Simulação das datas de ocorrência da quebra de dormência e de floração em olive...

• Author(s): Barros, F. ; Maia, F.B. ; Melo-Abreu, J.P. ; Cordeiro, A.M. ; Mondragão-Rodrigues, F.
• Date: 2012
• Persistent ID: http://hdl.handle.net/10400.5/5718
• Origin: Repositório da UTL
• Subject(s): Olea europaea; climatic changes; cultivars
• Document Type: Conference Object
• Language: Portuguese

Description

We conducted a study of the phenology of four cultivars of Olea europaea L. ('Arbequina', 'Cobrançosa', 'Galega Vulgar' and 'Picual') based on observations of phenological stages, flowering times and modeling the flowering dates, using as reference an olive grove in Elvas. We conducted a modeling study of flowering dates following the model of De Melo Abreu et al. (2004). In the year 2011 the floral initiation of the cultivars occurred according the following order: ‘Arbequina’, ‘Galega’, ‘Picual’ and ‘Cobrançosa’. The FlowerCalc© model used on this study has proven to be adequate in predicting the flowering period as well as the chilling and heating requirements of the cultivars studied. The model efficiency is low (EM=0.31), although the error rate is reduced (0 days in ‘Arbequina’ to 5 days in ‘Picual’).