The influence of indolebutyric acid, sampling-dates and juvenility on the rooting of filbert (Corylus sp.) cuttings

Propagation of filberts (= hazelnuts) by cuttings taken from long shoots (adult cuttings) and offshoots (juvenile cuttings) was attempted. The influence of sampling-dates, source of cuttings and of application of indolebutyric acid (IBA) was investigated. The best results were obtained when cuttings were taken in June and treated with IBA (50 mg/l -1 for 18 h). Juvenile cuttings, obtained from offshoots rooted better than those from long shoots of the crown. The rootability of cuttings varied in the investigated filbert cultivars. The results suggest the possibility of propagating filbert by cuttings.