Ulmus 'Stavast'
| Ulmus 'Stavast' | |
|---|---|
| Genus | Ulmus |
| Hybrid parentage | 'Commelin' × '202' (U. 'Exoniensis' × U. wallichiana) |
| Cultivar | 'Stavast' |
| Origin | Netherlands |
Ulmus 'Stavast' is a Dutch hybrid elm cultivar raised at the Dorschkamp Research Institute for Forestry & Landscape Planning, Wageningen, as clone '622' from the crossing of 'Commelin' with clone '202',[1][2] itself a hybrid of the Exeter Elm Ulmus 'Exoniensis' and Himalayan Elm Ulmus wallichiana.
Description
The tree is distinguished by its dense root system.[3][4]
Pests and diseases
'Stavast' has only a moderate resistance to Dutch elm disease, rated 3 out of 5.[5]
Cultivation
'Stavast' has not been in commerce in its own right much. It was retained as a rootstock for the grafting of related elms like 'Dodoens', 'Plantyn', and 'Clusius' (cultivars now propagated by rooted cuttings[6][3]), as its dense root-system quickly stabilized young trees.[7] Specimens of the cultivar have been planted in the Netherlands, in the elm trial plantation at Lepelaarweg, Zeewolde,[8][4] in the Het Egeltjesbos public park in the village of De Kwakel, Uithoorn (one tree), and among the lines of elms on the ‘s-Gravelandsevaartweg, Loosdrecht (10 trees, planted 2018), part of Wijdemeren City Council's elm collection, assembled since 2003 by tree manager Martin Tijdgat and his colleagues.[9][10][11]
A number of 'Stavast' were exported to New Zealand for use in trials at the Hortresearch station at Palmerston North in the 1990s.
Etymology
The name 'Stavast' is Dutch for "stand firmly", but is also used to describe someone of resolute character.
References
- ^ 'Clone 202' herbarium leaves specimen WAG.1846635 (U. 'Exoniensis' × U. wallichiana), Baarn, 1962; bioportal.naturalis.nl
- ^ 'Clone 202' fruit and new leaves, herbarium specimen WAG.1846637, Baarn, 1962; bioportal.naturalis.nl
- ^ a b Ronnie Nijboer, 'Bomenwacht Groningen: Toekomst voor de iep' (Tree Watch Groningen: Future for the elm); stichtinggroningerbomenwacht.nl
- ^ a b Photograph of 'Stavast', Lepelaarweg, Zeewolde, in Martin Tijdgat, ''Ulmus – Gebruikswaarde- en sortimentsonderzoek in de praktijk', Dendroflora 56, 2020; edepot.wur.nl
- ^ 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
- ^ R. Nijboer, 'Iepziekte en onderstamkeuze', Dendroflora, 56, 2020
- ^ Heybroek, H.M. (1993). "The Dutch Elm Breeding Program". In Sticklen, Mariam B.; Sherald, James L. (eds.). Dutch Elm Disease Research. New York, USA: Springer-Verlag. pp. 16–25. ISBN 978-1-4615-6874-2. Retrieved 26 October 2017..
- ^ 'Bijzondere iepen langs Lepelaarweg', 18 December 2017
- ^ Bart Mullink,'Bekering gemeente Wijdemeren tot de iep loopt als een trein', 23 August 2018; boomzorg.nl
- ^ Sylvia de Witt, 'Wijdemeren is building an elm arboretum', boomzorg.nl
- ^ Martin Tijdgat and Karlijn Raats, 'Plenty to choose from in the world of elms: classic Wageningen cultivars, modern resistant elms and botanical species', 10 May 2021, boomzorg.nl