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Filtering by: Advisor Horner, Chester E. Remove constraint Advisor: Horner, Chester E. Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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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
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

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ACKNOWLEDGMENT I wish to extend my sincere thanks to Dr. Chester E. Horner for suggesting the problem, for
Inactivation of Verticillium dahliae in peppermint stems by propane gas flaming

Creator:

McIntyre, John Lee

Abstract:

The fungus Verticillium dahliae Kleb. causes a wilt disease of peppermint, Mentha pipertita L. Propane flaming of peppermint stubble is widely used to control Verticillium wilt in the Willamette Valley of Oregon, but little is known about the temperature required for effective control of the fungus. The purposes of this...

Resource Type:

Masters Thesis

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Privacy C. E. Horner The fungus Verticillium dahliae Kleb. causes a wilt disease of peppermint, Mentha

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Academic Affiliation

Botany3
Botany and Plant Pathology1

Advisor

Horner, Chester E.3
Horner, C. E.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1960 to 1971

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Creator

Mcintyre, John Lee1
Melouk, Hassan Aly1
Skoe, Donald Edward1
Zehsazian, Hassan1

Date

Date range begin – Date range end

Current results range from 1960 to 1971

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Decade

1970-19791
1960-19693

Degree Field

Botany4

Degree Level

Master's4

Degree Name

Master of Science (M.S.)[remove]4

Language

English [eng]4

Non-Academic Affiliation

Oregon State University. Graduate School4

Peer Reviewed

No4

Resource Type

Masters Thesis4

Rights Statement

Copyright Not Evaluated4

Subject

Peppermint -- Diseases and pests2
Downy mildew diseases1
Fungi in agriculture1
Hops -- Diseases and pests1
Phoma menthae1
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