Folia Horticulturae

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Rhizogenesis in shoot cuttings of several ornamental shrubs

Wiesław Szydło, Andrzej Pacholczak

Department of Ornamental Plants
Faculty of Horticulture and Landscape Architecture, Warsaw Agricultural University
Nowoursynowska 166, 02-787 Warszawa, Poland
e-mail: ogr_kro@alpha.sggw.waw.pl

In order to intensify propagation of ornamental shrubs by treating stock plants with water solutions of auxins in 2001-2002 experiments were carried out in the Department of Ornamental Plants at Warsaw Agricultural University. Species and cultivars of decidiuous shrubs such as Japanese barberry (Berberis thunbergii DC. ‘Red Chief’, Berberis thunbergii DC. ‘Red Rocket’), warty barberry (Berberis verruculosa Hemsl. et E.H. Wilson), and holly (Ilex meserveae S.Y. Hu ‘Blue Princess’) were used in the experiments. Cuttings were harvested 24 hours after spraying stock plants with NAA or IBA in concentrations of 50-1000 mg dm-3. The following treatments of stock plants can be recommended: Berberis thunbergii ‘Red Chief’ and ‘Red Rocket’ - NAA or IBA - 200 mg dm-3, Berberis verruculosa - NAA or IBA - 50 mg dm-3, and Ilex meserveae ‘Blue Princess’ - NAA 500 mg dm-3 or IBA - 50 mg dm-3. This treatment can stimulate rhizogenesis and replace the traditional method of auxin application in the rooting of cuttings.

Szydło W., Pacholczak A., 2003. Rhizogenesis in shoot cuttings of several ornamental shrubs. Folia Horticulturae 15/2: 191-201.