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Streptomycin absorption and translocation by hops (Humulus lupulus L.) and effects of streptomycin on the hop downy mildew disease

Creator:: Maier, Charles Robert
Resource Type:: Dissertation
Full Text:: the authw 1a deeply gratetul to Dr. c. E. Horner, who sug gested the .P""Oblem, and whos• advice and

The effect of soil moisture and temperature on survival of Verticillium microsclerotia

Creator:: Nadakavukaren, Mathew Joseph
Resource Type:: Dissertation
Full Text:: . Chester E. Horner, for suggest ing this problem and for his invaluable advice and coun sel throughout

Resistance in hops to systemic rootstock and crown infection by downy mildew

Creator:: Skoe, Donald Edward
Resource Type:: Masters Thesis
Full Text:: Gladys Averette A CKNO WLEDC- MENT S Sincere appreciation .s extendod to Dr. C. E. Torn.er for

Influence of host and non-host plants upon populations of Verticillium dahliae in soil

Creator:: Lacy, Melvyn Leroy
Abstract:: The incitant of Verticillium wilt of peppermint (Verticillium dahliae Kleb.) causes disease symptoms only in the genera Mentha (the mints) and Monarda. This fungus is unable to grow saprophytically through natural soil. V. dahliae survives in soil by colonizing and forming microsclerotia in susceptible plants, living root tissue of many...
Resource Type:: Dissertation
Full Text:: wish to extend rny sincerest thanks to Dr. C, E. Horner for guidance and encouragerrrent throughout

An improved selective medium for the isolation of Verticillium dahliae Kleb

Creator:: Zehsazian, Hassan
Abstract:: Sodium polypectate (SPP) was added to an ethanol-streptomycin agar (ESA) medium to determine if it would provide a selective substrate for the growth of Verticillium dahliae and for isolation of the fungus from soil and plant tissues in the presence of saprophytic fungi. Sodium polypectate improved greatly the formation and...
Resource Type:: Masters Thesis
Full Text:: extend my sincerest thanks to Dr. C. E. Horner for guidance throughout this study and for his aid in the

A disease of peppermint caused by Phoma menthae

Creator:: Melouk, Hassan Aly
Abstract:: Phoma menthae Strasser causes black lesions and cankers on stems and rhizomes of Mentha piperita L. The fungus was isolated from infected rhizomes and stems. The optimum temperature for growth of the fungus in culture was between 20-25°C; little growth occurred at 5°C, and no growth occurred at 35.5°C. Among...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGMENT I wish to extend my sincere thanks to Dr. Chester E. Horner for suggesting the problem, for

Verticillium wilt of hops : pathogenicity, host range, and temperature relations of the causal agents

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

Chemical control of hop downy mildew (Pseudoperonospora humuli) and tolerance by Phytophthora isolates to the systemic fungicide metalaxyl

Creator:: Hunger, Robert Marvin
Resource Type:: Dissertation
Full Text:: privacy Dr. Chester E. Horner Four systemic fungicides (metalaxyl, M 9834, propamocarb, and efosite

Comparison of pectic enzymes in resistant and susceptible mints infected by Verticillium dahliae

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

Nature of resistance to Verticillium dahliae Kleb. in strains of peppermint (Mentha piperita L.) developed by irradiation

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

ScholarsArchive@OSU

Streptomycin absorption and translocation by hops (Humulus lupulus L.) and effects of streptomycin on the hop downy mildew disease

The effect of soil moisture and temperature on survival of Verticillium microsclerotia

Resistance in hops to systemic rootstock and crown infection by downy mildew

Influence of host and non-host plants upon populations of Verticillium dahliae in soil

An improved selective medium for the isolation of Verticillium dahliae Kleb

A disease of peppermint caused by Phoma menthae

Verticillium wilt of hops : pathogenicity, host range, and temperature relations of the causal agents

Chemical control of hop downy mildew (Pseudoperonospora humuli) and tolerance by Phytophthora isolates to the systemic fungicide metalaxyl

Comparison of pectic enzymes in resistant and susceptible mints infected by Verticillium dahliae

Nature of resistance to Verticillium dahliae Kleb. in strains of peppermint (Mentha piperita L.) developed by irradiation

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