|Authors: ||M. Rovira, J.J. Ferreira, A. Campa|
|Keywords: ||Corylus avellana L., germplasm, tree characteristics, phenology, Phytoptus avellanae L|
Local hazelnut materials with good nut characteristics were collected in an exploration carried out in Asturias (northern Spain) between 2003 and 2005. A total of 36 of these materials are being maintained since 2008 in two collections located in IRTA-Mas de Bover in Tarragona (northeastern Spain), and in SERIDA, Villaviciosa, Asturias (northern Spain). In this work we investigate the adaptation of these Asturian materials to Mediterranean environment conditions of Tarragona.
Four tree agronomic traits (suckering, growth habit, vigour and canopy volume), phenology traits (flowering, catkins and pollen abundance, and leafing dates), and susceptibility to Phytoptus avellanae L., were assessed.
A very good vegetative development of these accessions was observed.
However, Asturian local material presented scarce production although a high number of flowers (male and female). Female flowering of most of the accessions occurred very late in season, when no hazelnut pollen was present at IRTA's hazelnut germplasm or in the surroundings, so most of the female flowers could not be pollinated.
Additional characterizations are in progress in order to identify the most interesting accessions to be maintained in collections or used by growers or breeders.
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