Terroir 2010 banner
IVES 9 IVES Conference Series 9 Validation of phenological models for grapevine in the Veneto region

Validation of phenological models for grapevine in the Veneto region

Abstract

In this study we have compared the predictive ability of two phenological models: a traditional Thermal Time (TT) and a version of the more recently develop Unified Model (UM). Unlike TT, which quantifies the accumulation of heat units which trigger bud break and the subsequent development phases, the UM describes also the fulfilment of chilling requirements, predicting the date of dormancy break, and implements a finer description of the plant development temperature-dependency. The models were fitted and validated on phenological observations collected from 1986 and 2008 in a site of North-Eastern Italy, on the cultivars Glera, Chardonnay, Merlot and Cabernet Sauvignon. The UM fitted better to observations than TT, and yielded more accurate estimates on the validation dataset. In both models, the accuracy of estimates decreased from bud break to veraison.

DOI:

Publication date: October 8, 2020

Issue: Terroir 2010

Type: Article

Authors

G. Fila (1), P. Belvini (2), F. Meggio (1), A. Pitacco (1)

(1) University of Padova, Department of Environmental Agronomy and Crop Science I-35020Legnaro (PD), Italy
(2) Centro per l’Educazione la Cooperazione e l’Assistenza Tecnica. I-31033-Castelfranco Veneto (TV),

Contact the author

Keywords

Grapevine phenology, modelling

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

From protein-centered to gene-centered approaches to investigate DNA-protein interactions in grapevine

DNA-binding proteins play a pivotal role in critical cellular processes such as DNA replication, transcription, recombination, repair, and other essential activities. Consequently, investigating the interactions between DNA and proteins is of paramount importance to gain insights into these fundamental cellular mechanisms. Several methodologies have been devised to uncover DNA-protein interactions, which can be broadly categorized into two approaches. The “protein-centered” approach focuses on identifying the DNA sequences bound by a specific transcription factor or a set of TFs. Techniques falling within this category include chromatin immunoprecipitation, and protein-binding microarrays.

Characterization of the DOC wine “Colli Piacentini Gutturnio” obtained in three traditional areas

The poster presents the results of the 3rd year of activity of the project “Characterization of the wine productions of the italian regions. The DOC wine Colli Piacentini Gutturnio”.

Analysis of vineyard soil after mulching with municipal solid waste (MSW)-compost

The use of compost as amendment in agriculture is a well-established practice, strongly recommended for numerous benefits.

Indicators of Sustainable Vineyard Soil Management: Metrics for Assessing Environmental Impacts

The vital role of soils in supporting life on our planet cannot be overstated. Soils provide numerous ecosystem services and functions, including biomass production, carbon sequestration, physical support, biological habitat, and genetic reserve, among others. Understanding the characteristics and sensitivity of soils in a specific terroir, along with effective soil management practices, is crucial for the sustainable management of natural resources.

Phenology and maturation of Cabernet Sauvignon grapes from young vineyards at Santa Catarina state, Brazil – a survey of vineyard altitude and mesoclimat influences

Cabernet Sauvignon grapes from recently planted vines in Santa Catarina State (Brazil), were sampled during ripening from the 2005 and 2006 vintages.