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Creator:: Zehsazian, Hassan
Abstract:: Verticillium wilt of hops in Oregon, caused by Verticillium dahliae Kleb., was first reported in 1956. Later, V. albo-atrum Reinke & Berth. was also isolated from infected hop plants, and thus both species of the fungus were shown to be the causal agents of the disease in Oregon. The purpose...
Resource Type:: Dissertation
Full Text:: Abstract approved: Redacted for Privacy Chester E. Horner Verticillium wilt of hops in Oregon, caused by

Creator:: Martinson, Charlie Anton
Resource Type:: Dissertation
Full Text:: ACKNOW LLEDGEMENTS The author wishes to thank Dr. C. E. Homer for guidance throughout this study and

Creator:: Highley, Terry L.
Abstract:: Verticillium dahliae Kleb. incites a vascular wilt disease of mints. Susceptible Mentha piperita L. , resistant M. crispa L., and intermediate hybrid 148 were used to study 1) the site of differential resistance and 2) the role of polygalacturonase (PG) in the disease syndrome. Many more V. dahliae propagules were...
Resource Type:: Dissertation
Full Text:: VERTICILLIUM DAHLIAE Abstract approved: Redacted for privacy C. E. Horner Verticillium dahliae Kleb

Creator:: Sherrod, Leslie Lynn, 1940-
Abstract:: Verticillium dahliae Kleb. causes a wilt disease of peppermint. Attempts to control the disease by soil fumigation, crop rotation, flaming of stubble, and deep plowing have met with only limited success. Development of resistant varieties through conventional breeding procedures is difficult because commercial peppermint is male-sterile. Several strains of commercial...
Resource Type:: Dissertation
Full Text:: . ) DEVELOPED BY IRRADIATION Redacted for Privacy Abstract approved: C. E. Horner Verticillium dahliae Kleb

Creator:: Melouk, Hassan Aly
Abstract:: The fungus Phoma menthae Strasser causes black lesions and cankers on stems and rhizomes of Mentha piperita L. The purpose of this thesis was to: 1) study the production of polygalacturonase (PG) and macerating enzymes (ME) by P. menthae in vivo and in vitro, 2) study the effects of phenolic...
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGMENT I wish to express my sincere thanks to Dr. Chester E. Horner for his helpful advice, for his

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