Index Catalog // ScholarsArchive@OSU

Yield loss assessment in nonprotected winter wheat varieties (Triticum aestivum, L. em Thell)

Creator:: Camacho Casas, Miguel Alfonso
Abstract:: The effects of some soil- and foliar-borne biotic factors on grain yield and the components of yield were evaluated using five winter wheat varieties sown at two dates. Within each planting date, varieties were grown under four different combinations of two soil treatments (fumigation and nonfumigation) and two foliar treatments...
Resource Type:: Masters Thesis
Full Text:: , disease resistance is the most economic means of protection. In the Pacific Northwest there are many soil

Genetic relationships between pea seedborne mosaic virus resistance and horticultural characteristics, powdery mildew, enation mosaic virus and red clover vein mosaic virus resistance in Pisum sativum L.

Creator:: Sewall, Cathy Hampshire
Resource Type:: Masters Thesis
Full Text:: LITERATURE CITED 72 LIST OF TABLES Table Page 1. Disease resistance and horticultural charac

Inheritance of resistance to common bunt races T-23 and L-16 and association of bunt resistance with selected agronomic characters in a hybrid of Hohenheimer x Stephens wheat

Creator:: Kanbertay, Mesut
Resource Type:: Masters Thesis
Full Text:: Inheritance of resistance to common bunt races T-23 and L

Studies on resistance of rice to Sogatodes oryzicola (Muir) and a parasitoid, Haplogonatopus sp., in Costa Rica

Creator:: Alvarez B., Francisco
Abstract:: Twenty-one rice cultivars were evaluated to determine the difference between populations of Sogatodes oryzicola (Muir) (Homoptera: Delphacidae) in Costa Rica and Colombia, Survival, mortality and population development of S. oryzicola on five selected cultivars was used to determine levels of plant resistance. The importance and potential of the parasitoid-predator Haplogonatopus...
Resource Type:: Masters Thesis
Full Text:: : Studies on Resistance of Rice to Sogatodes oryzicola (Muir) and a Parasitoid, Haplogonatopus sp., in

Expression of secondary metabolites following manipulations of the C:N ratio in spotted knapweed, Centaurea maculosa Lam.

Creator:: Brodhagen, Marion L.
Abstract:: Spotted knapweed, Centaurea maculosa Lam. (Compositae) is an extremely successful introduced weed species in the northwestern United States. Multiple factors may be responsible for its success, including chemical defense. Two different types of putative chemical defense agents are the focus of this thesis. The first is a bitter-tasting sesquiterpene lactone,...
Resource Type:: Masters Thesis
Full Text:: discourage loss of carbohydrate to herbivory or disease. 1.1.2. Economic and environmental impact C

Screening Phaseolus cultivars for resistance to white mold disease caused by Sclerotinia sclerotiorum (Lib.) de Bary

Creator:: Kuehn, Michael
Resource Type:: Masters Thesis
Full Text:: identify and separate disease avoidance mechanisms affecting field tests from the disease resistance indi

Inheritance of resistance to halo blight, Pseudomonas phaseolicola (Burk.) in Phaseolus vulgaris L

Creator:: Hong, Lorraine Luo
Resource Type:: Masters Thesis
Full Text:: . Environmental Factors and Resistance Burkholder (2) considered halo blight a low-temperature disease. He

Bionomics of the clover cyst nematode, Heterodera trifolii (Goffart, 1932) Oostenbrink, 1939 (Nematoda: Heteroderidae)

Creator:: Sen, Arun Kumar
Resource Type:: Masters Thesis
Full Text:: the first plant parasitic nematode and described the first plant disease caused by a nematode

Inheritance of resistance to the lentil strain of pea seedborne mosaic virus in Pisum sativum L.

Creator:: Kasimor, Kathryn T.
Abstract:: The inheritance mode of pea-resistance to the Lentil Strain of Pea Seedborne Mosaic Virus (PSbMV-L) was studied. In addition, commercial pea cultivars, Plant Introduction (P.I.) lines and Oregon State University (OSU) breeding lines were tested for susceptibility to this virus. These lines were also tested for their reaction to Bean...
Resource Type:: Masters Thesis
Full Text:: obtained for Fl, F2, and F3 progeny and selected backcrosses. Fl tests indicated that resistance was

Controlling damage by ring-necked pheasants to sprouting corn in southwestern Idaho

Creator:: Helmich, Bryan T.
Abstract:: During the springs of 1988 1989, experiments were conducted to determine effective methods of controlling damage by ring-necked pheasants (Phasianus coichicus) to sprouting corn in southwestern Idaho. Plot evaluations (1988) failed to demonstrate the ability of Miller Hot Sauce Animal Repellent, Isotox Seed Treater (F), provision of alternate food, and...
Resource Type:: Masters Thesis
Full Text:: .) number of 23 corn sprouts/100 m of row removed, damaged, disturbed and undisturbed by ring-necked

ScholarsArchive@OSU

Yield loss assessment in nonprotected winter wheat varieties (Triticum aestivum, L. em Thell)

Genetic relationships between pea seedborne mosaic virus resistance and horticultural characteristics, powdery mildew, enation mosaic virus and red clover vein mosaic virus resistance in Pisum sativum L.

Inheritance of resistance to common bunt races T-23 and L-16 and association of bunt resistance with selected agronomic characters in a hybrid of Hohenheimer x Stephens wheat

Studies on resistance of rice to Sogatodes oryzicola (Muir) and a parasitoid, Haplogonatopus sp., in Costa Rica

Expression of secondary metabolites following manipulations of the C:N ratio in spotted knapweed, Centaurea maculosa Lam.

Screening Phaseolus cultivars for resistance to white mold disease caused by Sclerotinia sclerotiorum (Lib.) de Bary

Inheritance of resistance to halo blight, Pseudomonas phaseolicola (Burk.) in Phaseolus vulgaris L

Bionomics of the clover cyst nematode, Heterodera trifolii (Goffart, 1932) Oostenbrink, 1939 (Nematoda: Heteroderidae)

Inheritance of resistance to the lentil strain of pea seedborne mosaic virus in Pisum sativum L.

Controlling damage by ring-necked pheasants to sprouting corn in southwestern Idaho

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