Early Height Growth of Western White Pine Provenances in British Columbia Plantations
To estimate the limits of seed transfer to and within British Columbia, heights of 36 western white pine (Pinus monticola) provenances 5-13 yr after planting on 24 sites, comprising 4 studies, were analyzed for geographic patterns. Thirty-six provenances were tested, with a maximum of 17 on a site. California and Oregon sources are not recommended due to poor height growth. Percentage differences between tallest and shortest provenances varied from 16% to 31%, depending on plantation series. Washington State and Idaho sources can be used on coastal sites but are not recommended on northern-interior sites. Northern-interior provenances are recommended for local sites, especially those beyond the species' natural range. The data support establishment of separate seed orchards, one for each of the coastal and interior portions of this disjunct species. West. J. Appl. For. 13(2):47-53.
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Document Type: Journal Article
Affiliations: Canadian Forest Service, Pacific Forestry Centre, 506 West Burnside Road, Victoria, B.C. V8Z 1M5
Publication date: 1998-04-01
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