Abstract
Trials of Douglas-fir were planted from the late Egon Larsen’s two main seed collections. The 1957-planted trials were based on commercial seedlots ranging from north Washington (Darrington) to Snoqualmie Forest in southern Oregon. The more valuable collection formed the basis of the 1959-planted trials and derived from coastal provenances, ranging from north Washington to Santa Cruz, California. However, the breeding programme was wrongly based on selections in Kaingaroa Forest stands from Washington and was put on hold for over 20 years. Further seed collections were made by Charlie Low and Mark Miller in 1993 from 222 trees in coastal south Oregon and California, and these, along with 188 selections made in the 1959 provenance trials, formed the basis of a new Douglas-fir breeding programme, whose development is also reported.
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References
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Shelbourne, C.J.A. (2019). Douglas-Fir Provenance and Breeding. In: Tree Breeding and Genetics in New Zealand. Springer, Cham. https://doi.org/10.1007/978-3-030-18460-5_5
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DOI: https://doi.org/10.1007/978-3-030-18460-5_5
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