Pacific Northwest Research Station

Title: Seed zones and breeding zones for sugar pine in southwestern Oregon.

Author: Campbell, Robert K.; Sugano, Albert I.

Date: 1987

Source: Res. Pap. PNW-RP-383. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 18 p

Station ID: RP-PNW-383

Description: Provisional seed zones and breeding zones were developed for sugar pine (Pinus lambertiana Dougl.) in southwestern Oregon. Zones are based on a map of genetic variation patterns obtained by evaluating genotypes of trees from 142 locations in the region. Genotypes controlling growth vigor and growth rhythm were assessed in a common garden. Within southwestern Oregon, two zones are recommended for low elevations (<740 m), two zones for middle elevations (>740 and <1172 m), and four zones for high elevations (>1172 m).

Keywords: Seed zones, geographic variation, genetic variation, adaptation (plant), sugar pine, Pinus lambertiana

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Citation

Campbell, Robert K.; Sugano, Albert I.  1987.  Seed zones and breeding zones for sugar pine in southwestern Oregon..   Res. Pap. PNW-RP-383. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 18 p