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Environmental fluctuation and cohort strength of Dover sole (Microstomus pacificus and English sole (Parophrys vetulus)

Creator:: Hayman, Robert August
Abstract:: Models were developed that described cohort strength of female Dover sole (Microstomus pacificus) and female English sole (Parophrys vetulus) in stocks off the Columbia River as functions of environmental variables. The environmental variables considered were those that could hypothetically influence spawning success or survival. They included a spawning power index,...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Robert August Hayman for the

Survival of Phytophthora lateralis in an organic matter fraction of the soil

Creator:: Ostrofsky, William Dow
Abstract:: Chamaecyparis lawsoniana, an extremely valuable timber tree species, is highly susceptible to a serious, soil -borne root disease caused by Phytophthora lateralis. Disease outbreaks of epidemic proportions are continually causing high mortality in natural stands of the host tree. Practical control measures rely on an understanding of the many factors...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy Lewis F. Roth Chamaecyparis lawsoniana, an extremely valuable timber tree species

Factors associated with stand establishment and subsequent grain yield of seven wheat cultivars and selected progeny (Triticum aestivum, L em thell) when grown under three diverse environments

Creator:: Vahabian, Mohammad Ali
Resource Type:: Dissertation
Full Text:: . Thanks are extended to Dr. W. E. Kronstad, Dr. F. F. Bolton, Dr. M. L. Powelson, Dr. R. J. Metzger, Dr

The inheritance of ten quantitative characteristics in sweet corn (Zea mays L.)

Creator:: Hansen, Leon Afton
Abstract:: The inheritance of ten characteristics of sweet corn was studied by quantitative genetic analysis. Characters studied were tassel date, silk date, plant height, ear height, shank length, husk extension, tip blanking, number of kernel rows, ear length, and weight of the first ear. Diallel crosses were made between seven inbred...
Resource Type:: Dissertation
Full Text:: characters were measured on the seven parents and 21 F crosses in two years and on the 21 reciprocal F

Studies on the vesicular-arbuscular mycorrhizae of Easter lily in the Pacific Northwest

Creator:: Ames, Robert Norman
Abstract:: A study was conducted to characterize the vesicular-arbuscular (VA) mycorrhizal fungi of commercially grown Easter lily. Monthly field soil and root samples were collected from March through September, 1975, from five fields in the coastal area of southern Oregon and northern California. Soil sievings were inoculated onto clover, onion and...
Resource Type:: Masters Thesis
Full Text:: mycorrhizae on trap plants, and was subsequently inoculated onto lilies. More F. oxysporum was recovered

Combining ability and associations of agronomic traits involving three sources of dwarfism in wheat (Triticum aestivum, L. em Thell)

Creator:: Maya de Leon, Jose Luis
Abstract:: Three genetically different dwarf cultivars of spring wheat were evaluated as potential sources of short stature to use in a wheat improvement program. The study involved a five parent diallel cross which included a semidwarf, a standard height and three dwarf cultivars. The genetic sources of dwarfism included a Norma...
Resource Type:: Dissertation
Full Text:: Tom Thumb called Tordo, and Olesen dwarf. Experimental material consisted of parental lines, F l' F

An assessment of differences in morale between and among selected union and non-union community college faculty

Creator:: Hasle, Frederick G.
Abstract:: The general purpose of this study was to investigate the question: Is unionization disruptive of intra-institutional relationships on community college campuses ? The introduction of faculty unions into the college community is often perceived, even by proponents, as a process which engenders hostility and disruption. Social conflict theory is the...
Resource Type:: Dissertation
Full Text:: were computed using a two- way analysis of variance, F statistic, to test the following hypotheses: 1

Development of vesicular-arbuscular mycorrhizae and pink root (Pyrenochaeta terrestris) in commercial onion fields in relation to nutrition, pH, and soil fumigation

Creator:: McGraw, Anne-Cressey
Resource Type:: Masters Thesis
Full Text:: , 73, 77, 92). Hayman (39) found the greatest VA mycorrhizal infection in fields with the highest

The relationship of student teachers' work environment preference to verbal classroom behavior

Creator:: Sturm, Dieter Werner Fritz
Abstract:: This investigation was designed to determine the relationship of student teachers' commitment to the set of values, attitudes, and behaviors that are characteristically fostered and rewarded by bureaucratic organizations and their verbal classroom behavior under actual teaching conditions, The purpose of the study was expressed by the formulation of an...
Resource Type:: Dissertation
Full Text:: interaction of bureaucracy and personality, described by Merton (1952) have increased the present knowledge

Root symbionts and soil microorganisms associated with actinorrhizal plants

Creator:: Rose, Sharon Lee
Abstract:: Symbiotic associations are established between non-leguminous (actinorrhizal) nitrogen-fixing flowering plants and two categories of microorganisms: mycorrhizal fungi and a filamentous actinomycete. The actinomydete induces nodule formation and produces nitrogenase, the enzyme responsible for the reduction of atmospheric nitrogen to a form available to higher plants. The mycorrhizal fungus is found...
Resource Type:: Dissertation
Full Text:: (9):459-470. Mosse, B., C. Li Powell, and D.S. Hayman. 1976. Plant growth responses to vesicular

ScholarsArchive@OSU

Environmental fluctuation and cohort strength of Dover sole (Microstomus pacificus and English sole (Parophrys vetulus)

Survival of Phytophthora lateralis in an organic matter fraction of the soil

Factors associated with stand establishment and subsequent grain yield of seven wheat cultivars and selected progeny (Triticum aestivum, L em thell) when grown under three diverse environments

The inheritance of ten quantitative characteristics in sweet corn (Zea mays L.)

Studies on the vesicular-arbuscular mycorrhizae of Easter lily in the Pacific Northwest

Combining ability and associations of agronomic traits involving three sources of dwarfism in wheat (Triticum aestivum, L. em Thell)

An assessment of differences in morale between and among selected union and non-union community college faculty

Development of vesicular-arbuscular mycorrhizae and pink root (Pyrenochaeta terrestris) in commercial onion fields in relation to nutrition, pH, and soil fumigation

The relationship of student teachers' work environment preference to verbal classroom behavior

Root symbionts and soil microorganisms associated with actinorrhizal plants

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