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The life cycle of the trematode Telolecithus pugetensis Lloyd & Guberlet, 1932

Creator:: DeMartini, John David
Abstract:: The fish Cymatogaster aggregata, Embiotoca lateralis and Phanerodon furcatus served as definitive hosts for the trematode Telolecithus pugetensis Lloyd and Guberlet. Eggs that were collected from the terminal part of the uterus of mature worms were found to have undergone several cleavages, but complete development was observed only in some...
Resource Type:: Dissertation
Full Text:: TREMATODE TELOLECITHUS PUGETENSIS LLOYD & GUBERLE, 1932 by JOHN DAVID DEMARTINI A THESIS submitted to

The influence of herbaceous vegetation on coniferous seedling habitat in old field plantations

Creator:: Newton, Michael, 1932-
Abstract:: Plantation failures on abandoned pasture lands and old clearcuts are associated frequently with heavy stands of herbaceous vegetation. The competitive influence of the vegetation has been described as the causative factor of mortality, but quantitative estimates of vegetation influence are lacking. The development of chemicals with promise for selectivity in...
Resource Type:: Dissertation

A biosystematic study of some North American species of Agrostis L. and Podagrostis (Griseb.) Scribn. & Merr.

Creator:: Carlbom, Curt Gerald, 1932-
Abstract:: A taxonomic investigation was made of 24 taxa belonging to the section Trichodium (Michx.) Trin., of Agrostis, and the genus Podagrostis. Experimental methods were employed, including: uniform garden culture of transplants and plants grown from seeds collected in natural populations; breeding studies; physiological and phenological investigations; cytological studies; ecological studies...
Resource Type:: Dissertation
Full Text:: Podagrostis. Rydberg's floras (1917, 1932) are particularly valu- able for the Rocky Mountain and the

Inheritance of resistance to barley yellow dwarf virus disease in barley

Creator:: Sieveking, William Earl, 1932-
Abstract:: Studies were conducted on artificially infected susceptible and resistant barley varieties in an attempt to determine the effect of barley yellow dwarf virus on the growth and development of these plants. A resistant and a susceptible variety were infected at four stages of growth and harvested at two stages. Roots,...
Resource Type:: Dissertation

Visual and olfactory responses of the horn fly, Haematobia irritans (Linn.)

Creator:: Hargett, Louie Thomas, 1932-
Resource Type:: Dissertation

A guide to school district reorganization for Umatilla County, Oregon

Creator:: Ferguson, Earl Eugene, 1932-
Abstract:: Purpose of the Study: The purpose of this research was to study the school districts in Umatilla County as they existed in 1962-3 and to formulate a guide for reorganization of these districts into sound efficient units. The following sub-factors were considered essential to this research, and were dealt with...
Resource Type:: Dissertation

Interaction between dipyridylium herbicides and microbes in soil

Creator:: Tu, Chin-Ming, 1932-
Abstract:: The herbicides Diquat (1, 1'-ethylene-2, 2'-dipyridylium dibromide), Paraquat (1, 1'-dimethyl-4, 4'-dipyridylium dichloride), and Gramoxone (1, 1'-dimethyl-4, 4'-dipyridylium dimethyl sulphate), and the spreader X-77, a mixture of alkylaryl-polyethylene glycol, free fatty acids and isopropanol, were tested by several soil microbial methods in an attempt to find out if concentrations of these...
Resource Type:: Dissertation

Biochemical properties of an endogenous inhibitor of house fly (Musca domestica L.) microsomal oxidations

Creator:: Schonbrod, Robert D., 1932-
Abstract:: Endogenous inhibitors of insect microsomal oxidases are a serious problem in in-vitro studies of insecticide metabolism. Their number, chemical nature, modes of action, and their effectiveness as inhibitors are unknown. In the case of house flies, there may be as many as four inhibitors. The most important of these is...
Resource Type:: Dissertation

The development of new instructional media for the offset duplicating process utilizing the audiscan system

Creator:: Schoesler, Ronald Dean, 1932-
Abstract:: The research study discussed and amplified in this paper consisted of the development and evaluation of two instructional concepts illustrating the procedures for 1) typing an offset master, and 2) duplicating offset copies. Each concept was prepared for use with the Audiscan projector, which utilizes a 16mm continuous loop filmstrip...
Resource Type:: Dissertation

Environmental knowledge and beliefs among grade ten students in Australia

Creator:: Eyers, Vivian George, 1932-
Abstract:: The purpose of the study was to survey aspects of environmental knowledge and beliefs among Grade 10 students in Australia, in the belief that such information would be useful for workers in the developing field of environmental education there. A survey instrument prepared and used for a similar purpose in...
Resource Type:: Dissertation

ScholarsArchive@OSU

The life cycle of the trematode Telolecithus pugetensis Lloyd & Guberlet, 1932

The influence of herbaceous vegetation on coniferous seedling habitat in old field plantations

A biosystematic study of some North American species of Agrostis L. and Podagrostis (Griseb.) Scribn. & Merr.

Inheritance of resistance to barley yellow dwarf virus disease in barley

Visual and olfactory responses of the horn fly, Haematobia irritans (Linn.)

A guide to school district reorganization for Umatilla County, Oregon

Interaction between dipyridylium herbicides and microbes in soil

Biochemical properties of an endogenous inhibitor of house fly (Musca domestica L.) microsomal oxidations

The development of new instructional media for the offset duplicating process utilizing the audiscan system

Environmental knowledge and beliefs among grade ten students in Australia

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