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Life-history and physiological trade-offs to reproduction of invasive and noninvasive Rubus

Creator:: McDowell, Susan C.
Abstract:: The goal of this dissertation was to improve our understanding of the physiology and life-history of invasive plants and of the mechanisms underlying life-history trade-offs. I compared invasive and noninvasive species of Rubus (blackberry) that grow together in the Pacific Northwest. Three hypotheses were investigated: (1) Invasive Rubus have higher...
Resource Type:: Dissertation
Full Text:: Bond, Rick Meilan, and Pat Muir. Your insightful ideas, enthusiasm, and support have enabled me to

The impact of doctoral education on the marriages of doctoral students

Creator:: Dudzik, Shirley M.
Abstract:: The study was designed to determine the effect of doctoral study upon the marriages of doctoral students. The sample for the research was drawn from the total population of married doctoral students enrolled in Oregon State University/Western Oregon State College's School of Education and Oregon State University's College of Home...
Resource Type:: Dissertation
Full Text:: . Dr. Margaret Stamps and Dr. Pat Wells understood the difficulties faced by women with families who

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:: , John Thomas Howell, C. Leo Hitchcock, Marion Ownbey, Thomas Soderstrom and G. Ledyard Stebbins, Jr

The geographic variation and distribution of the long-toed salamander, Ambystoma macrodactylum Baird

Creator:: Ferguson, Denzel
Resource Type:: Dissertation
Full Text:: . Robert C. Stebbins, University of California; Dr. erineth Walkera College of Puget sound. The following

The ecological sympatric relations of Plethodon dunni and Plethodon vehiculum

Creator:: Dumas, Philip Conrad
Resource Type:: Dissertation
Full Text:: School Date thesis is presented J. Tyted by Pat Duiras Acknowledgements I wish to take this

A biosystematic study in the genus Aster, section Aster, in western North America

Creator:: Dean, Milton Lee
Abstract:: A biosystematic investigation was undertaken in 15 species and three subspecies of the genus Aster, in western North America. Previous studies had been based entirely on external morphological features, and it was believed that much could be learned about the natural affinities of the taxa by exploring their cytological and...
Resource Type:: Dissertation
Full Text:: Quartz Mt. summit. ssp. intermedius 395 California: Eldorado Co., head of Fallen Leaf Lake. Stebbins

A fistful of Astragalus : phenotypic and genotypic basis of the most taxon rich species in the North American flora

Creator:: Knaus, Brian J.
Abstract:: The study of the infra-specific ranks (i.e., subspecies and variety) can be considered the study of the process of speciation. Astragalus lentiginosus Douglas ex Hooker (Fabaceae) is the most taxon rich species in the U.S. flora currently including 40 taxonomic varieties. These varieties were described using traditional taxonomic methods primarily...
Resource Type:: Dissertation
Full Text:: thank: My family: John H. Hoffman�, Pat Hoffman Friedman�, M. Jane Knaus, Alan L. Knaus, Darin A

Somaclonal variation, regeneration and transformation of quince (Cydonia oblonga Mill.) and pear (Pyrus communis L.)

Creator:: Bunnag, Sumonthip
Abstract:: Quince (Cydonia oblonga Mill.) is widely used as a dwarfing rootstock for pear {Pyrus communis L.). The disadvantage of this rootstock is its inefficient uptake of Fe, resulting in leaf chlorosis. Application of tissue culture and gene transfer techniques may lead to production of quince clones with improved Fe efficiency....
Resource Type:: Dissertation
Full Text:: , Tim Righetti, Pat Hays, Tom Savage and Bill Proesting for their help, suggestions, and comments on

The chromosomes of the Northwest ambystomid salamanders

Creator:: Humphrey, Donald Glen
Resource Type:: Dissertation

Developmental cranial osteology of three species of Rana (Anura)

Creator:: Altig, Ronald Gail
Abstract:: Developmental series of Rana pretiosa (110 specimens), R. cascadae (100 specimens) and R. aurora (115 specimens) were bone stained and cleared in glycerin. The growth and developmental patterns of the skull and selected bones were followed from the first appearance of bone through adult stages. The sequential appearance of the...
Resource Type:: Dissertation
Full Text:: ) were bone stained and cleared in glycerin. The growth and developmental pat- terns of the skull and

ScholarsArchive@OSU

Life-history and physiological trade-offs to reproduction of invasive and noninvasive Rubus

The impact of doctoral education on the marriages of doctoral students

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

The geographic variation and distribution of the long-toed salamander, Ambystoma macrodactylum Baird

The ecological sympatric relations of Plethodon dunni and Plethodon vehiculum

A biosystematic study in the genus Aster, section Aster, in western North America

A fistful of Astragalus : phenotypic and genotypic basis of the most taxon rich species in the North American flora

Somaclonal variation, regeneration and transformation of quince (Cydonia oblonga Mill.) and pear (Pyrus communis L.)

The chromosomes of the Northwest ambystomid salamanders

Developmental cranial osteology of three species of Rana (Anura)

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