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Impact of raspberry bushy dwarf virus, raspberry leaf mottle virus, and raspberry latent virus on plant growth and fruit crumbliness in red raspberry (Rubus idaeus L.) 'Meeker'

Creator:: Quito-Avila, Diego F.
Abstract:: The United States is the third-largest producer of raspberries in the world. Washington State leads the nation in red raspberry (Rubus idaeus L.) production. 'Meeker', the most grown red raspberry cultivar in the Pacific Northwest (Washington, Oregon and British Columbia, Canada) is highly susceptible to Raspberry crumbly fruit, a virusinduced...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Robert R. Martin The United States is the third-largest producer of raspberries in the

Seasonal pattern of secondary growth in stems of northern white spruce (Picea glauca (Moench) Voss)

Creator:: Gregory, Robert A.
Abstract:: Cambial activity in white spruce stems in Alaska was observed from April, 1964 to September, 1965 in over 300 samples taken from 50- to 60-year-old natural stands. Mitotic index was used as a measure of the rate of periclinal division of fusiform cells in the cambial zone. Anticlinal divisions are...
Resource Type:: Dissertation
Full Text:: white spruce (Picea glauca (moench) Voss)) AN ABSTRACT OF THE THESIS OF ROBERT AARON GREGORY for the

Evolution and Phylogeny of Gnetophytes: Evidence From the Anatomically Preserved Seed Cone Protoephedrites Eamesii gen. et sp nov. and the Seeds of Several Bennettitalean Species

Creator:: Rothwell, Gar W. and Stockey, Ruth A.
Abstract:: A fossil seed cone with characters that have been hypothesized as transitional to the origin of crown group gnetophytes has been discovered in Lower Cretaceous deposits on Vancouver Island, British Columbia, Canada. This cone, described as Protoephedrites eamesii gen. et sp. nov., provides the first anatomically preserved fossil evidence for...
Resource Type:: Article
Full Text:: Author(s): Gar W. Rothwell and Ruth A. Stockey Source: International Journal of Plant Sciences, Vol. 174

A Lower Cretaceous (Valanginian) seed cone provides the earliest fossil record for Picea (Pinaceae)

Creator:: Klymiuk, Ashley A. and Stockey, Ruth A.
Abstract:: Premise of study: Sequence analyses for Pinaceae have suggested that extant genera diverged in the late Mesozoic. While the fossil record indicates that Pinaceae was highly diverse during the Cretaceous, there are few records of living genera. This description of an anatomically preserved seed cone extends the fossil record for...
Resource Type:: Article
Full Text:: RECORD FOR PICEA (PINACEAE) 1 ASHLEY A. KLYMIUK 2,3,5 AND RUTH A

Pararaucaria carrii sp nov., anatomically preserved evidence for the conifer family cheirolepidiaceae in the northern hemisphere

Creator:: Stockey, Ruth A. and Rothwell, Gar W.
Abstract:: A cylindrical permineralized conifer seed cone has been identified from the Officer Member of the Trowbridge Formation, near Izee, in east-central Oregon. The cone is preserved in a Middle Jurassic (Callovian) marine calcium carbonate concretion, associated with araucarian seed cones, conifer twigs and wood, cycad seeds, fern rachides, and lycopodialean...
Resource Type:: Article
Full Text:: Hemisphere Author(s): Ruth A. Stockey and Gar W. Rothwell Source: International Journal of Plant Sciences

Unearthing the Cretaceous Diversification of Cornales

Creator:: Atkinson, Brian A.
Abstract:: The order Cornales (dogwoods) is the earliest diverging lineage within the most diverse group of flowering plants, the asterids (>80,000 species). Although molecular phylogenetics have significantly improved our understanding of cornalean systematics, early phylogenetic relationships remain uncertain due to an initial rapid radiation. The fossil record of Cornales is extensive...
Resource Type:: Dissertation
Full Text:: with throughout my time here. Firstly, I must thank my two primary advisors, Drs. Ruth Stockey and

Influence of site, soil, and inoculum density on dwarf bunt (Tilletia controversa Kühn) of winter wheat

Creator:: Clark, Deborah Ann, 1954-
Abstract:: Field microplot studies conducted over two seasons (1982-1984) evaluated the influence of four physically and chemically diverse soils collected from Pacific Northwest wheat fields on the incidence of dwarf bunt of winter wheat caused by Tilletia controversa Kuhn. These soils were placed at Flora and Pendleton, Oregon to determine the...
Resource Type:: Masters Thesis
Full Text:: review of the thesis. A special thanks to my major professor Dr. Robert L. Powelson without whose advice

Identification of Endogenous and Exogenous Pararetroviruses in Red Raspberry (Rubus idaeus L.) and Blueberry (Vaccinium corymbosum L.)

Creator:: Diaz Lara, Alfredo
Abstract:: The Pacific Northwest (Oregon and Washington in the United States and British Columbia in Canada) is one of the major producers of red raspberry (Rubus idaeus L.) and blueberry (Vaccinium corymbosum L.) in the world. The expansion of growing area with these crops has resulted in the emergence of new...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Robert R. Martin The Pacific Northwest (Oregon and Washington in the

Etiological studies on foot rot of wheat caused by Cercosporella herpotrichoides Fron.

Creator:: Byther, Ralph S.
Abstract:: Abundant conidial production occurs from colonized straws and plants infected with Cercosporella herpotrichoides Fron during the cool moist months of the growing season. Experiments were designed to study the survival, inoculum potential and competitive saprophytic ability of conidia in soil. Laboratory results indicated that cool moist soil favors the saprophytic...
Resource Type:: Dissertation
Full Text:: Robert L. Powelson Abundant conidial production occurs from colonized straws and plants infected with

Benthic algal communities of the Metolius River

Creator:: Sherman, Barbara Jane Powell, 1938-
Abstract:: Samples of benthic algae were collected from the Metolius River of central Oregon at two-week intervals between April 15, 1967 and March 9, 1968. Species of filamentous algae and diatoms present were recorded for every sampling station on each sampling date. Permanent mounts of diatom frustules were prepared. This sampling...
Resource Type:: Dissertation
Full Text:: appreciation to my major professor, Doctor H. K. Phinney, for his assistance and encourage- ment during the

ScholarsArchive@OSU

Impact of raspberry bushy dwarf virus, raspberry leaf mottle virus, and raspberry latent virus on plant growth and fruit crumbliness in red raspberry (Rubus idaeus L.) 'Meeker'

Seasonal pattern of secondary growth in stems of northern white spruce (Picea glauca (Moench) Voss)

Evolution and Phylogeny of Gnetophytes: Evidence From the Anatomically Preserved Seed Cone Protoephedrites Eamesii gen. et sp nov. and the Seeds of Several Bennettitalean Species

A Lower Cretaceous (Valanginian) seed cone provides the earliest fossil record for Picea (Pinaceae)

Pararaucaria carrii sp nov., anatomically preserved evidence for the conifer family cheirolepidiaceae in the northern hemisphere

Unearthing the Cretaceous Diversification of Cornales

Influence of site, soil, and inoculum density on dwarf bunt (Tilletia controversa Kühn) of winter wheat

Identification of Endogenous and Exogenous Pararetroviruses in Red Raspberry (Rubus idaeus L.) and Blueberry (Vaccinium corymbosum L.)

Etiological studies on foot rot of wheat caused by Cercosporella herpotrichoides Fron.

Benthic algal communities of the Metolius River

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