terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Cover crop management and termination timing have different effects on the maturation and water potentials of Glera (Vitis vinifera L.) in Friuli-Venezia Giulia

Cover crop management and termination timing have different effects on the maturation and water potentials of Glera (Vitis vinifera L.) in Friuli-Venezia Giulia

Abstract

Inter-row soil tillage in vineyards, stimulates vigor and production due to the absence of competition for water and nutrients, however negatively affects organic matter content, soil erosion, and compaction, resulting in reduced fertility. In this study, we investigated the effects of different cover crop management approaches, including cultivation type and termination timing, on the physiological and productive responses of a Glera vineyard.

The experimental trial was conducted in Precenicco (UD) from 2019 to 2021. A commercial mixture for autumn cover cropping was sown in alternating rows, and the sowing pattern was changed each year. Four cover crop management treatments were tested: buried cover crop (T) and only shredded (S), combined with two treatment timings: early (E) and late treatment (L).

During the 2020-2021 seasons, data of stem water potential, maturation curves, productivity, and soil biological characteristics were collected during the summer and at harvest.

The treatments did not have a significant effect on grapevine production in terms of bunch number, production per plant, and average bunch weight. However, the treatment tilled late (TL) showed higher concentrations of titratable acidity, lower concentrations of soluble sugars and pH compared to the other treatments. Furthermore, the same  significantly increased the values of soil microbial metabolic quotient (qCO2) compared to the other treatments.

The termination timing had a noticeable effect on the T treatments in terms of stem water potential. TL exhibited the highest stem water potential, whereas the TE treatment had the lowest values. Additionally, these two treatments displayed the most contrasting trends in terms of stem water potential. These findings suggest that termination timing had a more pronounced impact on tilled soils compared to shredded soils.

DOI:

Publication date: October 10, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Mirko Sodini1*, Alessandro Pichierri1,2, Alberto Calderan1,2, Riccardo Braidotti1, Claudio Mondini5, Paolo Sivilotti1

1 Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine,Via Delle Scienze 206, 33100 Udine, Italy
2 Department of Life Sciences, University of Trieste, via L. Giorgieri 10, 34127, Trieste, Italy3 CREA Research Centre for Vitiaculture and Enology, branch of Gorizia, via Trieste 23, I-34170 Gorizia, Italy

Contact the author*

Keywords

stem water potential, cover crops, soil management, Glera

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

is the overall ecological awarness among Spanish winemakers related to their attitudes towards natural wines?

The Agenda 2030 of the EU sets out the main guidelines for transitioning towards a resilient, green and safe economy. To this regard, the wine sector is experiencing an ecological transition in different ways such as increasing the production of ecological crops, or promoting the production of wines under more environmental-friendly and healthier (i.e., lower levels of SO2) products. These alternatives to conventional production are a smaller proportion of wines, in constant growth and demand, and follow alternative and minority practices, which range from sustainable to deeply philosophical thoughts. Among these methods there are organic, biodynamic and, more recently, natural wines.

Association between dietary pattern and wine consumption and Alzheimer’s disease in a cohort from La Rioja (Spain)

Addressing modifiable risk factors is the most promising strategy to prevent/delay Alzheimer Disease (AD)[1]. The aim of the study was to establish the connections between dietetic habits, wine consumption and AD. Thus, 98 volunteers were recruited: 50 diagnosed as AD and 48 healthy/controls. The Food Frequency Questionnaire (FFQ) was used for dietary patterns assessment and, based on these data, the Mind Diet Score was calculated. (Poly)phenol metabolites (especially derived from wine consumption) were analyzed by UPLC-QqQ-MS/MS in 24-h urine samples to confirm dietary (poly)phenol consumption.

The use of plasma activated water in barrel disinfection: impact on oak wood composition

The use of barrels is a practice that improves the quality of wines. The porous structure of wood favors the accumulation of microorganisms that can deteriorate the quality of wines so that barrel cleaning and sanitizing treatments are essential. The burning of sulphur discs has been the most common practice in winemaking because ots biocide effect. Nevertheless, its effectiveness is still insufficient and it is harmful for human health.

Pre-breeding for developing heat stress resilient grape varieties to ensure yield 

Climate change has numerous detrimental consequences and creates new challenges for viticulture around the world. Transitory or constant high temperatures frequently associated with an excess of sunlight (UV) can cause a variety of physiological disorders, such as sunburn. Diverse environmental factors and the plant’s response mechanisms to stress determine the symptoms. Grapevine berry sunburn leads to a drastic reduction in yield, and may eventually decline berry quality. Consequently, this poses a significant risk to the winegrowers.

Combined use of leaf removal and natural shading to delay grape ripening in Manto negro (Vitis vinifera L.) under deficit irrigation 

The increasingly frequent heat waves during grape ripening pose challenges for premium wine grape production. This makes the development of irrigation and canopy management techniques of great importance to maximize yield and grape quality. A field experiment was carried out during 2021 and 2022 using Manto negro wine grapes to study the effect of two irrigation strategies and different light exposure levels on grape quality.