Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub


    Adaptive genetic variation in seed and seedling traits for ponderosa pine from the east slopes of the Cascade Range in Oregon was analyzed by using 307 families from 227 locations. Factor scores from three principal components based on seed and seedling traits were related by multiple regression to latitude, distance from the Cascade crest, elevation, slope, and aspect of the seed source and by classification analysis to seed zone and 300-meter elevation band within zone. A provisional transfer risk equation and tentative new seed zones were delineated to guide seed transfer in artificial regeneration.

    Publication Notes

    • Visit PNW's Publication Request Page to request a hard copy of this publication.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Sorensen, Frank C. 1994. Genetic variation and seed transfer guidelines for ponderosa pine in central Oregon. Res. Pap. PNW-RP-472. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 24 p


    Google Scholar


    Pinus ponderosa, seedlings, provenance, geographic genetic variation, ecological genetics, genecology, genetic diveristy

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page