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Economic, political and physical problems involved in expanding the cultivation of swamp rice in Sierra Leone

Creator:: Gilliland, Anne Huston
Abstract:: Swamp rice offers tropical populations the most feasible means of obtaining a dependable and plentiful supply of protein-rich cereals. An acre of swamp rice land will support many persons and the crop does not cause erosion. A further production of this type of rice appears warranted in Sierra Leone and...
Resource Type:: Masters Thesis
Full Text:: the rivers. The problem of land tenure in Sierra Leone, however, is a seri- ous one. Litigation

Effect of rumen fluid upon the preservation of bovine spermatozoa

Creator:: Lobo, Carlos Alfredo
Abstract:: Experiments were conducted to determine the effect of rumen fluid on live and motile spermatozoa of semen extended in yolk-citrate and stored at 4°C. Preliminary work showed that levels of rumen fluid below 10 percent were beneficial in keeping spermatozoan activity up to 14 days in storage. For more revealing...
Resource Type:: Masters Thesis
Full Text:: CARLOS ALFREDO LOBO A THESIS submitted to OREGON STATE UNIVERSITY in partial fulfillment of the

A comparison of some estimators in forest sampling

Creator:: Ek, Alan R.
Abstract:: The objectives of this study were to ascertain the relative precision and accuracy of certain estimators on several forest populations and to determine if relative performance could be predicted from knowledge of population characteristics. Performance was tested on three populations of trees drawn from stands in northern Ontario. The first...
Resource Type:: Dissertation

An appraisal of future economic conditions affecting the Pacific Coast Bartlett pear industry

Creator:: Ricks, Donald Jay
Resource Type:: Dissertation
Full Text:: Bartlett-pear production in many Pacific Coast areas. As a result, growers have established extensive new

Fauna of the Permian rocks near Quinn River Crossing, Nevada

Creator:: Lembach, Dixie Jane
Abstract:: The Permian rocks near Quinn River Crossing, Humboldt County, Nevada, crop out as a north-trending block-faulted ridge and consist of more than 2600 feet of middle Permian fossiliferous limestone. About 1000 feet of unfossiliferous cherty shales, sandstones, and conglomerates are associated with the limestone and are assumed also to be...
Resource Type:: Masters Thesis
Full Text:: Quinn River Crossing, Humboldt County, Nevada, crop out as a north -trending block -faulted ridge and

Certain factors affecting colonization of Ponderosa pine by Ips confusus (Leconte) (Coleoptera : Scolytidae)

Creator:: Pitman, Gary Boyd
Abstract:: The purpose of this study was to study in some detail host factors which influence the population dynamics of bark beetle. The dissertation objectives were to ascertain the applicability of utilizing osmotic pressure values and relative turgidity values of phloem tissue as indicators which reflect upon the physiological profile of...
Resource Type:: Dissertation
Full Text:: examine the function of a blue- staining fungus in the bark beetle infested tree syndrome; to

The flight and olfactory behavior of checkered beetles (Coleoptera cleridae) predatory on the douglas-fir beetle

Creator:: Harwood, Willard Garland
Abstract:: Three coleopterous predators associated with the Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins in a second growth forest of Douglas-fir (Pseudotsugae menziesii (Mirb. ) Franco) in western Oregon are Enoclerus sphegeus Fabriciup, E, lecontei Wolcott, and Thanasirnus undatulus Say. A study was undertaken with the following objectives: (1) to determine the diurnal...
Resource Type:: Masters Thesis
Full Text:: (Dendroctonus pseudotsugae Hopkins in a second growth forest of Douglas-fir (Pseudotsugae menziesii (Mirb

Phytochemical investigation of Arctostaphylos columbiana Piper and Arctostaphylos patula Greene

Creator:: Constantine, George Harmon
Abstract:: There are numerous references in the literature concerning the use of various Arctostaphylos species as medicinal plants. One of the species, A. uva-ursi, was listed in the United States official compendia from 1820 until 1946 as a urinary antiseptic. Many species indigenous to the Pacific Northwest were employed by the...
Resource Type:: Dissertation
Full Text:: Arctostaphylos species as medicinal plants. One of the species, A. uva-ursi, was listed in the United States

Oregon

Creator:: Armstrong, A. N.
Abstract:: Gerald W. Williams Collection
Resource Type:: Book
Full Text:: A. N. ARMSTRONG YE GALLEON PRESS FAIRFIELD, WASHINGTON 1969 PUNTED IN THE UNITED STATES OF

An illustrated key to the ferns of Oregon

Creator:: Pembrook, Helen Patricia O'Donahue
Abstract:: The purpose of the work is to enable students of botany to identify accurately Oregon ferns, both as living plants and as dried specimens. Therefore, it provides vegetative keys to the families, genera and species of the ferns (Class FILICINAE) found in Oregon. Correct names have been determined using the...
Resource Type:: Masters Thesis
Full Text:: accordance with 1961 edition of the International Code of Botan- ical Nomenclature. The synonomy, a

ScholarsArchive@OSU

Economic, political and physical problems involved in expanding the cultivation of swamp rice in Sierra Leone

Effect of rumen fluid upon the preservation of bovine spermatozoa

A comparison of some estimators in forest sampling

An appraisal of future economic conditions affecting the Pacific Coast Bartlett pear industry

Fauna of the Permian rocks near Quinn River Crossing, Nevada

Certain factors affecting colonization of Ponderosa pine by Ips confusus (Leconte) (Coleoptera : Scolytidae)

The flight and olfactory behavior of checkered beetles (Coleoptera cleridae) predatory on the douglas-fir beetle

Phytochemical investigation of Arctostaphylos columbiana Piper and Arctostaphylos patula Greene

Oregon

An illustrated key to the ferns of Oregon

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