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Etiology and epiphytology of strawberry fruit rot caused by Botrytis cinerea pers.

Creator:: Powelson, R. L.
Resource Type:: Dissertation
Full Text:: . flhizopus rot, commonly called leak, is primarily a market disease (67, pp. 1-2) and 61, p. 21) but it

Response of Hannchen barley to the yellow dwarf virus disease as modified by nitrogen and phosphorus

Creator:: Lamptey, Paul Nii Lante
Resource Type:: Masters Thesis
Full Text:: Disease as Modified by Nitrogen and Phosphorus RES1DNSE OF IIANNCHEN BARLEY TO TilE YELlOW DWARF VIRUS

Races of bean rust, Uromyces phaseoli (Pers.) wint. var. phaseoli, in the Willamette Valley

Creator:: Hikida, Hideaki Robert
Resource Type:: Dissertation
Full Text:: the disease in the United States. A few years later Haistead (14, p. 26) and Whetze]. (32, p. 199

Factors affecting the identification of races of Uromyces phaseoli (Pers.) Wint. var. phaseoli

Creator:: Davison, Arlen Durant
Resource Type:: Dissertation
Full Text:: that the optimum day -night temperature for disease development was 27° and 21 °C. This is in

The effects of balsam woolly aphid infestations on wood anatomy of true firs

Creator:: Doerksen, Allan Harold
Abstract:: Three species of true firs in the Pacific Northwest--Abies gran-dis, grand fir; A. amabilis, Pacific silver fir; and A. lasiocarpa, subalpine fir--are severely damaged or killed by an imported insect pest, the balsam woolly aphid (Chermes (Adelges) piceae Ratz.), Infestations of this insect cause abnormalities in the wood and, in...
Resource Type:: Masters Thesis
Full Text:: been severely damaged and often killed by infestations of an irnported insect pest, the balsarn woolly

Isolation, purification and other studies of viruses mechanically transmitted from pear

Creator:: Nemec, Stanley, Jr.
Abstract:: Knowledge of the viruses which are mechanically transmitted from pear to herbaceous plants and the diseases they cause in pear is not complete. This thesis discusses the means used to mechanically transmit pear viruses, the properties of those viruses and their relationships with latent viruses of apple. Herbaceous plant virus...
Resource Type:: Dissertation
Full Text:: distinguishing different vi- ruses, filtering viruses from mixed cultures and locating disease free clones

Examination of necrotic fleck-diseased Lilium longiflorum

Creator:: Lyons, Alan Robert
Resource Type:: Masters Thesis
Full Text:: antisera and infected lily sap. More information on the necrotic fleck disease on lilies has been

Relation of boron to cherry rosette disease in Oregon, and the possible implication in Oregon, and the possible implication of a virus

Creator:: Bolwyn, Bart
Abstract:: A disease of sweet cherry (Prunus avium L.) known as "cherry rosette" has threatened production of cherries in Oregon. In 1961 this disease was observed in widely separated orchards. Rosette occurred in isolated trees or in spreading patterns, often from identified single trees or from one section of an orchard....
Resource Type:: Dissertation
Full Text:: Relation of boron to cherry rosette disease in Oregon, and

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:: of the disease in Oregon. The purpose of this research was to study temperature rela- tions and

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:: helps prevent spread and increase of the disease but, again, is not a completely effective control

ScholarsArchive@OSU

Etiology and epiphytology of strawberry fruit rot caused by Botrytis cinerea pers.

Response of Hannchen barley to the yellow dwarf virus disease as modified by nitrogen and phosphorus

Races of bean rust, Uromyces phaseoli (Pers.) wint. var. phaseoli, in the Willamette Valley

Factors affecting the identification of races of Uromyces phaseoli (Pers.) Wint. var. phaseoli

The effects of balsam woolly aphid infestations on wood anatomy of true firs

Isolation, purification and other studies of viruses mechanically transmitted from pear

Examination of necrotic fleck-diseased Lilium longiflorum

Relation of boron to cherry rosette disease in Oregon, and the possible implication in Oregon, and the possible implication of a virus

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

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

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