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Filtering by: Advisor Powelson, R. L. Degree Field Forest Products

Evaluating radial compression, color indicator and micro-toughness tests to detect early decay in Douglas-fir

Creator:

Smith, Susan M.

Abstract:

Three methods--radial compression strength, color indicators of decay and micro-toughness, an examination of tracheid fracture patterns, were evaluated for detection of early decay and for application to field use. Three-eighth-inch diameter plugs 3/4-inch long, cut from the sapwood and heartwood of a Douglas-fir pole free of decay, were decayed by...

Resource Type:

Masters Thesis

Full Text:

-Fir R. D. Gya am R. L. Krahmer Three methods--radial compression strength, color indicators of
Hydraulic properties of compression wood in branches and reoriented shoots of Douglas-fir (Psuedotsuga menziesii)

Creator:

Spicer, Rachel

Abstract:

Xylem anatomy is a strong determinant of water transport efficiency and is therefore an important component of the overall hydraulic strategy of any woody plant. However, in addition to its role in water transport, xylem also serves in mechanical support, and these two functions may represent conflicting design requirements. To...

Resource Type:

Masters Thesis
Wood density patterns of young Costa Rican trees in planted and natural forests

Creator:

Baker, David C.

Abstract:

In plantation forestry, rapid growth rate is favorable for wood production, but may decrease wood density, which is an important indicator of wood quality for both pulp and solid wood products. I looked for (1) differences in radial patterns of wood density between planted and naturally grown Costa Rican tree...

Resource Type:

Masters Thesis