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The differential response of Fraxinus pennsylvanica, Liquidambar styraciflua, and Acer saccharinum to picloram as measured by CO₂ absorption and evolution

Creator:: Webb, Warren Lewis, 1935-
Abstract:: The tolerance of woody plants to picloram (4amino-3,5,6-trichloropicolinic acid) has been shown by field applications to vary from mild to extreme. A laboratory study was done to investigate the basic causes for this range of tolerance known to exist among three woody plant species, Fraxinus pennsylvanics, March, (green ash) resistant,...
Resource Type:: Masters Thesis

Selective filtering of light by coniferous forests and minimum light energy requirements for regeneration

Creator:: Atzet, Thomas
Abstract:: Spectroradiometric analyses were made to examine the light filtering capacity of coniferous forests and to establish the lower light energy limits for growth of Pseudotsuga menziesii (Mirb. ) Franco, Abies concolor (Gord. and Glend.) Lindi. and Pinus ponderosa Dougi. Visible energy(400-750 nm) was recorded at 48 points under four mixed...
Resource Type:: Masters Thesis

Environmental and other factors in the response of plants to herbicides

Creator:: Freed, Virgil H. (Virgil Haven), 1919- and Morris, R. O. (Roy Owen), 1934-
Abstract:: Published October 1967. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report

The effects of univalent cations on the inductive formation of nitrate reductase

Creator:: Nitsos, Ronald Eugene
Abstract:: An investigation was undertaken to determine whether potassium is indeed necessary for the in vivo synthesis of a specific protein. The effects of univalent cations on the inductive formation of nitrate reductase and on the level of activity of representative non-adaptive enzyme are presented. Cultures of Neurospora crassa were grown...
Resource Type:: Masters Thesis
Full Text:: little effect on the activity of this enzyme. In regards to the thiol requirement, Davie. Koningsberger

Effect of winter chilling and photoperiod on growth resumption in Douglas-fir, Pseudotsuga menziesii (Mirb.) Franko

Creator:: Wommack, Donald Everett
Resource Type:: Masters Thesis

Laboratory studies of periphyton production and community metabolism in lotic environments

Creator:: McIntire, C. David
Abstract:: See pdf
Resource Type:: Dissertation
Full Text:: -Respiration Chamber 19 RESULTS 21 Effect of Variation in Intensity of Illumination on Primary Production 21

Stimulation of plant growth by sub-lethal concentrations of herbicides

Creator:: Wiedman, Steven John
Abstract:: Studies were conducted to determine the extent and nature of sub-lethal effects of herbicides on plant growth. At least one herbicide from each major chemical class of herbicides was evaluated under greenhouse conditions. Oat plants were grown in sand culture to eliminate soil interferences. Herbicides were applied pre-emergence in nutrient...
Resource Type:: Dissertation
Full Text:: OF THE LITERATURE Stimulatory Effect of Herbicides on Plant Growth Auxin Types Phenoxy Group. The

The effect of light intensity on the organic composition of marine phytoplankton diatoms

Creator:: Marmelstein, Allan
Abstract:: Investigation was made into the influence of changing light intensity on the organic and elemental composition of two species of marine diatoms, Ditylum brightwellii and Skeletonema costatum. Analysis was made of the relative changes in soluble and insoluble carbohydrate; polar, non-polar, and total lipid; amino acids; proteins; and total carbon,...
Resource Type:: Dissertation
Full Text:: ) Title: THE EFFECT OF LIGHT INTENSITY ON THE ORGANIC COMPOSITION OF MARINE Abstract Approved

The influence of dormant brush sprays on forest succession in Western Oregon

Creator:: O'Dell, Tharon Earl
Abstract:: This study was designed to learn the effect a specific herbicide practice on plant communities. Data were obtained from brushfields that had been aerially sprayed with 2,4-D (2,4 dichiorophenoxyacetic acid) and/or 2,4,5-T (2,4,5 trichlorophenoxyacetic acid). Qualitative data on species composition, cover percent, height, response to herbicide and site description were...
Resource Type:: Masters Thesis

Design of an apparatus with controlled rates of temperature change for use in cold tolerance tests of conifers

Creator:: Wessell, William James
Abstract:: An apparatus was designed to permit freezing tests of needles and other tissue parts from coniferous trees under controlled rates of temperature change with time. The design is based on the principle of a balanced system of refrigeration demand and heat input to achieve a steady temperature state. The apparatus...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The differential response of Fraxinus pennsylvanica, Liquidambar styraciflua, and Acer saccharinum to picloram as measured by CO₂ absorption and evolution

Selective filtering of light by coniferous forests and minimum light energy requirements for regeneration

Environmental and other factors in the response of plants to herbicides

The effects of univalent cations on the inductive formation of nitrate reductase

Effect of winter chilling and photoperiod on growth resumption in Douglas-fir, Pseudotsuga menziesii (Mirb.) Franko

Laboratory studies of periphyton production and community metabolism in lotic environments

Stimulation of plant growth by sub-lethal concentrations of herbicides

The effect of light intensity on the organic composition of marine phytoplankton diatoms

The influence of dormant brush sprays on forest succession in Western Oregon

Design of an apparatus with controlled rates of temperature change for use in cold tolerance tests of conifers

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