Index Catalog // ScholarsArchive@OSU

Factors influencing development and control of Phytophthora fragariae Hickman, the cause of red stele disease of strawberries

Creator:: Houck, Laurie G., 1928-
Resource Type:: Dissertation
Full Text:: Phytophthora fragariae hickman, the cause of red stele disease of strawberries FACTORS INFLUENCING

Physiologic specialization and etiology of red stele disease, Phytophthora fragariae Hickman, of strawberries, and attempts at control

Creator:: Wooley, Paul Henry
Resource Type:: Dissertation
Full Text:: ) first reported the presence of the "red stele" disease of strawberries in Western Oregon. Since 1941

Purification of strawberry polyphenol oxidase and its role in anthocyanin degradation

Creator:: Wesche-Ebeling, Pedro Alfredo E.
Abstract:: Polyphenol oxidase (PPO) from strawberries was purified, partially characterized, and used to study its role in the degradation of anthocyanin pigments. The extraction method included the use of a buffered solution containing the phenolic binders Polyclar AT and Amberlite XAD-4. Addition of Triton X-100 resulted in an increase of the...
Resource Type:: Dissertation
Full Text:: Ripe Strawberry PPO 104 II. 3 Purification of the Polyphenol Oxidase from Unripe Strawberries

The effect of sawdust on the up-take of nitrogen, phosphorus, and potassium by strawberry plants

Creator:: Shih, Shui-Ho
Resource Type:: Dissertation
Full Text:: , Phosphorus, and Potassium by Strawberry Plants TB& llF&CT OF SAWDUST ON THB UP-tm 01 NITROlEI1 PBOSPHGIUJS

Development and use of molecular tools in Fragaria

Creator:: Njuguna, Wambui
Abstract:: This dissertation describes the application and development of molecular tools that have great potential for use in studying variation in strawberry germplasm. The first study evaluated 91 microsatellite (simple sequence repeat, SSR) markers for transferability in 22 Fragaria species and their utility in fingerprinting octoploid strawberries. Out of the transferable...
Resource Type:: Dissertation
Full Text:: used in the study. Testing of two molecular markers linked to the red stele and anthracnose

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

Creator:: Powelson, R. L.
Resource Type:: Dissertation
Full Text:: destructive disease of strawberries in the southern Mississippi valley in 1922 and 1923. In 1958, Felix

The influence of increased base saturation and the chloride ion on Fragaria ananassa, Bailey

Creator:: Lyons, Calvin G.
Abstract:: Research was carried out to determine the influence of increasing the percentage base saturation of the soil on the yield of the commercial strawberry. It was found that the effect of increasing the bases in the soils was directly related to the original percentage base saturation. When this original value...
Resource Type:: Dissertation
Full Text:: Bernstein (1958) determined the tolerance of strawberries to salts. The strawberry plants used were

Response of strawberry plants to manganese nutrition

Creator:: Sabharwal, Sudarshan Lal
Abstract:: The effects of manganese nutrition on growth, mineral composition, carbohydrate and nitrogen metabolism, IAA oxidase and phenols of 'Northwest' strawberry plants are reported. Growth and mineral composition response were investigated in sand culture and Hoagland's solution 2 modified to contain 0.0, 0.5, 2.5, 12.5, 25.0, 62.5 and 125.0 ppm substrate...
Resource Type:: Dissertation
Full Text:: ^/^^ /^// (Major) //^ /jj&te) Title: RESPONSE OF STRAWBERRY PLANTS TO MANGANESE NUTRITION Abstract

Studies of the crinkle disease of strawberry with special reference to the inheritance of resistance

Creator:: Weaver, LeRoy Eugene
Resource Type:: Dissertation
Full Text:: Studies of the crinkle disease of strawberry with special

Molecular characterization of criniviruses and ilarviruses infecting strawberry

Creator:: Tzanetakis, Ioannis E.
Abstract:: Pallidosis is a disease of strawberry identified in 1957 with an unknown etiology. Two previously uncharacterized viruses in strawberry, Strawberry pallidosis associated virus (SPaV) and Beet pseudo-yellows virus (BPYV), have been found associated with disease symptoms. The complete nucleotide sequence of both viruses was determined and molecular detection protocols developed....
Resource Type:: Dissertation
Full Text:: significance of the disease and their role in strawberry decline. The development of fast, sensitive and

