Effects of inter-annual climate variability on grape harvest timing in rainfed hilly vineyards of Piedmont (NW Italy)

Authors

  • Giorgia Bagagiolo Istituto per le Macchine Agricole e Movimento Terra (IMAMOTER), Consiglio Nazionale delle Ricerche (CNR) - Torino, Italy https://orcid.org/0000-0002-6619-0041
  • Danilo Rabino Istituto per le Macchine Agricole e Movimento Terra (IMAMOTER), Consiglio Nazionale delle Ricerche (CNR) - Torino, Italy https://orcid.org/0000-0002-0062-6623
  • Marcella Biddoccu (1) Istituto per le Macchine Agricole e Movimento Terra (IMAMOTER), Consiglio Nazionale delle Ricerche (CNR) - Torino, Italy
  • Guido Nigrelli Istituto di Ricerca per la Protezione Idrogeologica (IRPI), Consiglio Nazionale delle Ricerche (CNR) – Torino, Italy https://orcid.org/0000-0002-5506-5915
  • Daniele Cat Berro Società Meteorologica Italiana – SMI, Italy
  • Luca Mercalli Società Meteorologica Italiana – SMI, Italy
  • Federico Spanna Regione Piemonte - Settore Fitosanitario e Servizi Tecnico Scientifici - Torino, Italy
  • Giorgio Capello Istituto per le Macchine Agricole e Movimento Terra (IMAMOTER), Consiglio Nazionale delle Ricerche (CNR) - Torino, Italy
  • Eugenio Cavallo Istituto per le Macchine Agricole e Movimento Terra (IMAMOTER), Consiglio Nazionale delle Ricerche (CNR) - Torino, Italy

DOI:

https://doi.org/10.36253/ijam-1083

Keywords:

viticulture, climate change, agro meteorology, time series analysis, Italy

Abstract

The current scenario of global warming impacts viticulture, influencing grape and wine quality. A study was carried out in the “Basso Monferrato” region, a rainfed hilly vine-growing area in NW Italy, to investigate the relationships between climate variables and grape harvest dates. The dates of harvest for some local wine grape varieties were recorded from 1962 to 2019 in the Vezzolano Experimental Farm and surrounding vineyards. Three series of climate data were investigated by means of trend analysis for temperature variables, Huglin index, and precipitation during the growing period. A significant trend was found for temperature variables (positive) and harvest dates (negative), indicating anticipation of harvest beginning from 11.6 to 34.2 days in the 58-years study period, depending on the variety. The influence of increasing temperature and Huglin index in anticipating the harvest period, particularly the harvest beginning, was also highly significant for all the considered varieties and vineyards in the Monferrato area. Implication under a climate warming scenario, the relevance of having available continuous and homogeneous datasets and possible future studies were also discussed.

References

Funding: This study was conducted with the support of Fondazione CRT (research project "Recupero e valorizzazione delle serie storiche di dati agro-meteorologici di Vezzolano"). Part of this research was carried out within the framework of the WATER4EVER Project (WaterJPI/0010/2016), that is funded under the WaterWorks 2015 Call, with contribution of EU and MIUR.

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Published

2021-08-09

How to Cite

Bagagiolo, G., Rabino, D., Biddoccu, M., Nigrelli, G., Cat Berro, D., Mercalli, L., Spanna, F., Capello, G., & Cavallo, E. (2021). Effects of inter-annual climate variability on grape harvest timing in rainfed hilly vineyards of Piedmont (NW Italy). Italian Journal of Agrometeorology, (1), 37-49. https://doi.org/10.36253/ijam-1083

Issue

Section

RESEARCH ARTICLES