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Effect of snowbrush on the establishment and growth of Douglas-fir seedlings

Creator:: Scott, William
Abstract:: Six, recent clear cut areas were selected in the Douglas-fir zone of the Western Cascade Range of Oregon to determine the environmental and nutritional effects that snowbrush has on the establishment and growth of Douglas-fir seedlings. One thousand eighty milacre sample plots on the six clear cuts were used to...
Resource Type:: Masters Thesis
Full Text:: stations were used. Moisture was measured at 2, 6 and 24 inches. At each moisture station, the maximum

Drying rates of Douglas fir veneer in superheated steam

Creator:: Atherton, George H. (George Harry), 1920-1987
Resource Type:: Masters Thesis
Full Text:: 3. Superheater, burner, blower, and orifice piping 24 4. Test station 24 5. Veneer samples in

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

Creator:: Owen, Herbert Elmer, 1925-
Resource Type:: Masters Thesis
Full Text:: experixiient station, at Wind River, Washington, found that over 43 per cent of all Douglas fir seedlings

The relationship of the survival of Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco, seedlings to certain soil and other site characteristics on the Tillamook Burn

Creator:: Lowry, Gerald L., 1928-
Resource Type:: Masters Thesis
Full Text:: necessary to call upon the Oregon State College Experi ment Station at Corvallis, Oregon. to cooperate in

The effect of forest stand thinning on selected strength and pulp-ing characteristics of Douglas-fir

Creator:: Johnson, Donna A.
Abstract:: The purpose of this study was to determine if amount and kind of thinning had an effect on wood specific gravity, modulus of rupture, modulus of elasticity, growth rate, or pulp yield and kappa number. The study involved 24 1/5-acre plots, three plots in each of eight thinning treatments. The...
Resource Type:: Masters Thesis
Full Text:: growth Douglas-fir coordinated by the Pacific Northwest Forest and Range Experiment Station. It is a

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

Botrytis infection of Douglas-fir seedlings and its control with thiram

Creator:: Halber, Max
Resource Type:: Masters Thesis
Full Text:: Experiment Station, Meguro. Bulletin no. 110) 16. Sch8nhar, S. Grauschimmelfule an jungen Nadelhölzern

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

Root initiation and differentiation in Pseudotsuga menziesii (Mirbel) Franco

Creator:: Bogar, Gerald Dale
Abstract:: Tissue differentiation of the primary root and its associated laterals is reported. Secretory elements are the first of the primary tissues to mature. They appear to be located between the precursory phloem and pericycle in the primary root, but are more closely associated with the pericycle in long lateral roots....
Resource Type:: Masters Thesis
Full Text:: thesis. I am grateful to the Pacific Northwest Forest and Range Experiment Station, Forest Service

Early stages in plant succession on Douglas fir clearcuts on the Mary's Peak watershed near Corvallis, Oregon

Creator:: Brown, Eugene Allen
Abstract:: This study has been concerned with the patterns of vegetative changes which occur during the first five years following logging and burning on Douglas-fir clear cuts. Knowledge of the successional sequence in the coastal forests of western Oregon is of primary importance to those concerned with the management of this...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Effect of snowbrush on the establishment and growth of Douglas-fir seedlings

Drying rates of Douglas fir veneer in superheated steam

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

The relationship of the survival of Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco, seedlings to certain soil and other site characteristics on the Tillamook Burn

The effect of forest stand thinning on selected strength and pulp-ing characteristics of Douglas-fir

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

Botrytis infection of Douglas-fir seedlings and its control with thiram

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

Root initiation and differentiation in Pseudotsuga menziesii (Mirbel) Franco

Early stages in plant succession on Douglas fir clearcuts on the Mary's Peak watershed near Corvallis, Oregon

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