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    Author(s): Randy. Johnson
    Date: 1998
    Source: Gen. Tech. Rep. PNW-GTR-411. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 34 p
    Publication Series: General Technical Report (GTR)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (209 KB)

    Description

    The basic principles of designing forest tree breeding programs are reviewed for Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) in the Pacific Northwest. Breeding populations are discussed given current and future breeding zone sizes and seed orchard designs. Seed orchard composition is discussed for potential genetic gain and maintaining genetic diversity in the forest. Mating and field testing designs are described and compared. Recommendations of the Breeding Zone Evaluation and Restructuring Cooperatives Working Group of the Northwest Tree Improvement Cooperative are presented.

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Johnson, Randy. 1998. Breeding design considerations for coastal Douglas-fir. Gen. Tech. Rep. PNW-GTR-411. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 34 p

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    Keywords

    Douglas-fir, multiple populations, sublines, breeding population, gene resource populations, mating designs, selection, seed orchard

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