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Rhizoctonia of the potato

Creator:: Corsaut, Jesse Harrison
Resource Type:: Masters Thesis
Full Text:: to a species of the genus Rosellinia." Shaw (ll8) describes as Cor ticium vagum, the perfect

Heat as a factor in germination of seeds of Ceanothus velutinus var. laevigatus T. & G.

Creator:: Gratkowski, H.
Resource Type:: Dissertation
Full Text:: Board of Forestry Nursery and Mr. D. Maus of the Board of Forestry who made a special effort in

Latent viruses in apple varieties in Oregon nurseries

Creator:: Dimalla, Gerard George
Resource Type:: Masters Thesis
Full Text:: (20). Later Shaw and Southwick (18) and Yerkes and Aldrich (22) reported extensive horticultural

The use of flowering crab apples for the detection of latent viruses in apples

Creator:: Reynolds, James Edward
Abstract:: Recent investigations indicate that several latent viruses of apples exist in common commercial apple stocks, but these viruses and their relationships are incompletely understood. This thesis describes investigations of crab apples as indicators of latent viruses of apples. Eighty-eight varieties and species of crab apples were tested as indicators of...
Resource Type:: Dissertation
Full Text:: THESIS OF the Ph. D. ir _!lgt Egtlgtsgf_(D;g,-;f ---(M;j;) -- Date thesis is presented

Synecology of the white-oak (Quercus garryana Douglas) woodlands of the Willamette Valley, Oregon

Creator:: Thilenius, John F., 1931-
Abstract:: Quercus garryana dominated plant communities are found in the interior coastal valleys and on foothills from southeastern Vancouver Island, British Columbia, south to San Francisco, California. They occur as savannas, intermixed with a variety of conifers, and in almost pure stands. The diversity of habitats occupied by the species and...
Resource Type:: Dissertation
Full Text:: Ph. D. in Plant Ecology (Name) (Degree) (Major) Date thesis is presented Title SYNECOLOGY OF THE

Physiological relationships between dwarf mistletoe and ponderosa pine

Creator:: McDowell, Larry Leon
Abstract:: A comparative study was made of Pinus ponderosa Laws, and Arceuthobium campylopodum Engelm. f . campylopodum to determine (1) whether or not the parasite or parasitized tissues accumulate abnormal concentrations of minerals, (2) whether or not there was evidence of a blockage of mineral translocation in the phloem because of...
Resource Type:: Dissertation
Full Text:: . (4) Distal samples, D, included bark between points l-2 cm and 15 cm outward from the fusiform

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

Creator:: Beckman, Kent Mardsen
Abstract:: Longevity and germination of seed of western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum) of ponderosa pine (Pinus ponderosa Laws.) was investigated to determine: 1) the influence of humidity and temperature on seed viability and deterioration during storage; 2) the physiology of seed dormancy; 3) the composition of seed reserve food...
Resource Type:: Dissertation
Full Text:: Ph. D. in Plant Pathology (Degree )(Name) (Major) Date thesis is pre "unr"d %/ /7i /91{ Title

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:: ) Date thesis is presented Ph. D. in Plant Ecology (Degree) (Major) Title AN ANALYSIS OF MONTANE

Fire history of the ponderosa pine forests of the Warm Springs Indian Reservation, Oregon

Creator:: Soeriaatmadja, Roehajat Emon, 1936-
Abstract:: Fire has played a prominent role in the development and character of the ponderosa pine forests in western North American. Its records are written in the scars of trees that have survived the fire. Careful studies of these fire-scars may be used as a means of reconstructing the fire history...
Resource Type:: Dissertation
Full Text:: for the Ph. D. in Plant Ecology (Name) (Degree) (Major) Date thesis is presented August 11, 1965

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:: AN ABSTRACT OF THE THESIS OF Milton Lee Dean for the Ph. D

ScholarsArchive@OSU

Rhizoctonia of the potato

Heat as a factor in germination of seeds of Ceanothus velutinus var. laevigatus T. & G.

Latent viruses in apple varieties in Oregon nurseries

The use of flowering crab apples for the detection of latent viruses in apples

Synecology of the white-oak (Quercus garryana Douglas) woodlands of the Willamette Valley, Oregon

Physiological relationships between dwarf mistletoe and ponderosa pine

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

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

Fire history of the ponderosa pine forests of the Warm Springs Indian Reservation, Oregon

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

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