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An investigation of cherry gummosis

Creator:: Griffin, F. L. (Frederick Llewellyn)
Resource Type:: Masters Thesis
Full Text:: plants, we may arrive at a better un derstanding of the significance of gummosis in Prunus ayium and P

Notes on some of the weeds of the Willamette Valley

Creator:: Gilbert, Henry C.
Resource Type:: Masters Thesis
Full Text:: . Redacted for privacy S p-....- - - fl :ÑAu1ture. Redacted for privacy Chairman, Committee on radnate

Studies of yellow rust of Rubus

Creator:: Lund, Walter Thomas
Resource Type:: Masters Thesis
Full Text:: Lund, Walter Thomas THESIS on D 'C STUDIES 0F

Succession and certain adaptive features of plants native to the sand dunes of the Oregon coast

Creator:: Kumler, Marion Lawrence, 1941-
Abstract:: The vegetation of the Oregon coast is characterized by a variety of stages of plant succession which are repeated widely throughout the sand dune area. During the years from 1960 to 1963 the gradation of upland sand dune succession was studied on 48 plots within a 150 mile section of...
Resource Type:: Dissertation
Full Text:: to Dean H. P. Hansen of the Graduate School for advice and encouragement during the course of the

Active survival of Verticillium dahliae in soil

Creator:: Martinson, Charlie Anton
Resource Type:: Dissertation
Full Text:: United Statesoriginated near Ashfield, Massachusetts, in 1812 (77, p. 15). The itinerant industry was

Contracting nucleolar vacuoles in somatic tobacco cells growing in microcultures

Creator:: Johnson, John Morris
Abstract:: Contracting nucleolar vacuoles are a general and consistent feature of somatic tobacco cells growing in microcultures. Nucleolar vacuoles were studied in cells from callus tissues of two single-cell clones, H-196 and H-239, of hybrid tobacco (Nicotiana tabacum X N. glutinosa). Vacuoles periodically contracted either completely or incompletely, apparently releasing a...
Resource Type:: Dissertation
Full Text:: VACUOLES IN SOMATIC TOBACCO CELLS GROWING IN MICROCULTURES Abstract approved (Major p fessor

An analysis of montane forest vegetation on the east flank of the central Oregon Cascades

Creator:: West, Neil E.
Abstract:: Montane forest vegetation as it occurs on the east flank of the central Oregon Cascades has provided excellent conditions for a "natural experiment" in the use of various methodologies in studying vegetational distribution. This "experiment" has reflected on some theory and practice for the discipline of plant synecology. Detailed descriptions,...
Resource Type:: Dissertation
Full Text:: the soils in- formation presented herein. Dr. Roy A. Young and Dean H. P. Hansen gave

Comparative anatomical study of three species of Microseris

Creator:: Soedjono, Estiti Harti
Abstract:: Three growth forms of the genus Microseris, of the tribe Cichorieae, family Compositae, were compared with respect to their anatomical structure. The purpose of this study was to clarify lines of evolutionary specialization in the genus. Two of the three species studied, M. laciniata and M. borealis, are perennials, while...
Resource Type:: Dissertation
Full Text:: variation in growth 2 form (11, p. 207; 55), among them the genus Microseris, of the tribe

Studies on viruses isolated from roses with rose mosaic symptoms

Creator:: Watson, Thomas Ray
Abstract:: Previous work on the rose mosaic virus has produced uncertainty concerning the identity and properties of this virus. This work was undertaken to help establish the true identity of the virus and to determine some of its properties. A mechanically transmissible virus associated with rose mosaic virus disease of Rosa...
Resource Type:: Masters Thesis
Full Text:: symptoms AN ABSTRACT OF THE THESIS OF THOMAS RAY WATSON for the M. S. in Plant Pathology (Name

An improved selective medium for the isolation of Verticillium dahliae Kleb

Creator:: Zehsazian, Hassan
Abstract:: Sodium polypectate (SPP) was added to an ethanol-streptomycin agar (ESA) medium to determine if it would provide a selective substrate for the growth of Verticillium dahliae and for isolation of the fungus from soil and plant tissues in the presence of saprophytic fungi. Sodium polypectate improved greatly the formation and...
Resource Type:: Masters Thesis
Full Text:: darkened cell walls (14, p. 138-140; 21, p. 347). Rudolph (39, p. 252-254), in 1931, expressed his view

ScholarsArchive@OSU

An investigation of cherry gummosis

Notes on some of the weeds of the Willamette Valley

Studies of yellow rust of Rubus

Succession and certain adaptive features of plants native to the sand dunes of the Oregon coast

Active survival of Verticillium dahliae in soil

Contracting nucleolar vacuoles in somatic tobacco cells growing in microcultures

An analysis of montane forest vegetation on the east flank of the central Oregon Cascades

Comparative anatomical study of three species of Microseris

Studies on viruses isolated from roses with rose mosaic symptoms

An improved selective medium for the isolation of Verticillium dahliae Kleb

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