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),[citation needed] 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.[citation needed]
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