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The role of certain non-leguminous woody species in the nitrogen nutrition of some conifer seedlings

Creator:: Wollum, Arthur George
Resource Type:: Masters Thesis
Full Text:: course of this investigation . To Drs . W. W. Chilcote and C. M. Gilmour a word of appreciation for

Phytosociology of the ponderosa pine type on pumice soils in the Upper Williamson River Basin, Klamath County, Oregon

Creator:: Volland, Leonard A.
Abstract:: The study was conducted over approximately 191,000 acres in central Klamath County, Oregon. The research had three objectives: first, to describe and classify the seral and near-climax vegetation by using polyclimax principles; secondly, to determine the southern extension of five plant associations and one plant associes as previously described by...
Resource Type:: Masters Thesis
Full Text:: writer is grateful to the members of his graduate committee (Drs. C. E. Poulton, C. T, Youngberg, W

An ecological reconnaissance of the artemisia steppe on the east central Owyee uplands of Oregon

Creator:: Culver, Roger Norman
Abstract:: As the management of range lands is intensified or as improvement activity is increased, a critical need is seen to refine the understanding of the ecology of these lands. If soil surveys on range lands are to be meaningful and useful, the relationship between the fundamental ecological units and the...
Resource Type:: Masters Thesis
Full Text:: - - Dr. C. T. Youngberg, Dr. D. W. Hedrick, and Dr. W. W. Chilcote. The writer is grateful for support

Effect of scald (Rhynchosporium secalis) on yield and yield components of twelve winter barley (Hordeum vulgare) genotypes

Creator:: Zencirci, Nusret
Abstract:: The effects of scald epidemics, induced by Rhynchosporium secalis (Oud.) Davis, on the yield and quality of winter malting barley have not been reported. The principal objective of this investigation was to assess yield and quality losses in resistant and susceptible winter barley genotypes in diverse environments of the Pacific...
Resource Type:: Masters Thesis
Full Text:: Agric. Public. No : 1458. James, W. C., J. E. E. Jenkins, and J. L. Jemmet. 1968. The relationship

Removal of fungal stain from ponderosa pine sapwood using peroxide and caustic bleaches

Creator:: Lee, Beom-Goo
Resource Type:: Masters Thesis

Characterization of selected plant communities within the Tillamook Burn in northwestern Oregon

Creator:: Bailey, Arthur W.
Abstract:: A study was initiated in 1961 to characterize seral plant communities in a part of the Cedar Creek drainage in the Tillamook Burn. Stratification of vegetation into ecological units was a necessary first step in conifer-animal damage studies supported by the Oregon State Game Commission. Reconnaissance information was recorded in...
Resource Type:: Masters Thesis
Full Text:: members of my com mittee: Dr. D. W. Hedrick, Mr. L. W. Kuhn, and Dr. C. T. Youngberg. The writer is

Nitrogen 15 studies with nonleguminous nitrogen-fixing plants

Creator:: Webster, Stephen Russell
Abstract:: Snowbrush (Ceanothus velutinus), red alder (Alnus rubra), and bitterbrush (Purshia tridentata) are three important nitrogen- fixing nonleguminous species. They commonly grow in association with commercially important conifers in western United States and conceivably could be utilized to add nitrogen to forest ecosystems. Nitrogen 15 gas was used to study nitrogen...
Resource Type:: Masters Thesis
Full Text:: , II throughout the study; the willingness of Drs. C. M. Gilmour and W. K. Ferrell to advise and

Photoinduction of kaurene synthetase, an enzyme of the gibberellin biosynthetic pathway, during de-etiolation of pea seedlings

Creator:: Gomez-Navarrete, Gladys
Abstract:: Previous investigations have shown that the enzymes catalyzing the biosynthesis of the gibberellin-type of hormones from mevalonic acid in plants are compartmentalized in plastids. Moreover, the activity of one of the key enzymes in the biosynthetic sequence, kaurene synthetase, exhibits markedly enhanced activity when a dark-grown pea seedling undergoes de-etiolation...
Resource Type:: Masters Thesis
Full Text:: h l o r o p h y l l C o n t e n t ( p g c h l o r o p h y l l g ' 1 f r w t ) 23

Inheritance of resistance to Septoria leaf blotch in selected spring bread wheat genotypes (Triticum aestivum L.)

Creator:: Briceno Felix, Guillermo Ariel
Abstract:: Septoria leaf blotch of wheat is a major biotic factor limiting the grain yield. To determine the nature of inheritance involving selected genotypes, three resistant semidwarf spring wheat lines exhibiting durable global resistance and one susceptible cultivar were crossed in all possible combinations, excluding reciprocals. Parents, Fl, F2, and F3...
Resource Type:: Masters Thesis
Full Text:: extended to Drs. Christopher C. Mundt and Jerry W. Arnold, for serving on my graduate committee. I would

Influences of forest management practices on cavity resources in mixed deciduous forest in Thailand

Creator:: Pattanavibool, Anak
Resource Type:: Masters Thesis
Full Text:: encouragement and unfailing advise expressed throughout this study. I also thank Drs. B. E. Coblentz and W. C

ScholarsArchive@OSU

The role of certain non-leguminous woody species in the nitrogen nutrition of some conifer seedlings

Phytosociology of the ponderosa pine type on pumice soils in the Upper Williamson River Basin, Klamath County, Oregon

An ecological reconnaissance of the artemisia steppe on the east central Owyee uplands of Oregon

Effect of scald (Rhynchosporium secalis) on yield and yield components of twelve winter barley (Hordeum vulgare) genotypes

Removal of fungal stain from ponderosa pine sapwood using peroxide and caustic bleaches

Characterization of selected plant communities within the Tillamook Burn in northwestern Oregon

Nitrogen 15 studies with nonleguminous nitrogen-fixing plants

Photoinduction of kaurene synthetase, an enzyme of the gibberellin biosynthetic pathway, during de-etiolation of pea seedlings

Inheritance of resistance to Septoria leaf blotch in selected spring bread wheat genotypes (Triticum aestivum L.)

Influences of forest management practices on cavity resources in mixed deciduous forest in Thailand

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