terclim by ICS banner
IVES 9 IVES Conference Series 9 Decline of rootstock-mediated physiological responses in Tempranillo grapevines by prolonged extreme conditions

Decline of rootstock-mediated physiological responses in Tempranillo grapevines by prolonged extreme conditions

Abstract

Agriculture faces many global warming challenges especially in the Mediterranean region. Many strategies have been proposed in viticulture to manage global warming. Rootstocks are among them since they may affect water uptake and the scion’s performance.

The study conducted in La Rioja, Spain, aimed to investigate the impact of different rootstocks (1103P and 161-49C) on the performance of the Tempranillo grapevine scion over a three-day cycles under drought and extreme conditions, specifically during a heatwave in July 2022, with maximum air temperatures up to 40ºC and average daily temperatures of 29.1ºC. The physiological parameters measured included stomatal conductance (gs), photosynthesis (AN), transpiration (E), mid-day (ѰMD), intrinsic water use efficiency (WUEi) and abscisic acid (ABA) concentrations.

The results indicated that water stress treatment significantly affected all physiological parameters throughout the three-day cycle. Interestingly, the rootstocks did not show a significant impact on AN or gs, except for water potential. The rootstock effect on AN and gs was observed during the initial hours of the day on specific days, particularly coinciding with the lowest daytime temperature.

Notably, ABA levels were affected by water stress only on the first day of measurement, at the beginning of the heatwave. However, this effect disappeared on subsequent days (195 and 200) when ABA concentrations reached their highest levels. Surprisingly, the rootstocks did not influence ABA levels.

Our data suggest that, the physiological effects triggered by the rootstocks in grapevine tend to diminish under prolonged extreme events such as heat waves, high temperatures and water scarcity.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

David Labarga1, Andreu Mairata1, Miguel Puelles1, Ignacio Vicente-Diez1, Javier Manzanares1, Elisabet Vaquero1, Alfonso Albacete2, Álvaro Galán1, Alicia Pou1*

1 Instituto de Ciencias de la Vid y del Vino, CSIC, Gobierno de la Rioja, Universidad de La Rioja, 26006 Logroño, Spain
2 Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura (CEBAS), Consejo Superior de Investigaciones Científicas (CSIC), Campus Universitario de Espinardo, Espinardo, 30100 Murcia, Spain

Contact the author*

Keywords

Global warming, drought, plant physiology, phytohormones, vineyard

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Regional discrimination of shiraz using targeted and non-targeted analytical approaches

Aims: Shiraz is the most widely cultivated grape variety in Australia, and is grown under a range of viticultural and climatic conditions. Given its importance to the Australian wine sector, a number of studies have been conducted in recent years which involved a comprehensive assessment of grape composition, in order to objectively predict wine quality and style outcomes.

Read More

The effects of perennial cover crop management on soil temperature and vine water status

The implications of perennial cover crop management on vine vigor and yield have been well documented. However, whereas multiple studies show that cover crop management affects grapevine dry matter production, water, and nutrient status, the specific effects of a new hybrid perennial cover crop on soil temperature and its relationship to vine water status in vineyards has not been explored. This study will compare 3 different perennial cover crop combinations and tillage practices with a no-till seeding of a new hybrid perennial, Poa bulbosa (Pb).

Read More

Impact of glutathione-rich inactivated yeast on wine chemical diversity

Glutathione-rich inactivated dry yeasts (GSH-IDY) are claimed to accumulate intracellularly and then release glutathione in the must.

Read More

Isolation, biofilm formation and control of the wine spoilage yeast Brettanomyces bruxellensis

Brettanomyces bruxellensis, commonly referred to as “Brett,” is one of the most notorious microorganisms implicated in wine spoilage. This yeast species has developed a noteworthy resistance to sulfur dioxide, a widely used preservative in winemaking, prompting the wine industry to seek new antimicrobial agents.

Read More

Investigating the Ancient Egyptian wines: The wine jars database

In Ancient Egypt, wine was a luxury product consumed mainly by the upper classes and the royal family and offered to gods in daily religious rituals in the temples.
Since the Predynastic (4000-3100 BC) period, wine jars were placed in tombs as funerary offerings. From the Old Kingdom (2680-2160 BC) to the Greco-Roman (332 BC-395 AD) period, viticulture and winemaking scenes were depicted on the private tombs’ walls. During the New Kingdom (1539-1075 BC), wine jars were inscribed to indicate: vintage year, product, quality, provenance, property and winemaker’s name and title.

Read More