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IVES 9 IVES Conference Series 9 GiESCO 9 GiESCO 2013 9 GiESCO 2013 – Session 8: General viticulture 9 Heat requirements and length of phenological stages–effects of rootstock on red grape varieties at Douro region

Heat requirements and length of phenological stages–effects of rootstock on red grape varieties at Douro region

Abstract

Temperature is the major climate element for grapevine development, controlling the rhythm at which several phenological stages like bud break, flowering, veraison and maturity occur during the biological cycle. In an experimental field located in Douro Region the dates of the phenological stages bud break, flowering and veraison were recorded for the varieties Touriga Nacional (TN), Tinta Barroca (TB), Touriga Franca (TF) and Tinta Roriz (TR), grafted onto the rootstocks Rupestris du Lot, R110, and 196-17, over 10 years (2002-2011). Climatic data was taken from a meteorological station near the vineyard. During grape ripening,  berry samples were taken on average at three different periods (4th week of August, 2nd week of September and 4th week of September). Results show the thermal and chronological durations for each phase of the cycle and the rhythm of the maturation was evaluated.

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Publication date: 07/09/2026

Issue: GiESCO 2013

Type: Poster

Authors

Fernando Alves1,*, Miles Edlmann2, Jorge Costa1, Paulo Costa1, Paulo Macedo2, Pedro Leal da Costa2, Charles Symington2

1 ADVID, Associação para o Desenvolvimento da Viticultura Duriense, Qta St. Maria, APT 137, 5050-106 Godim, Portugal

2 Symington Family Estates, Quinta do Bomfim, Portugal

Contact the author*

Keywords

phenology, rootstocks, grapevine varieties, maturation, Douro Region

Tags

GiESCO | GiESCO 2013 | IVES Conference Series

Citation

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