terclim by ICS banner
IVES 9 IVES Conference Series 9 Organic mulches improve vine vigour, yield and physiological response in a semi-arid region

Organic mulches improve vine vigour, yield and physiological response in a semi-arid region

Abstract

Recycled organic mulch within the row in vineyard floor management has become an interesting ecological strategy to adapt the crop to climate change consequences in semi-arid regions.

This study aimed to assess the impact of three recycled organic mulches [straw (STR), grape pruning debris (GPD), and spent mushroom compost (SMC)] and two conventional soil management practices [herbicide (HERB) and under-row tillage (TILL)] on vegetative vigour (NDVI), production (kg/plant), and physiological parameters (δ13C in grapes and leaf gas exchange during four grapevine phenology stages). Additionally, temperature and water soil parameters were collected at three soil depths. Data was collected during the 2021 and 2022 grapevine growing seasons in La Rioja, Spain.

The SMC treatment increased vegetative plant growth compared to HERB and GPD and higher production values than TILL and HERB. These differences were attributed to higher water content during flowering to veraison period.Physiologically, there were no δ13C grape differences among soil management treatments due to irrigation applications during veraison and maturation, blurring potential effects on δ13C. Regarding leaf gas exchange, SMC showed higher Water Use Efficiency (WUEi: photosynthesis/stomatal conductance) at flowering and setting in both years. However, during veraison and maturation, stomatal conductances decreased due to elevated climatic stress. In 2021, STR and SMC exhibited higher stomatal conductances during veraison and maturation, resulting in a decline in WUEi. In contrast, in 2022, characterized by warmer and drier conditions, low conductances were observed, masking differences between soil treatments. Organic mulch treatments, especially SMC, improved plant capacities in semi-arid regions.

Download the abstract

DOI:

Publication date: July 23, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Andreu Mairata1*, David Labarga1, Miguel Puelles1, Luis Rivacoba1, Javier Portu1, Alicia Pou1

1Instituto de Ciencias de la Vid y del Vino (CSIC, Gobierno de la Rioja, Universidad de La Rioja), Finca La Grajera, Ctra. Burgos Km. 6, 26007 Logroño, Spain

Contact the author*

Keywords

water use efficiency, soil management, carbon isotope discrimination, mulching, yield

Tags

IVES Conference Series | OpenGPB | OpenGPB2024

Citation

Related articles…

Il paesaggio delle alberate aversane ed il vino Asprinio

Nel corso del 2009, in alcuni vigneti allevati ad alberata in provincia di Caserta (Italia), è stata avviata una ricerca per valutare la variabilità genetica della popolazione del vitigno ‘Asprinio’, la condizione sanitaria delle piante e le caratteristiche del vino sia rispetto alla forma di allevamento (alberata tradizionale e controspalliera) che all’altezza della fascia produttiva.

Read More

Skin And Seed Extracts Differently Behave Towards Salivary Proteins

Background: Polyphenols extracted from skins and seeds showed different sensory attributes including astringency and bitterness. In previous studies, it has been demonstrated that extracts obtained either from skins or seeds interact differently with salivary proteins.

Read More

Vitis v. corvina grapes composition and wine sensory profile as affected by different post harvest withering conditions

Context and purpose of the study – In Valpolicella area (Verona – Italy) Vitis vinifera cv. Corvina is the main wine variety to obtain, after grape withering, Amarone wine: this study was carried out in order to compare two different grape dehydration conditions with the aim of verifying the final composition of Corvina dried grapes and the organoleptic profile of corresponding Amarone wine.

Read More

Phenolic composition and chromatic characteristics of blends of cv. Tempranillo wines from vines grown with different viticultural techniques in a semi-arid area

The quality and color stability of red wines are directly related to content and distribution of phenolic compounds. However, the climate change produces the asynchrony between the dates of technological and maturity of grapes. The crop-forcing technique (CF) restores the coupling between phenolic and technological ripeness while limits vineyard yields. Blending of wines is frequently used to equilibriate composition of wines and to increase their stability, color and quality. The aim of the present work is to study the phenolic composition and color of wine blends made with FW (wines from vines subjected to CF) and CW (wines for vines under the usual cultivation practices).

Read More

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