the distillation of grape pomace used for the production of wine. Grappa are often aged in wooden barrels. There are various types of grappa: young, aromatic, aged, extra-aged depending on whether the distillate comes from aromatic vines or is aged in wooden barrels for shorter or longer periods. There is also flavored grappa if herbs, fruit or roots are added. All this makes it an extremely heterogeneous product both from an organoleptic and compositional point of view.

Enhancing vineyard resilience: evaluating sustainable practices in the Douro demarcated region

In mediterranean agriculture, sustainability and productivity are seriously threatened by climate change and water scarcity. This situation is exacerbated by poor management practices such as excessive use of agrochemicals, overgrazing, and monoculture. The Douro demarcated region (ddr) is an emblematic region, classified world heritage site by UNESCO in 2001. Viticulture is the main agricultural activity in DDR, widely known to produce port wine.

La vinificación de las uvas aromáticas: Moscateles y Malvasías

Las uvas aromáticas se pueden dividir en dos clases, Moscateles y Malvasías, dependiendo del hecho de que el linalol o el geraniol, respectivamente, sean los alcoholes terpénicos monohidroxilados que

Regenerative agricultural approaches to improve ecosystem services in Mediterranean vineyards

REVINE is a 3 year European projected funded by PRIMA programme which proposes the adoption of regenerative agriculture practices with an innovative and original perspective, in order to improve the resilience of vineyards to climate change in the Mediterranean area. The potential for innovation lies in developing and combining new approaches that make agriculture more environmentally sustainable and enable a circular economy capable of improving farmers’ incomes. Primarily REVINE aims to improve soil health and biodiversity by promoting the multiplication of soil saprophytic microorganisms and the presence of useful microorganisms linked to the life cycle of the plant, such as rhizobacteria (PGPR) and fungi (PGPF) that promote plant growth which, in addition to increasing plant performance, increase tolerance to biotic and abiotic stresses.