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Viability of seeds from squirrel-cut Douglas fir cones

Creator:: Lavender, Denis P. and Engstrom, W. H.
Abstract:: To determine if squirrels (Sciurus douglasii var.) cut cones before the seeds are ripe, a series of collection points was established in the Willamette Valley and the Cascade Mountains in the summer of 1954. The areas were inspected at intervals during August, September and October of 1954, and freshly cut...
Resource Type:: Technical Report
Full Text:: obtained Douglas fir (Pseudot- suga taxifolia Poir.) seed from two major sources: 1. Cones picked from

Direct seeding of Douglas fir with special reference to survival

Creator:: Finnis, John Michael
Resource Type:: Masters Thesis

Healing time for pruned douglas-fir

Creator:: Anderson, Eric A. and Forest Products Laboratory (U.S.)
Abstract:: Original report dated 1951. Information reviewed and reaffirmed 1958.
Resource Type:: Technical Report
Full Text:: HEALING TIME FOR PRUNED DOUGLAS-FIR September 1951 INFORMATION

Relationship Between Specific Gravity and Percentage of Summerwood in Wide-Ringed, Second-Growth Douglas-Fir

Creator:: Smith, Diana M.
Abstract:: For the sample of wide-ringed Douglas-fir discussed in this report, the relationship between specific gravity and percentage of summerwood is linear over a range of 16 to 60 percent summerwood content of the annual ring. The specific gravity of the summerwood and springwood portions of 96 dissected annual rings is...
Resource Type:: Technical Report
Full Text:: SUMMERWOOD IN WIDE-RINGED, SECOND-GROWTH DOUGLAS-FIR No. i04li l)ecember 19lili RELATIONSHIP BETWEEN

The chemical nature of Douglas fir cork

Creator:: Hergert, Herbert Lawrence
Resource Type:: Masters Thesis
Full Text:: The chemical nature of Douglas fir cork THE CHEMICAL

Hydrogenation of Douglas Fir Pseudotsuga taxifolia, Britt., Wax

Creator:: Cho, Arthur Kenji
Resource Type:: Masters Thesis
Full Text:: Hydrogenation of douglas fir, Pseudotsuga taxifolia, Britt

Certain factors affecting establishment of the Douglas fir (Pseudotsuga taxifolia (Lamb.) Britt.) seedlings

Creator:: Owen, Herbert Elmer, 1925-
Resource Type:: Masters Thesis
Full Text:: uncertainy of Douglas fir seed production and biotic inroads on the seed that is produced naturally. The

Structure and development of the bark of Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco

Creator:: Grillos, Steve J.
Resource Type:: Dissertation
Full Text:: Structure and development of the bark of Douglas-fir

Racial variation in seedling development of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco

Creator:: Owen, Herbert Elmer, 1925-
Resource Type:: Dissertation
Full Text:: - .cation used by the Orego~ State College Seed Laboratory in their germination tests of Douglas fir seeds

Some environmental factors affecting development and emergence of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins (Coleoptera: Scolytidae), in the laboratory

Creator:: Ryan, Roger B.
Resource Type:: Masters Thesis
Full Text:: emergence of the douglas-fir beetle, Dendroctonus pseudotsugae Hopkins (Coleoptera: scolytidae) in the

ScholarsArchive@OSU

Viability of seeds from squirrel-cut Douglas fir cones

Direct seeding of Douglas fir with special reference to survival

Healing time for pruned douglas-fir

Relationship Between Specific Gravity and Percentage of Summerwood in Wide-Ringed, Second-Growth Douglas-Fir

The chemical nature of Douglas fir cork

Hydrogenation of Douglas Fir Pseudotsuga taxifolia, Britt., Wax

Certain factors affecting establishment of the Douglas fir (Pseudotsuga taxifolia (Lamb.) Britt.) seedlings

Structure and development of the bark of Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco

Racial variation in seedling development of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco

Some environmental factors affecting development and emergence of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins (Coleoptera: Scolytidae), in the laboratory

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