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Bionomics of the clover cyst nematode, Heterodera trifolii (Goffart, 1932) Oostenbrink, 1939 (Nematoda: Heteroderidae)

Creator:: Sen, Arun Kumar
Resource Type:: Masters Thesis
Full Text:: appreciation is expressed to Dr. Roy A. Young, Chairman of the Department of Botany, for his helpful

Fungitoxicity of silver salts

Creator:: Guilford, Roger Kirby
Abstract:: The demand for new fungicides to control plant diseases has led to experimentation with both previously used and newly developed fungicides. Silver, an older but little used fungicide, was selected for evaluation because of its high toxicity to microorganisms. Silver nitrate and a silver electrolytic cell were tested as potential...
Resource Type:: Masters Thesis
Full Text:: gratitude to Dr. Malcolm E. Corden and Dr. Roy A. Young for their guidance and encouragement offered

Latent viruses in apple varieties in Oregon nurseries

Creator:: Dimalla, Gerard George
Resource Type:: Masters Thesis
Full Text:: -245. 1962. 18. Shaw, J. W. and L. Southwick. A second report on some le- thai rootstock-scion

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:: this thesis is very diffi- cult. Dr. William W. Chilcote was the one who first stimulated an

Characterization of pectic enzymes produced by Fusarium oxysporum f. lycopersici

Creator:: Young, Robert J.
Resource Type:: Dissertation
Full Text:: during the course of this work. My appreciation is also extended to Dr. Roy A. Young for his assistance

The influence of host nutrition on the development of xiphinema americanum

Creator:: Nigh, Edward L.
Resource Type:: Dissertation
Full Text:: study and course of this inves- tigation. Special thanks is also expressed to Dr. Roy A. Young, Head

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

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:: Graduate Schoo Date thesis is presented Typed by Illa W. Atwood ACKNOWLEDGEMENTS The author

Enzymatic and respiratory studies on the role of cobalt in legumes

Creator:: De Hertogh, August
Resource Type:: Dissertation
Full Text:: . Appreciation is also expressed to his Graduate Committee, consisting of Doctors Roy A. Young, W.D. Loomis

Production of pectic enzymes by Verticillium albo-atrum

Creator:: McIntyre, Gary Allen
Abstract:: The main objectives of this study were to determine the effect of certain environmental conditions on the quantity of poly-galacturonase (PG) produced by V. albo-atrum, and to partially purify and characterize the PGs produced by this fungus in culture and in infected tomato plants. V. albo-atrum produced twenty times as...
Resource Type:: Dissertation
Full Text:: Pathology Dean of Graduate School Date thesis is presented /g/ 7.; Typed by Illa W. Atwood // J 7

ScholarsArchive@OSU

Bionomics of the clover cyst nematode, Heterodera trifolii (Goffart, 1932) Oostenbrink, 1939 (Nematoda: Heteroderidae)

Fungitoxicity of silver salts

Latent viruses in apple varieties in Oregon nurseries

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

Characterization of pectic enzymes produced by Fusarium oxysporum f. lycopersici

The influence of host nutrition on the development of xiphinema americanum

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

Enzymatic and respiratory studies on the role of cobalt in legumes

Production of pectic enzymes by Verticillium albo-atrum

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