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…

Analysis of some environmental factors and cultural practices that affect the production and quality of the Manto Negro, Callet and Prensal Blanc varieties

45 non irrigated vineyards distributed in the DO (Denomination) Pla i Llevant de Mallorca and the DO Binissalem Mallorca were used to investigate the characteristics of production and quality and their relationships certain environmental factors and cultural practices. The grape varieties investigated are autochthonous to the island of Mallorca, Manto Negro and Callet as red and Prensal Blanc as white. All plants were measured for four consecutive years in the main production and quality parameters. Among the environmental factors, the type of soil has been studied, more specifically its water retention capacity, the planting density, the age of the vineyard and the level of viral infection. The presence or absence of virus seems to have no effect on any component studied in the varieties studied. For the white variety Prensal Blanc age is negatively correlated with production and the number of bunches, nevertheless it does not cause any effect on the required quality parameters. However, for the red varieties Callet and Manto Negro, the age of the plantation is the variable that best correlates with the quality parameters, therefore the old vines should be the object of preservation by the viticulturists and winemakers in order to guarantee its contribution to the quality of the wines made with these varieties.

Read More

Convergence and divergence in chemical and sensory profiles of disease-resistant and Vitis vinifera white wines from South Tyrol: addressing strategies for market adoption

This study investigates the chemical and sensory profiles of white wines produced from disease-resistant hybrid grape cultivars (DRHGCs) compared to traditional Vitis vinifera L. cultivars in South Tyrol, Italy.

Read More

Fluorescence spectroscopy with xgboost discriminant analysis for intraregional wine authentication

AIM: This study aimed to use simultaneous measurements of absorbance, transmittance, and fluorescence excitation-emission matrix (A-TEEM) combined with chemometrics as a rapid method to authenticate wines from three vintages within a single geographical indication (GI) according to their subregional variations

Read More

Tracking of sulfonated flavanol formation in a model wine during storage

The aim of this work was to determine the reaction products of bisulfite with grape seed flavanols and changes therein over different storage conditions in a model wine

Read More

Influence of canopy management on yield, grape and wine quality. Relationship between the potassium content and pH in must and wine of the cultivar “Tempranillo”

In recent years red wines are being produced in Andalusia from indigenous and foreign grape varieties, one of which is the Spanish variety Tempranillo.

Read More