Search Constraints

Start Over
Filtering by: Publisher Salem, Or. : Oregon State Board of Forestry Remove constraint Publisher: Salem, Or. : Oregon State Board of Forestry Decade 1950-1959 Remove constraint Decade: 1950-1959 Subject Cones (Botany) -- Oregon, Western Remove constraint Subject: Cones (Botany) -- Oregon, Western

Search Results

  • 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:
    H. ENGSTROM Research Silviculturist MARCH, 1956 OREGON STATE BOARD OF FORESTRY Dwight L. Phipps