Ulmus 'Rebona'
| Ulmus hybrid cultivar | |
|---|---|
_120606a.jpg) 'Rebona', Berlin Heinersdorf-Treskowstrasse | |
| Hybrid parentage | U. davidiana var. japonica × U. pumila |
| Cultivar | 'Rebona' |
| Origin | USA |
Ulmus 'Rebona' is an American hybrid cultivar raised by the Wisconsin Alumni Research Foundation (WARF) as selection 'W916', derived from a crossing of Japanese Elm clone W43-8 = 'Reseda' with Siberian Elm clone W426 grown from seed collected from a street tree at Yankton, South Dakota.[1] The tree was registered in 1993 by Conrad Appel KG, of Darmstadt (ceased trading 2006) and is a sibling of 'New Horizon' (selection 'W917'). In Europe, 'Rebona' is a Resista elm protected under E U breeders' rights (E U council decision 2100/94).
Description
'Rebona' bears a close resemblance to its sibling 'New Horizon', but requires less maintenance owing to a better leader. The tree grows rapidly, developing a fastigiate pyramidal shape with ascending branches. The glossy clear-green leaves are comparatively small, though slightly larger than those of 'New Horizon'.[2]
Pests and diseases
'Rebona' is highly resistant to Dutch elm disease, rated 5 out of 5.[2]
Cultivation
'Rebona' has been widely planted in Germany as a street tree . It is widely available in the Netherlands, and to a lesser extent in France and the UK.
Accessions
Europe
- Botanischer Garten Marburg , Marburg, Germany. No details available.
- Grange Farm Arboretum, Sutton St. James, Spalding, Lincolnshire, UK.
- Wijdemeren City Council, Netherlands, Elm Collection, first planted 2005 De Vijnen, Nederhorst den Berg. Used in elm trials Ankeveen 2009.
Nurseries
Europe
- Baumschule Grossbötzl Ort, Austria
- Björkhaga Plantskola Veberöd, Sweden
- Clasen & Co Rellingen, Germany.
- Eisele GmbH & Co KG Darmstadt, Germany.
- Hilliers Nurseries , UK.
- Noordplant , Glimmen, Netherlands.
- Pépinières Rouy-Imbert Monfavet-Avignon, France.
References
- ↑ Santamour, Frank S.; Bentz, Susan E. (May 1995). "Updated Checklist of Elm (Ulmus) Cultivars for use in North America". Journal of Arboriculture. 21 (3): 122–131. Retrieved 20 June 2016.
- 1 2 Heybroek, H. M., Goudzwaard, L, Kaljee, H. (2009). Iep of olm, karakterboom van de Lage Landen (:Elm, a tree with character of the Low Countries). KNNV, Uitgeverij. ISBN 978 90 5011 281 9