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Comparative rates of CO₂ production from the forest floor in the Douglas-fir ecosystem

Creator:: Phillips, Michael John
Abstract:: To obtain data on the decomposition of the forest floor, a battery operated electrolytic respirometer was developed making it possible to measure CO₂ evolution from field moist forest floor samples in situ independent of root respiration. Banks of four respirometers powered by two 12-volt batteries were installed in three old...
Resource Type:: Masters Thesis
Full Text:: CO2 PRODUCTION FROM THE FOREST FLOOR IN THE DOUGLAS-FIR ECOSYSTEM Redacted for Privacy ChesterA

The physiology of plagiotropic growth of rooted cuttings of Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco]

Creator:: Starbuck, Christopher J.
Abstract:: Experiments were conducted to determine if the plagiotropic growth habit of rooted cuttings of Douglas-fir might result from a system favoring the accumulation of indoleacetic acid in the adaxial side of the shoot in response to vertical placement. Actively growing excised branch terminals were subjected to gravitational disorientation to determine...
Resource Type:: Dissertation
Full Text:: OF PLAGIOTROPIC GROWTH OF ROOTED CUTTINGS OF .DOUGLAS-FIR [PSEUDOTSUGA MENZIESII (MIRB.) FRANCO

Water relations and the root regeneration response of Douglas-fir

Creator:: Cobb, Cheryl Anne
Abstract:: The effect of lifting date and root-pruning treatments on water potential, root regeneration, and shoot growth of six-month-old and three-year-old Douglas-fir seedlings bare-root transplanted into a growth chamber, and sawdust bed, respectively, was studied. Root growth in six-month-old and three-year-old seedlings was highest in February and August respectively. Survival was...
Resource Type:: Masters Thesis
Full Text:: water potential of Douglas-fir following transplanting (four weeks) at different times of the year

Root initiation and elongation in Douglas-fir, Pseudotsuga menziesii (Mirb.) franco, stem cuttings as related to bud and cambial activity

Creator:: Bhella, Harbans Singh
Abstract:: The relation of bud and cambial activity to root initiation and elongation in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stem cuttings was studied through two successive growth cycles. Stem cuttings of current season's growth were taken periodically from field-grown Douglas-fir trees to determine: (1) origin and development of root initials; and...
Resource Type:: Dissertation
Full Text:: , 1973 (Major) (Date) Title: ROOT INITIATION AND ELONGATION IN DOUGLAS-FIR, PSEUDOTSUGA

Influences of shoot origin and certain pre- and post-severance treatments on the rooting and growth characteristics of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stem cuttings

Creator:: Black, Darvil Kim
Resource Type:: Dissertation
Full Text:: ROOTING AND GROWTH CHARACTERISTICS OF DOUGLAS-FIR (PSEUDOTSUGA MENZIESII (MIRB. ) FRANCO) STEM

Anatomical and chemical characteristics of the Douglas-fir (Pseudotsuga menziesii (mirb.) Franko) phellem cell

Creator:: Litvay, John Dennis
Abstract:: The objectives of this study were to 1) characterize the layering in the wall of the Douglas-fir (Pseudotsuga. menziesii (Mirb. ) Franco) phellem cell, 2) determine the pitting present in this cell wall and 3) determine what compounds are present in the middle lamella of this cell. To accomplish the...
Resource Type:: Dissertation

Douglas-fir bark : water-soluble carbohydrates and alkaline degradation of a xylan

Creator:: Zerrudo, Jose Velmonte
Resource Type:: Dissertation

The influence of seed source origin and phenological characteristics on wood quality in a young Douglas-Fir Provenance Plantation

Creator:: Robinson, Walter P.
Abstract:: The relationships of several wood quality traits with seed origin and phenological characteristics, measured at a young age, were tested from six seed sources in a young Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) provenance plantation. The wood quality traits measured were wood density, uniformity of wood density, percentage latewood, fiber length,...
Resource Type:: Masters Thesis

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

Determining moisture content and moisture sorption in Douglas-fir bark

Creator:: Litvay, John Dennis
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Comparative rates of CO₂ production from the forest floor in the Douglas-fir ecosystem

The physiology of plagiotropic growth of rooted cuttings of Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco]

Water relations and the root regeneration response of Douglas-fir

Root initiation and elongation in Douglas-fir, Pseudotsuga menziesii (Mirb.) franco, stem cuttings as related to bud and cambial activity

Influences of shoot origin and certain pre- and post-severance treatments on the rooting and growth characteristics of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stem cuttings

Anatomical and chemical characteristics of the Douglas-fir (Pseudotsuga menziesii (mirb.) Franko) phellem cell

Douglas-fir bark : water-soluble carbohydrates and alkaline degradation of a xylan

The influence of seed source origin and phenological characteristics on wood quality in a young Douglas-Fir Provenance Plantation

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

Determining moisture content and moisture sorption in Douglas-fir bark

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