terclim by ICS banner
IVES 9 IVES Conference Series 9 Application of nitrogen forms such as nitrate, urea, and amino acids effects on leaf and berry physiology and wine quality

Application of nitrogen forms such as nitrate, urea, and amino acids effects on leaf and berry physiology and wine quality

Abstract

Nitrogen (N) uptake by grapevine roots in forms like nitrate, ammonium, urea, or amino acids influences vegetative and generative growth, impacting grape quality and wine sensory profile. The study examined nitrogen’s influence on phenolic compounds in leaves, berries, and wine across different scales — hydroponics, soil culture, and vineyard trials. Nitrogen forms altered metabolite patterns in leaves and wine significantly, affecting aroma and flavor. Key nitrogen assimilation enzymes (NR, NiR, GS) in grapevine rootstocks responded to nitrogen forms and timing. Hydroponically grown rootstocks fertilized with various forms showed differences in enzyme expression and activity, suggesting rootstocks can assimilate amino acid glutamine (Gln). Nitrogen forms also regulate NR and NiR, influencing nitrate assimilation. The study highlights the importance of nitrogen form on leaf physiology, berry composition, and wine quality, with implications for organic fertilization and vineyard management.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Christian Zörb*

Universität Hohenheim, Institut für Kulturpflanzenwissenschaften, Qualität pflanzlicher Erzeugnisse und Weinbau (340e), Schloss Westflügel, 70593 Stuttgart Hohenheim, Germany

Contact the author*

Keywords

nitrogen application, amino acids, quality, phenolics, wine quality

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Il turismo del vino: dalla logica individuale a quella di distretto

In alcuni lavori condotti alcuni anni or sono, abbiamo analizzato per un verso le tendenze della domanda di prodotti enologici, ed il comportamento del consumatore, e per un altro verso le motivazioni alla base delle scelte dell’enoturista, ovvero di colui che va per vigne e cantine per fruire di risorse enogastronomiche.

From average to individual fruit, a paradigm shift for accurate analysis of water accumulation and primary metabolism in developing berries

Presentknowledge about grape development is mainly driven by the premise that a typical berry would follow the same kinetics as the population average

Impact of type of winemaking vessel on the chemical composition and sensory attributes of Sauvignon blanc wines

In this video recording of the IVES science meeting 2024, Mariona H Gil i Cortiella (Universidad Autónoma de Chile, Santiago de Chile, Chile) speaks about the impact of type of winemaking vessel on the chemical composition and sensory attributes of Sauvignon blanc wines. This presentation is based on an original article accessible for free on IVES Technical Reviews.

Responses of grape yield and quality, soil physicochemical and microbial properties to different planting years

As an economically important fruit crop, continuous cropping of grapes can potentially impact soil health resulting in decreased yields.

Focus on terroir studies in the eger wine region of Hungary

In 2001, the Hungarian Ministry of Agriculture and Rural Development designated the Institute of Geodesy, Cartography and Remote Sensing (FÖMI) to elaborate a Geographic Information System (GIS) supported Vineyard Register (VINGIS) in Hungary. The basis of this work was a qualification methodology (vineyard and wine cellar cadastre system) dating back to several decades, however, in the 1980s and 1990s the available geographical maps and information technology did not provide enough accuracy for an overall evaluation of viticultural areas. The reason for the VINGIS elaboration and development was an obligation resulting from the EU membership to ensure the agricultural subsidies for the wine–viticulture sector.