ISHS Acta Horticulturae 845: VII International Congress on Hazelnut
GRAFTING METHODS IN NURSERY PRODUCTION OF HAZELNUT GRAFTED ON CORYLUS COLURNA L.
Authors: S. Cerović, J. Ninić-Todorović, B. Gološin, V. Ognjanov, S. Bijelić
Keywords: grafting, hazelnut cultivars, nursery plant production, Turkish hazelnut
Abstract: Since 1992, at the Faculty of Agriculture, Institute for fruitgrowing and viticulture, Novi Sad,
Corylus colurna has been under observation for the purpose of selecting non-suckering rootstocks for cultivated hazelnut. Seedlings from certain
C. colurna mother trees appear to be of interest as rootstocks. The paper presents the data on hazelnut grafting and the results of nursery plant production of hazelnut cultivars. Production of nursery plants of the hazelnut cultivars ‘Tonda Gentile Romana’, ‘Istarski dugi’, ‘Halls Giant,’ ‘Cosford’, ‘Redleaf Lambert’ and ‘Contorta’, grafted by the method of English grafting on the Turkish hazelnut (
Corylus colurna L.) was tested in the period from 2005 to 2007. The success of grafting ranged from 69.3%, with the cultivar ‘Halls Giant’ in 2006, to 98.7%, with the cultivar ‘Tonda Gentile Romana’ again in 2006. The decorative form ‘Contorta’ has a low affinity with the Turkish hazelnut (55.1% on average).
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Cultivation of hazelnut grafted on Turkish hazel (Corylus colurna L.) rootstocks
has some advantages over the conventional breeding. The absence of suckering reduces maintenance costs, improves the resistance of hazelnuts towards pests and diseases (Ninic- Todorovic, 2000) and enables organic cultivation of hazelnut (Valentini et al., 2009). In addition, higher drought resistance of C. colurna L. root system allows hazelnut cultivation in dryer regions (Miletic et al., 2009). Considerable improvement in fruit and kernel quality from grafted hazelnuts was also reported (Miletic et al., 2009).