Ulmus 'Dodoens'

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Ulmus hybrid
'Dodoens', Sir Harold Hillier Gardens, UK
'Dodoens', Sir Harold Hillier Gardens, UK
Hybrid parentage
('Exoniensis' × U. wallichiana) selfed
Cultivar
'Dodoens'
Origin
Wageningen, The Netherlands

The Dutch elm cultivar 'Dodoens' was one of several trees prepared for release in 1970, but delayed by the outbreak of the new, aggressive strain of Dutch elm disease [1]. Eventually released in 1973 it was to prove only moderately resistant and sales in the Netherlands dwindled from a peak of almost 16,000 in 1979 to 600 in 2004 [2][1]. Although still commercially available in Europe, the tree is no longer recommended for planting wherever the disease remains prevalent.

A very fast-growing tree with upright branches, it was derived from a selfed seedling of a hybrid of the curious variety of the Wych Elm, the Exeter Elm (Ulmus glabra 'Exoniensis'), and the Himalayan Elm Ulmus wallichiana [3]. The leaves are dark-green, glabrescent, up to 10 cm in length. The UK Champion tree at the Westonbirt Arboretum planted in 1981 measured 17 m in height, with a trunk 36 cm d.b.h. in 2002.

'Dodoens' was included in trials [2] in Canberra, Australia started in 1988, but has not thrived in that environment. It is not known to have been commercially released in North America although it was evaluated at the Iowa State University in the early 1970s and may still survive there [4].

Contents

[edit] Arboreta etc. accessions

[edit] Europe

[edit] Nurseries

Europe

(Widely available)

[edit] Etymology

The cultivar is named for the 16th century Flemish physician and botanist Rembert Dodoens.

[edit] References

  1. ^ Burdekin, D. A. & Rushforth, K. D. (Revised by Webber J. F. 1996). Elms resistant to Dutch elm disease. Arboricultural Research Note 2/96. Arboricultural Advisory and Information Service, Alice Holt, Farnham, UK
  2. ^ Hiemstra, J.A. et al. (2007). Belang en toekomst van de iep in Nederland. Praktijkonderzoek Plant & Omgeving, Wageningen UR, Netherlands.
  3. ^ Heybroek, H. M. (1993). The Dutch Elm Breeding Program. In Sticklen & Sherald (Eds.)(1993). Dutch Elm Disease Research, Chapter 3. Springer Verlag, New York, USA
  4. ^ Gibbs, J. N., Brasier, C. M., McNabb Jnr., H.S., and Heybroek, H. M. (1975). Further studies on the pathenogenicity in Ceratocystis ulmi. Europ. Journ. Forest. Path. 5 (3): 161-174
  5. ^ Johnson, Owen (ed.) (2003). Champion Trees of Britain & Ireland. Whittet Press, ISBN 9781873580615.