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Effects of sawdust from wood of different species of tree on the rooting of softwood cuttings of sour cherry and hazelnut

Jan Selwa, Janusz Lipecki

Department of Pomology
Agricultural University
Leszczyńskiego 58, 20-068 Lublin, Poland

The effect of sawdust obtained from the wood of different tree species on the rooting of softwood cuttings of sour cherry and hazelnut under artificial mist was studied. Willow, pear, hazel, and apple sawdust assured a higher percentage of rooted cuttings of the sour cherry cultivar Schattenmorelle than the control medium the difference being significant. A lower percentage of rooting was obtained in pine, sour cherry, plum, and walnut sawdust but the differences, when compared with the control medium were non-significant. Softwood cuttings of the hazelnut cultivar Hall's Giant rooted in a higher percentage in all the investigated kinds of sawdust than in the control medium, but significant differences were observed only in sawdust from cherry wood.

The results of the bean hypocotyl bioassay confirmed the high rhizogenic activity of the sawdust itself and of water extract obtained from it. The results obtained in the present study seem to indicate that the positive effect of sawdust on the rooting of cuttings is related rather to its chemical than its physical properties.

Selwa J., Lipecki J., 1993. Effects of sawdust from wood of different species of tree on the rooting of softwood cuttings of sour cherry and hazelnut. Folia Horticulturae V/1: 3-9.