Index Catalog // ScholarsArchive@OSU

Host and Pathogen Genetics in the Sharp Eyespot Disease of Wheat

Creator:: Liu, Jiang
Abstract:: Wheat sharp eyespot (SES), caused by the soil-borne fungus Rhizoctonia cerealis is a common stem disease of wheat globally. The disease caused a severe and extensive epidemic throughout the Willamette Valley of Oregon in 2014 and has remained one of the most important wheat diseases in this region. However, litte...
Resource Type:: Dissertation
Full Text:: :_______________________________________________________________ Christopher C. Mundt Wheat sharp eyespot (SES), caused by the soil-borne fungus

Sensitivity of wheat genotypes to a toxic fraction produced by Cephalosporium gramineum and correlation with disease susceptibility

Creator:: Rahman, Mahfuzur
Abstract:: Cephalosporium stripe, caused by the soil-borne ascomycete Cephalosporium gramineum, is becoming an increasingly important disease of winter wheat (Triticum aestivum) in several areas of the world, especially where stubble mulch is practiced to maintain soil moisture and prevent erosion. As cultural control of the disease is infeasible and no fungicides...
Resource Type:: Masters Thesis
Full Text:: ramineum and Correlation with Disease Susceptibility Abstract approved: Christopher C. Mundt Thorhas J

Genetic diversity and interactions in populations of plants and pathogens

Creator:: Knott, Elizabeth A.
Abstract:: Two experiments involving interactions between wheat (Triticum aesitivium L.) cultivars and rust pathogens were investigated. One experiment evaluated the aggressiveness (measured by infection efficiency and latent period) of populations of Puccinia recondita Rob. when inoculated on the cultivar they were isolated from, their "own" cultivar, and when inoculated onto other...
Resource Type:: Masters Thesis
Full Text:: Interactions in Populations of Plants and Pathogens. Redacted for privacy Abstract approved: Christopher C

Modeling disease gradients and understanding the spread of wheat stripe rust using simulated epidemics

Creator:: Sackett, Kathryn E.
Abstract:: Primary disease gradients of wheat stripe rust, caused by the aerially dispersed fungal pathogen Puccinia striformis, were measured in Madras and Hermiston, OR in the springs of 2002 and 2003. Disease foci were created by inoculating a 1.52m x 1.52m area in each of three replicate field plots (6.1m wide...
Resource Type:: Masters Thesis
Full Text:: approved: Christopher C. Mundt Primary disease gradients of wheat stripe rust, caused by the aerially

Interactive effects of stripe rust and plant competition in heterogeneous wheat populations

Creator:: Finckh, Maria Renate
Abstract:: Disease has been implied as an important selective force acting in plant populations. This study was conducted to determine the effects of stripe rust (Puccinia striiformis) on the population dynamics of wheat (Triticum aestivum) cultivar mixtures. Five wheat cultivars were grown in pure stands and all possible mixtures at three...
Resource Type:: Dissertation

Effects of host resistance on Mycosphaerella graminicola populations

Creator:: Cowger, Christina
Abstract:: Mycosphaerella graminicola (anamorph Septoria tritici) causes Septoria tritici blotch, a globally important disease of winter wheat. Resistance and pathogenicity generally vary quantitatively. The pathogen reproduces both sexually and asexually, and the pathogen population is highly genetically variable. Several unresolved questions about the epidemiology of this pathosystem are addressed by this...
Resource Type:: Dissertation
Full Text:: Resistance on Mycosphaerella graminicola Populations. Abstract approved: Christopher C. Mundt

Interrelationship of wheat cultivar mixtures, stripe rust and yield

Creator:: Akanda, Shamsul I.
Resource Type:: Dissertation
Full Text:: , Stripe Rust and Yield Abstract approved: Christopher C. Mundt Four club wheat (Triticum aestivum

Cephalosporium stripe of wheat : seedling-based resistance screening and pathogenic variability

Creator:: Cowger, Christina
Abstract:: Cephalosporium stripe of wheat (Triticum aestivum), caused by the soilborne fungus Cephalosporium gramineum, results in significant yield reductions in dryland winter wheat crops of the U.S. Pacific Northwest. The development of resistant cultivars offers the best hope for disease control. Breeding for resistance is hampered by the long trial times...
Resource Type:: Masters Thesis
Full Text:: : Christopher C. Mundt Cephalosporium stripe of wheat (Triticum aestivum), caused by the soilborne fungus

Effects of intercropping beans with maize on angular leaf spot and rust of beans

Creator:: Boudreau, Mark Alan, 1958-
Abstract:: Experiments were performed to determine the nature of maize influence on bean disease in additive-type intercrops. Overall effects of intercrops on angular leaf spot (caused by Phaeoisariopsis griseola) in Kenya indicated >23% reductions (P<0.05) in area under the disease progress curve (AUDPC) in two of three season-site combinations. Fertilization tended...
Resource Type:: Dissertation
Full Text:: Christopher C. Mundt Experiments were performed to determine the nature of maize influence on bean disease

The effect of diversity and spatial arrangement on biomass of agricultural cultivars and native plant species

Creator:: Worster, Catherine Anne
Abstract:: Species and cultivar combinations have been relatively well studied, though little is known about the influence of spatial arrangement on agricultural or native plant mixtures. The effect of spatial pattern on mixtures was explored in three experiments. In the first two, agricultural and native plants were planted in two-way mixtures...
Resource Type:: Masters Thesis
Full Text:: approved: Christopher C. Mundt Species and cultivar combinations have been relatively well studied

ScholarsArchive@OSU

Host and Pathogen Genetics in the Sharp Eyespot Disease of Wheat

Sensitivity of wheat genotypes to a toxic fraction produced by Cephalosporium gramineum and correlation with disease susceptibility

Genetic diversity and interactions in populations of plants and pathogens

Modeling disease gradients and understanding the spread of wheat stripe rust using simulated epidemics

Interactive effects of stripe rust and plant competition in heterogeneous wheat populations

Effects of host resistance on Mycosphaerella graminicola populations

Interrelationship of wheat cultivar mixtures, stripe rust and yield

Cephalosporium stripe of wheat : seedling-based resistance screening and pathogenic variability

Effects of intercropping beans with maize on angular leaf spot and rust of beans

The effect of diversity and spatial arrangement on biomass of agricultural cultivars and native plant species

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