Skip to Main Content
Genetic variation and seed zones of Douglas-fir in the Siskiyou National Forest.Author(s): Robert K. Campbell; Albert I. Sugano
Source: Res. Pap. PNW-RP-461. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 23 p
Publication Series: Research Paper (RP)
Station: Pacific Northwest Research Station
Download Publication (1.078 MB)
DescriptionProvisional seed zones and breeding zones were developed for Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) in the Siskiyou National Forest in southwestern Oregon. Zones were based on maps of genetic variation patterns obtained by evaluating genotypes of trees from 260 locations in the region. Genotypes controlling growth vigor and growth rhythm were assessed in a common garden. Within the Forest, three breeding blocks were recommended, with different numbers of elevational bands in each block: from 0 to 610 meters, from 611 to 838 meters, and then a series of bands 152 meters wide at higher elevations.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationCampbell, Robert K.; Sugano, Albert I. 1993. Genetic variation and seed zones of Douglas-fir in the Siskiyou National Forest. Res. Pap. PNW-RP-461. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 23 p
KeywordsPseudotsuga menziesii, geographic genetic variation, adaptation, ecological genetics, genecology
- Seed zones and breeding zones for sugar pine in southwestern Oregon.
- Genotype * environment interaction: a case study for Douglas-fir in western Oregon.
- Ecological adaptations in Douglas-fir (Pseudotsuga menziesii var. glauca) populations. III. Central Idaho
XML: View XML