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    Author(s): Robert K. Campbell; Albert I. Sugano
    Date: 1989
    Source: Res. Pap. PNW-RP-407. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 20 p
    Publication Series: Research Paper (RP)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (989 KB)

    Description

    Provisional seed zones and breeding zones were developed for white pine (Pinus monticola Dougl. ex D. Don) in the Cascade Range of western Washington and Oregon. Recommendations were based on genetic variation patterns obtained by evaluating genotypes of trees from 115 locations. Genotypes controlling growth vigor and growth rhythm were assessed in common gardens. Five zones, delimited mainly by latitude, were recommended: two in Washington, two in Oregon, and one in both States adjoining the Columbia River.

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    Citation

    Campbell, Robert K.; Sugano, Albert I. 1989. Seed zones and breeding zones for white pine in the Cascade Range of Washington and Oregon. Res. Pap. PNW-RP-407. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 20 p

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    Keywords

    Genetic variation, geographic variation, adaptation (plant), seed-transfer, Pinus monticola

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