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.

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…

Pests and biodiversity management on a climate change scenario: A practical case

The weather anomalies comparing the 1971-2000 time frame and the last years has showned a dramatic scenario when, in some months, average temperature in above 3ºC and the reduction in precipitation in more than 30%.

Impact of aging on dimethyl sulfide (DMS) in Corvina and Corvinone wines

Amarone is an Italian red wine produced in the Valpolicella area, in north-eastern Italy. Due to its elaboration with withered grapes, Amarone is a rather unique example of dry red wine. However, there is very limited data so far concerning the volatile composition of commercial Amarone wines, which also undergo a cask aging of 2-4 years before release. The present work aims at characterizing the aroma composition of Amarone and to elucidate the relationships between chemical composition and sensory characters.

Evaluation of consumer behaviour, acceptance and willingness to return of faulty wines

The analysis of consumer attitudes towards wine, especially towards wines perceived as faulty, is an aspect that requires more research than has been carried out so far [1]. This study aims to analyse consumer behaviour in situations involving the consumption of faulty wines and to assess the level of acceptance of such wines.

The true cost of the vineyard landscape enhancement. First results in the Venezia biodistrict 

The research is part of the “Ecovinegoals” project, financed by Interreg Adrion funds. It aims to encourage the adoption and dissemination of agroecological practices in intensive wine-growing areas. The study focuses on cost analysis of the wine-growing landscape enhancement in an organic winery in order to provide a useful tool for winemakers to direct their investments in green infrastructures. One of the Italian pilot areas of the Ecovinegoals project is the Venezia Biodistrict, characterized by viticulture in a flat reclamation area of 105,800 hectares.

Investigation of cellulose nanofiber-based films used as a protective layer to reduce absorption of smoke phenols into wine grapes

Volatile phenols from wildfire smoke are absorbed by wine grapes, resulting in undesirable smoky and ashy sensory attributes in the affected wine.[1] Unfortunately the severity of wildfires is increasing, particularly when grapes are ripening on the vine. The unwanted flavors of the wine prompted a need for solutions to prevent the uptake of smoke compounds into wine grapes. Films using cellulose nanofibers as the coating forming matrix were developed as an innovative means to prevent smoke phenols from entering Pinot noir grapes. Different film formulations were tested by incorporating low methoxy pectin or chitosan.