Index Catalog // ScholarsArchive@OSU

Inheritance of resistance in some wheat introductions to selected races of bunt, Tilletia caries (DC) Tul and Tilletia foetida (Wallr) Liro

Creator:: Abdalla, Osman S.
Abstract:: Bunt or stinking smut is a major disease of wheat. In the U.S. common bunt, Tilletia caries (DC) Tul. and T. foetida (Wallr) Liro, is a threat to wheat production in the Pacific Northwest. Screening trials conducted by USDA Cereal Investigations Project in Oregon, from 1955-1980, revealed that a number...
Resource Type:: Dissertation
Full Text:: losses from this disease have led to the use of chemical seed treatments and resistant varieties. A

Assessment of resistance and inheritance to Barley Yellow Dwarf Virus disease (BYDV) in five wheat cultivars (Triticum aestivum L.)

Creator:: Tola, Jaime
Abstract:: Barley Yellow Dwarf Virus (BYDV) is a major disease of wheat. Unfortunately, unlike barley where the Yd2 gene provides adequate levels of resistance, the situation in wheat is more complex. This study was designed to provide information regarding: 1) evaluation of methods of measuring resistance among selected cultivars; 2) identification...
Resource Type:: Dissertation
Full Text:: : Assessment of Resistance and Inheritance to Barley Yellow Dwarf Virus Disease in Five Wheat Cultivars

Inheritance of Septoria leaf blotch resistance and the possible influence of heading date and plant height on the disease expression in a winter wheat cross

Creator:: Camacho Casas, Miguel Alfonso
Abstract:: Parental lines, Fi's and segregating populations (F₂, F₃ and BC's) including reciprocals were evaluated under field conditions to determine if genetic resistance per se exists for Septoria Leaf Blotch in a selected winter wheat cross. The experiment was conducted over a three year period with both natural infection and artificial...
Resource Type:: Dissertation
Full Text:: possible influence of heading date and plant height on the disease expression in a winter wheat cross AN

Inheritance of durable type disease resistance to leaf rust in wheat (Triticum aestivum L.em Thell)

Creator:: Das, Modan Kumar
Resource Type:: Dissertation
Full Text:: Among Components of Slow Rusting 17 Correlation Between Disease Development in the Field and Components

Marker development, genome mapping, and cloning of candidate disease resistance genes in sunflower, Helianthus annuus L

Creator:: Gedil, Melaku Ayele
Abstract:: The level of polymorphisms of many biochemical and DNA markers are low in cultivated sunflower (Helianthus annuus L.). The number of mapped public DNA markers is limited. Molecular markers have not been developed for the most important diseases of sunflower, such as downy mildew. The objectives of this study were...
Resource Type:: Dissertation
Full Text:: Development, Genome Mapping, and Cloning of Candidate Disease Resistance Genes in Sunflower, Helianthus

Mapping and introgression of disease resistance genes in barley (Hordeum vulgare L.)

Creator:: Toojinda, Theeryut
Abstract:: Molecular tools, coupled with unique germplasm stocks and rigorous phenotyping, are useful for developing a better understanding of qualitative and quantitative disease resistance genes in plants. The identification of molecular markers linked to all types of resistance genes provides opportunities for implementing a range of resistance breeding strategies, ranging from...
Resource Type:: Dissertation
Full Text:: better understanding of qualitative and quantitative disease resistance genes in plants. The

Optimizing virus detection in potato breeding populations

Creator:: Hane, Dan C.
Abstract:: Virus contamination in a potato breeding program can seriously disrupt the variety development process. Experiments were conducted from 1989 through 1993 to: evaluate the extent to which Potato Leafroll Virus (PLRV) and Potato Virus Y (PVY) can invade a breeding program, determine viral spread within hills and within individual tubers,...
Resource Type:: Dissertation
Full Text:: virus inoculum and favors disease spread within fields. However, aphid vectors can also carry viruses

Stripe rust resistance pyramids in barley

Creator:: Castro Tabo, Ariel Julio
Abstract:: Genetic resistance is the most appropriate way to control diseases in crop plants. Resistance can be described as qualitative (involving a gene-for-gene system) or quantitative (with continuous distribution of disease levels). The relationships between different types of resistance remain obscure, as does the genetics of quantitative traits. The use of...
Resource Type:: Dissertation
Full Text:: of complex traits. BSR is an important disease of barley. Using QTL mapping and logistic regression

Russet Burbank response to nitrogen fertilization and planting date

Creator:: Thornton, Robert Kim, 1957-
Abstract:: Studies addressed impacts of planting dates and variable N applications on numbers and size of Russet Burbank stems and stolon nodal position in relation to tuber growth and levels of hollow heart (HH) and brown center (BC). Low preplant N regimes produced larger tubers and final yields, and less HH...
Resource Type:: Dissertation

Quantitative resistance to Puccinia striiformis f. sp. hordei in barley near-isogenic (BISON) lines

Creator:: Richardson, Kelley L.
Abstract:: Quantitative resistance (QR) to disease is usually more durable than qualitative resistance, but its genetic basis is not well understood. We used the barley/barley stripe rust pathosystem as a model for the characterization of the QR phenotype and associated genomic regions. As an intermediate step in the preparation of near-isogenic...
Resource Type:: Dissertation
Full Text:: -isogenic (i- BISON) lines represent disease resistance QTL combined in one-, two-, and three- way

ScholarsArchive@OSU

Inheritance of resistance in some wheat introductions to selected races of bunt, Tilletia caries (DC) Tul and Tilletia foetida (Wallr) Liro

Assessment of resistance and inheritance to Barley Yellow Dwarf Virus disease (BYDV) in five wheat cultivars (Triticum aestivum L.)

Inheritance of Septoria leaf blotch resistance and the possible influence of heading date and plant height on the disease expression in a winter wheat cross

Inheritance of durable type disease resistance to leaf rust in wheat (Triticum aestivum L.em Thell)

Marker development, genome mapping, and cloning of candidate disease resistance genes in sunflower, Helianthus annuus L

Mapping and introgression of disease resistance genes in barley (Hordeum vulgare L.)

Optimizing virus detection in potato breeding populations

Stripe rust resistance pyramids in barley

Russet Burbank response to nitrogen fertilization and planting date

Quantitative resistance to Puccinia striiformis f. sp. hordei in barley near-isogenic (BISON) lines

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