Index Catalog // ScholarsArchive@OSU

Some cytological aspects of streak mottle virus in Lilium speciosum Thunberg

Creator:: Elser, John Elmore
Abstract:: Cultivated lilies include many garden varieties in addition to the Easter lily, Lilium longiflorum Thunb. A popular member of the garden group is Lilium speciosum Thunb., whose leaves can be discolored by a virus symptom described as streak mottle. This disorder is characterized by dashes of chlorotic tissue interspersed with...
Resource Type:: Masters Thesis
Full Text:: by ultrathin tissue sectioning for the electron microscope. Virology 7: 193 -219. Shalla, T. A

Examination of necrotic fleck-diseased Lilium longiflorum

Creator:: Lyons, Alan Robert
Resource Type:: Masters Thesis
Full Text:: Inhibition of Transmission Dr. R. 0. Hampton, U. S. D. A. and Dr. T. C. Allen, both of Oregon State

Latent viruses in apple varieties in Oregon nurseries

Creator:: Dimalla, Gerard George
Resource Type:: Masters Thesis
Full Text:: viruses. Nurserymen in Oregon have cooperated in a nursery improvement program to sectre virus free

Hybridization between Arctostaphylos viscida and A. canescens in Oregon

Creator:: Gottlieb, Leslie D., 1936-
Abstract:: Arctostaphylos viscida Parry and A. canescens Eastw., two well-known and frequently encountered manzanitas in the Siskiyou Mountains in southwestern Oregon, are shown to hybridize and to produce an extensive series of morphological intermediates. The hybridization occurs wherever populations of these two species meet at contact zones of serpentine and non-serpentine...
Resource Type:: Masters Thesis
Full Text:: X A x x «« 11 1/ xR x xK4 1019 V `« r t Kh x R x x ze 1 }r i / Q

Interactions between paired cultures as a basis for differentiating compatibility genotypes of Fomes cajanderi Karst. from glaze-damaged Douglas-fir

Creator:: Adams, David Howard
Abstract:: A study was undertaken to determine the reliability of the formation of a line of demarcation between paired cultures of Fomes cajanderi Karst. as an indicator of dissimilar compatibility genotypes. The results were applied to an assay of the number and location of compatibility genotypes in each of four glaze-damaged,...
Resource Type:: Masters Thesis
Full Text:: . } t t li. , , M, . A`t' i'..-.54i.,`,. 2> y`>;. 1r.r . , . `. IÿS. .52,{ t .$¡r 1 - r

The role of Verticillium albo-atrum Reinke and Berth in seed transmission and induction of a latent disease of Pelargonium

Creator:: Koocheki, Hormozdyar Khodadad
Abstract:: Many initially healthy Pelargonium seedlings developed symptoms of Verticillium wilt in an Oregon State University greenhouse when they attained blooming age. The symptoms first appeared in May as "edge burning," yellowing, and wilting of leaves. In late summer, these seedlings which were the offspring of Verticillium infected plants, became severely...
Resource Type:: Masters Thesis
Full Text:: seed transmission and induction of a latent disease of Pelargonium AN ABSTRACT OF THE THESIS OF

Physiologic specialization of stripe rust (Puccinia striiformis West.) in the Pacific Northwest

Creator:: Beaver, Richard Gary, 1939-
Abstract:: The physiologic specialization of nine isolates of stripe rust (Puccinia striiformis West.) collected in the Pacific Northwest was determined. The separation of races was based on the differential susceptibility of the following wheat varieties: Cappelle Desprez, Chinese 166, Dippes Triumph, Druchamp, Etoile de Choisy, Flamingo, Gaines, Golden, Ibis, Leda, Michigan...
Resource Type:: Masters Thesis
Full Text:: 4. Four race groups were identified on the differential wheat varieties when grown at a constant

Fungitoxicity of sodium n-methyldithio-carbamate (Vapam) and its decomposition products

Creator:: Elson, Joseph Earl
Abstract:: An assay for fungicidal activity of sodium N-methyldithiocarbamate (Na-MDC) and its decomposition products was developed in which there was a minimum influence due to the widely varying physical properties of the compounds (i.e. vapor pressure and water solubility). Decomposition of the toxicant during the tests was measured and held to...
Resource Type:: Masters Thesis
Full Text:: 2 3 ó P e r c e n t K i l l ( p r o b a b i l i t y s c a l e ) 99. o o o o

Soil moisture depletion trends under five plant species present on the Douglas-fir clear-cuts of Mary's Peak, Oregon

Creator:: Drew, Stephen Ernest
Abstract:: Soil moisture depletion trends under five plant species growing on the clear-cuts of the Marys Peak Watershed near Corvallis, Oregon, were followed during the summers of 1963 and 1964. The species were Holcus lanatus, Lotus crassifolius var. subglaber, Gaultheria shallon, Berberis nervosa, and Acer circinatum; and were dominant plants of...
Resource Type:: Masters Thesis
Full Text:: (Figure 2). E LE C T R IC A L R E S IS T A N C E (O H M S ) N _ O 300,000

Spatial and chronological patterns of Purshia tridentata as influenced by Pinus ponderosa overstory

Creator:: Sherman, Robert James
Abstract:: Twelve sites of uniform topography and soils were selected in the Pinus ponderosa/Purshia tridentata/Festuca idahoensis Association. These sites were located in the rain shadow on the east flank of the Oregon Cascades. A fire history in the form of fire scars on ponderosa pine was available for nine of these...
Resource Type:: Masters Thesis
Full Text:: , on an alternate section basis, from government hands to T. E. Hogg, under terms of a railway

ScholarsArchive@OSU

Some cytological aspects of streak mottle virus in Lilium speciosum Thunberg

Examination of necrotic fleck-diseased Lilium longiflorum

Latent viruses in apple varieties in Oregon nurseries

Hybridization between Arctostaphylos viscida and A. canescens in Oregon

Interactions between paired cultures as a basis for differentiating compatibility genotypes of Fomes cajanderi Karst. from glaze-damaged Douglas-fir

The role of Verticillium albo-atrum Reinke and Berth in seed transmission and induction of a latent disease of Pelargonium

Physiologic specialization of stripe rust (Puccinia striiformis West.) in the Pacific Northwest

Fungitoxicity of sodium n-methyldithio-carbamate (Vapam) and its decomposition products

Soil moisture depletion trends under five plant species present on the Douglas-fir clear-cuts of Mary's Peak, Oregon

Spatial and chronological patterns of Purshia tridentata as influenced by Pinus ponderosa overstory

Limit your search

Academic Affiliation

Advisor

Commencement Year

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search