Genetic variation and seed transfer guidelines for lodgepole pine in central Oregon.

Frank Sorensen

doi:10.2737/PNW-RP-453

Treesearch

Genetic variation and seed transfer guidelines for lodgepole pine in central Oregon.

Informally Refereed

Authors:

Frank Sorensen

Year:

1992

Type:

Research Paper

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RP-453

Source:

Res. Pap. PNW-RP-453. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 30 p

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Download (PDF 1.50 MB): https://research.fs.usda.gov/download/treesearch/20568.pdf

Abstract

Cones were collected from 272 trees at 189 locations uniformly distributed over the east slopes of the Oregon Cascade Range and Warner Mountains. Variation in seed and seedling traits was related to (1) seed source latitude, distance from the Cascade crest, elevation, slope, and aspect in multiple regression analyses; and (2) seed zone and elevation band in classification analyses. Provisional seed transfer guidelines are presented. These include a regression equation for guiding seed transfer and estimating transfer risk, and a new outline of fixed seed zones.

Keywords

Pinus contorta var murrayana, lodgepole pine, geographic variation, seed transfer, breeding zones

Citation

Sorensen, Frank C. 1992. Genetic variation and seed transfer guidelines for lodgepole pine in central Oregon. Res. Pap. PNW-RP-453. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 30 p