Honey Bees and Apple Trees : Hood River, Oregon as a Case Study for the Creation of the Honey Bee Pollination Industry

Creator:: Kellar, Brenda M.
Abstract:: The use of honey bees to pollinate apple orchards seems natural, even inevitable. This dissertation examines the relationship of beekeeping and apple growing in Hood River, Oregon in the mid-nineteenth to the mid-twentieth centuries, as a case study in the development of commercial pollination service. Within this time period the...
Resource Type:: Dissertation
Full Text:: 3.1 Apples Arrive in the Pacific Northwest …………………………………71 3.2 The Land of the Big Red Apples

Ringspot and bean mosaic viruses from gladiolus

Creator:: Snow, Gordon Franklin
Resource Type:: Dissertation
Full Text:: . Trifoliate leaf of Red Mexican U.I. 3 from plant shown lii in figure S infected with gladiolus bean mosaic

Interrelationships among changes in flavor and aroma, and composition of stored strawberry juice concentrate

Creator:: Lundahl, David S.
Abstract:: Sensory evaluation and instrumental methods were applied to the evaluation of strawberry juice concentrate (68°Brix) stored at 20°C which had been produced both commercially (C-SJC) and in a pilot plant (SJC). Sensory evaluation included taste and aroma ratings by intensity scaling and time-intensity of taste, and visual colorimetry by matching...
Resource Type:: Dissertation
Full Text:: storage. LITERATURE REVIEW Composition of Strawberry Fruit and Juice Strawberries, including the

Integration of Evolutionary Theory and Genomics to Understand Processes Involved in Host Adaptation and Divergence in Phytophthora Plant Pathogens

Creator:: Tabima, Javier F.
Abstract:: Modern plant pathology benefits from integrating methods and concepts from evolutionary biology. For example, evolutionary concepts are used to identify and examine species boundaries of plant pathogens, recognize processes underlying pathogen biogeography, identify traits that characterize emerging species, and discover new molecular interactions that originate under processes of selection. In...
Resource Type:: Dissertation
Full Text:: important soil borne pathogen to the strawberry industry as the causal agent of red stele disease of

The Primary Disease Gradient of Wheat Stripe Rust (Puccinia striiformis f. sp. tritici) Across Spatial Scales

Creator:: Farber, Daniel
Abstract:: Wheat stripe rust (WSR), also called yellow rust of wheat (Tricitum spp.), causal agent Puccinia striiformis f.sp. tritici (Pst), is a foliar disease of major economic importance on wheat, especially grown in temperate locations. WSR causes major losses of wheat yield, estimated at nearly $ 1 billion per year, and...
Resource Type:: Dissertation
Full Text:: Title: The Primary Disease Gradient of Wheat Stripe Rust (Puccinia striiformis f.sp. tritici) Across

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

The etiology of bacterial soft rot of onions and identification of the causal organisms

Creator:: Irwin, Roger Deane
Abstract:: Observations of bacterial soft rot of onions in the Lake Labish area in the Willamette Valley of western Oregon showed that two distinct symptom types occur during the growing season. The most prevalent symptom type appears in infected plants as a wilting and chlorosis of two or more lower leaves...
Resource Type:: Dissertation
Full Text:: between weather and disease suggests that outbreaks of bacterial soft rot can be forecast by occurrence

Suppression of take-all [Gaeumannomyces graminis (Sacc.) Arx & Olivier var. tritici Walker] of wheat (Triticum aestivum L.) by banded ammonium and chloride fertilizers

Creator:: Halsey, Mark Evan
Resource Type:: Dissertation
Full Text:: cultures were from disease-free roots. Two main colony morphological types of fluorescent pseudomonads

Survival and pathogenicity of Phytophthora cinnamomi Rands in forest soils

Creator:: Kuhlman, Elmer George, 1934-
Resource Type:: Dissertation
Full Text:: chookrad;ìte Co:rd ttee / / Red acted for privacy Dean of Qrathate School Date thesla la presented

Occurrence, behavior and control of Verticillium albo-atrum Reinke and Berth in small fruits

Creator:: Pratt, Michael John
Resource Type:: Dissertation
Full Text:: raspberry diseases 41 Strawberry diseases 43 FACTORS INFLUENCING THE INCIDENCE OF TKE DISEASE 44 Crop

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