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Estimating diameter inside bark at various heights in young Douglas fir trees

Creator:: Faqir Mohammad Khan, Bell, John F., Berg, Alan B., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: University L No. 59 °:. r st Research i. ;s a; Lf ,.)1 t i l i7 ESTIMATING DIAMETER INSIDE BARK AT VARIOUS

Mycorrhizae on Douglas fir and Ponderosa pine seedlings

Creator:: Wright, Ernest, 1899- and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: Professor of Forest Pathology Research Bulletin 13 June 1971 Paper 670 Jorest Research Laboratory School

The economic feasibility of preheating Douglas-fir blocks prior to peeling

Creator:: Baskin, Richard
Abstract:: Past research and industrial sources have implied that preheating Douglas-fir Pseudotsuga menziesii (Mirb.) Franco prior to peeling veneer was economically feasible. To test this, the effect of treatment temperature on veneer yield and thickness variation for three diameter classes of low grade Douglas-fir logs was studied and related to the...
Resource Type:: Masters Thesis
Full Text:: Preheating Douglas-fir Blocks Prior to Peelin Abstract approved: Helmuth Resch Past research and

Isoenzyme polymorphism in provenances of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco var. menziesii)

Creator:: Yang, Jenq-chuan
Abstract:: Genetic variability in natural populations of Douglas-fir was studied at molecular level by investigating the variations of some primary gene products, i. e. enzymes. Using the techniques of disc gel electrophoresis and biochemical staining, the isoenzyme patterns of leucine aminopeptidase, esterase and glutamate oxaloacetate transaminase are characterized in young seedlings...
Resource Type:: Dissertation
Full Text:: requirements for the degree of Doctor of Philosophy June 1975 FOREST RESEARCH LABORATORY LIBRARy Isoenzyme

Nutrient cycling under 450-year-old Douglas-fir stands

Creator:: Abee, Albert
Abstract:: To investigate the movement of elements (N, P, k, Ca, and Mg) from the tree crowns by natural litterfall and leave wash, plots were established on six 450 year-old growth stands at the H. J. Andrews Experimental Forest. The following are the results of the data analyses. Elemental concentrations contained...
Resource Type:: Masters Thesis
Full Text:: )..comp.iled a.. review. 'of-his own research and the general Lf.teranur.e..on .leaching of substances from

Public timber supply alternatives in the Douglas-fir region

Creator:: Vaux, Henry J. (Henry James)
Resource Type:: Technical Report
Full Text:: Range Exp. Sta., Research Paper PNW-1 1. 63 pp. 1964. FOOD AND AGRICULTURE ORGANIZATION, UNITED NATIONS

The loading of second-growth Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco): to simulate the forces acting on an intermediate support tree

Creator:: Sedlak, Jerome Peter
Abstract:: The comercial thinning of second-growth stands in the Pacific Northwest is becoming increasingly important for satisfying the demand for timber. Cable logging will require the rigging of smaller intermediate support trees rather than those utilized on old-growth timber sales. This paper reports on the results of a study designed to...
Resource Type:: Capstone Project

Effect of seedling characteristics on Kraft pulping properties of young Douglas-fir

Creator:: Chia, Shun Nan
Abstract:: A study has been made of the kraft pulping properties of young Douglas-fir trees which were thinned from an experimental plantation. The purpose of the plantation study is to determine, whether two year old seedlings can be selected on the criteria of height and branch count for future desirable tree...
Resource Type:: Masters Thesis

Comparative development of a thinned and a natural Douglas-fir stand from 45 to 60 years of age

Creator:: Groman, William A.
Abstract:: An understanding of the dynamics of individual tree and stand growth, development, and structural patterns during the immature formative years of a commercial species is essential to determine correct thinning practices necessary to attain desired objectives. This study compared a natural, medium-site Douglas-fir stand and an adjacent similar stand released...
Resource Type:: Dissertation

Variation in the foliar nutrient status of several Douglas-fir provenances

Creator:: Stevens, Roderick D.
Abstract:: From a preliminary 1969 foliar analysis, eight provenances were chosen from the sixteen included in a region-wide, reciprocal Doulgas-fir provenance study for further study of variation in foliar nutrition. In the fall of 1969 separate foliar samples were collected from ten trees per provenance at each of ten plantations ranging...
Resource Type:: Dissertation

ScholarsArchive@OSU

Estimating diameter inside bark at various heights in young Douglas fir trees

Mycorrhizae on Douglas fir and Ponderosa pine seedlings

The economic feasibility of preheating Douglas-fir blocks prior to peeling

Isoenzyme polymorphism in provenances of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco var. menziesii)

Nutrient cycling under 450-year-old Douglas-fir stands

Public timber supply alternatives in the Douglas-fir region

The loading of second-growth Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco): to simulate the forces acting on an intermediate support tree

Effect of seedling characteristics on Kraft pulping properties of young Douglas-fir

Comparative development of a thinned and a natural Douglas-fir stand from 45 to 60 years of age

Variation in the foliar nutrient status of several Douglas-fir provenances

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