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Strength and related properties of Douglas fir from mill samples

Creator:: Snodgrass, James D. and Noskowiak, Arthur F.
Resource Type:: Technical Report
Full Text:: in 1960 and de- scribed in this report. Personnel of Washington State and Oregon State Universities

Effect of light quality and periodicity upon germination of Douglas-fir seed (Pseudotsuga menziesii (Mirb.) Franco) and on growth of Douglas-fir seedlings

Creator:: Johnson, Le Roy Curtis
Abstract:: A study on the effects of light quality and periodicity on the germination of Douglas-fir seed and the growth of Douglas-fir seedlings was conducted. Interest was focused on responses that could be measured and observed without biochemical assay. It was found that .Douglas-fir seed,s would respond to red-light treatments by...
Resource Type:: Masters Thesis
Full Text:: temperature inside the dishes increased 450 c. Twelve dishes of fifty imbibed seeds from Valsetz, Oregon were

Some anatomical features of Douglas-fir wood rated permeable and refractory

Creator:: Krahmer, Robert Lee
Resource Type:: Masters Thesis
Full Text:: diagram 16 3 p of Oregon showing variation in 19 permeability with geographic location 4 American

Photosynthesis, respiration, and dry matter accumulation of Douglas-fir seedlings from different geographic sources and growth at different temperatures

Creator:: Sorensen, Frank C.
Resource Type:: Dissertation
Full Text:: the vicinities of Missoula, Montana and Corvallis, Oregon were analyzed at the cotyledon stage (15

The flavonoid compounds of three floral phenotypes of Douglas fir

Creator:: Highley, Terry L.
Resource Type:: Masters Thesis
Full Text:: PHENOTYPES OF DOUGLAS FIR by TERRY L. HIGHLEY A THESIS submitted to OREGON STATE UNIVERSITY in partial

A study of several anatomical variables in relation to their effect on tensile strength of Douglas-fir

Creator:: McMinimy, Lawrence Otto
Abstract:: A microscopic study was conducted on specific gravity wafers taken from standard tensile strength specimens of young growth Douglas-fir. Samples were studied to determine the effect of variables such as percent summerwood, fiber length and fibril angle on tensile strength of Douglas-fir. The sample specimens were picked so effects of...
Resource Type:: Masters Thesis
Full Text:: Oregon. Van VUet divided these sample. into six growth rate classes. The number of rings per inch in

The effect of drought on the rate of photosynthesis, respiration, and transpiration in two ecotypes of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:: Zavitkovski, J.
Abstract:: The subject of this study was the determination of the changes in photosynthesis, respiration and transpiration in two ecotypes of Douglas-fir as caused by decreasing soil moisture content. The photosynthetic rate was also correlated with the relative turgidities of needles. All the above processes were greatly affected by decreasing soil...
Resource Type:: Masters Thesis
Full Text:: Range in Oregon another ecotype was created. THE EFFECT OF DROUGHT ON THE RATE OF PHO TOS YN THESIS

Temperature effects on the growth of Douglas-fir seedlings

Creator:: Wommack, Donald Everett
Abstract:: This study was undertaken to determine the effects of different chilling treatments during the dormant season upon growth of Douglas-fir seedlings0 In addition it was planned to determine whether seedlings native to various geographic areas differ in their chilling requirements0 The hypotheses were advanced, based on previous studies, that chilling...
Resource Type:: Dissertation
Full Text:: DONALD EVERETT WOMMACK A THESIS submitted to OREGON STATE UNIVERSITY in partial. ful.fill.ment of the

Research on inspection and treatment of western red cedar and Douglas fir poles in service : final report

Creator:: Mothershead, J. S., Graham, R. D. (Robert D.), and Oregon State University. Forest Research Laboratory
Abstract:: Final report to cooperators Project 26E-13.
Resource Type:: Technical Report
Full Text:: cooperation on radiography of poles, and to Prof. L. C. Jensen, Oregon State University, and Branson

Origin and differentiation of the seed cone of Pseudotsuga menziesii (Mirbel) Franco

Creator:: Owens, John N.
Resource Type:: Dissertation
Full Text:: buds. These trees were growing in the open about five miles north of Corvallis, Oregon, at an

ScholarsArchive@OSU

Strength and related properties of Douglas fir from mill samples

Effect of light quality and periodicity upon germination of Douglas-fir seed (Pseudotsuga menziesii (Mirb.) Franco) and on growth of Douglas-fir seedlings

Some anatomical features of Douglas-fir wood rated permeable and refractory

Photosynthesis, respiration, and dry matter accumulation of Douglas-fir seedlings from different geographic sources and growth at different temperatures

The flavonoid compounds of three floral phenotypes of Douglas fir

A study of several anatomical variables in relation to their effect on tensile strength of Douglas-fir

The effect of drought on the rate of photosynthesis, respiration, and transpiration in two ecotypes of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Temperature effects on the growth of Douglas-fir seedlings

Research on inspection and treatment of western red cedar and Douglas fir poles in service : final report

Origin and differentiation of the seed cone of Pseudotsuga menziesii (Mirbel) Franco

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