The Co.Ri.Bio. project, short for ‘Studies on hazelnut aimed at obtaining high-quality organic production’, involved eight partners belonging to different Italian research institutes for the 2004-2007 period. The Dipartimento di Colture Arboree of the University of Torino participated in the project with the aim to perform research in orchard management, nut quality and pest control: selection and propagation of individuals obtained by crossing suitable for kernel market and resistant to big bud mite (Phitoptus avellanae); selection and propagation of ‘Tonda Gentile delle Langhe’ (TGL) individuals with no sucker production; suitability of the new fresh market selection to organic management, comparison between traditional and monocauline training systems; susceptibility to weevil (Curculio nucum) assessed on fresh market and industrial cultivars and selections, studying the factors which predispose to the weevil attacks. This paper shows the results obtained after three years of experimentation. The researches about comparison between different training systems and susceptibility to nut weevil were already completed. Results of these researches will be presented in two specific papers during the congress. The work concerning the selection and propagation of TGL and new hybrids are still in progress. Five individuals of TGL and 20 selections were selected and propagated using scion grafting followed by trench layering. The average percentage of tree survival after grafting was 70.6% due to the use of the hot-callusing method. In the autumn 2008, a first experimental orchard will be realized with the aim to observe vegetative and productive behaviour in a significant number of plants. In 2005 an experimental orchard was also realized using L35 fresh market selection to evaluate their suitability to organic management.
Hazelnut researches at the University of Torino in the Frame of the Italian Co.Ri.Bio. project.
VALENTINI, Nadia;CAVIGLIONE, Mauro;ME, Giovanni
2009-01-01
Abstract
The Co.Ri.Bio. project, short for ‘Studies on hazelnut aimed at obtaining high-quality organic production’, involved eight partners belonging to different Italian research institutes for the 2004-2007 period. The Dipartimento di Colture Arboree of the University of Torino participated in the project with the aim to perform research in orchard management, nut quality and pest control: selection and propagation of individuals obtained by crossing suitable for kernel market and resistant to big bud mite (Phitoptus avellanae); selection and propagation of ‘Tonda Gentile delle Langhe’ (TGL) individuals with no sucker production; suitability of the new fresh market selection to organic management, comparison between traditional and monocauline training systems; susceptibility to weevil (Curculio nucum) assessed on fresh market and industrial cultivars and selections, studying the factors which predispose to the weevil attacks. This paper shows the results obtained after three years of experimentation. The researches about comparison between different training systems and susceptibility to nut weevil were already completed. Results of these researches will be presented in two specific papers during the congress. The work concerning the selection and propagation of TGL and new hybrids are still in progress. Five individuals of TGL and 20 selections were selected and propagated using scion grafting followed by trench layering. The average percentage of tree survival after grafting was 70.6% due to the use of the hot-callusing method. In the autumn 2008, a first experimental orchard will be realized with the aim to observe vegetative and productive behaviour in a significant number of plants. In 2005 an experimental orchard was also realized using L35 fresh market selection to evaluate their suitability to organic management.
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