Index Catalog // ScholarsArchive@OSU

Enhanced efficiency nitrogen fertilizers for nitrogen management in the Columbia Basin, Oregon

Creator:: Holcomb, Jess Charles
Abstract:: Ammonia (NH₃) volatilization can result in a substantial amount of surface applied nitrogen (N) being lost into the atmosphere, making it an environmental pollutant as well as reducing plant-available N. However, N can also be easily lost from the soil through leaching, and nitrous oxide (NO₂). Enhanced efficiency N fertilizers...
Resource Type:: Masters Thesis
Full Text:: ammonium standards in de- ionized water and in 0.013835 M oxalic acid……………………………………………………… 111 6.2

Quantitative trait loci influencing free-threshing habit and spike morphology in wheat (Triticum aestivum L.)

Creator:: Jantasuriyarat, Chatchawan
Abstract:: Spike morphology characteristics and the free-threshing habit of wheat have been extensively investigated because of their evolutionary significance and practical importance. Several genetic systems that govern these traits have been reported. Some studies suggest polygenic inheritance while others have identified major genes. This study was conducted to identify and locate...
Resource Type:: Masters Thesis
Full Text:: specific restriction enzymes (Vos et al. 1995). AFLP markers have recently become widely used for genetic

Nitrogen management and variety selection for dryland production of hard red winter wheat in northeastern Oregon

Creator:: Jepsen, Daniel R.
Abstract:: Proper nitrogen (N) management and variety selection are important for profitable hard red winter (HRW) wheat production in the dryland growing regions of northeastern Oregon. In these dryland systems, N management for grain yield and grain protein concentration (GPC) is challenging due to climatic and year-to-year variation in production environments....
Resource Type:: Masters Thesis
Full Text:: stand density at maturity (Spiertz and Vos, 1983). Aborted tillers do not contribute to yield

Estimating the dry matter production, nitrogen requirements, and yield of organic farm-grown potatoes

Creator:: McQueen, John Paul Gainer
Abstract:: As part of a participatory research project, where farmers and Oregon State University researchers collaborated, aspects of potato (Solanum tuberosum L.) growing systems were studied. It was determined through conversations with the farmers that quantification of certain growth parameters of potato was lacking, including dry matter accumulation, crop nitrogen (N)...
Resource Type:: Masters Thesis
Full Text:: and 60 kg N ha-1 in 1983 and 1984 in 100 days after emergence. Vos (1997) growing ‘Prominent’ and

Elicitors: A Novel Tool for Controlling the Colorado Potato Beetle Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae)

Creator:: Butcher, Alexander M.
Abstract:: Over the last several decades, potato production has increased globally as it has been recognized as an important component to improving food security. However, potato production has been continuously challenged by pests. Current pest management practices rely heavily on chemical pesticides. Unfortunately, the overuse of pesticides can be harmful to...
Resource Type:: Masters Thesis
Full Text:: temperatures reach above 10°C (de Kort 1990). Individuals will either mate at their overwintering sites or

Simple sequence repeat marker development and fingerprinting in Cuphea lanceolata Ait. and C. viscosissima Jacq

Creator:: Karmarkar, Vidyadhar M.
Abstract:: Microsatellites or simple sequence repeats (SSRs) are highthroughput sequence based DNA markers that have been exploited as tools for measuring genetic distance and diversity in evolutionary studies, protection of intellectual property, genetic resource conservation management, cultivar identification and molecular breeding of crop plants. We isolated and sequenced 1095 clones from...
Resource Type:: Masters Thesis
Full Text:: Clelland, 1990), amplified fragment length polymorphism, AFLP (Vos et al., 1995) and 7 simple sequence

Nuclear and chloroplast diversity of Pacific Northwest wheat (Triticum aestivum) breeding germplasm

Creator:: Edwards, Melanie Love
Abstract:: Wheat breeders must effectively maintain and manage existing genetic diversity in order to continue the development of superior genotypes. It is therefore fundamental that the genetic relationships and diversity within the germplasm pools be thoroughly characterized and understood. Recently, DNA-based markers have provided powerful tools for genetic diversity analysis. This...
Resource Type:: Masters Thesis
Full Text:: this gain may be due to de novo variation, epistasis, and! or epigenetic effects. The variation might

Exploring Vitamin B9 Diversity for the Nutritional Improvement of Potato

Creator:: Robinson, Bruce R.
Abstract:: The cultivated potato, Solanum tuberosum L., has been one of the world’s most important food crops for more than 190 years and may become even more important to global food security in the coming 20 - 30 years. One of the world's largest growing health concerns is not just the...
Resource Type:: Masters Thesis
Full Text:: .; Van Deynze, A.; De Jong, W.; Veilleux, R.E.; Jansky, S.H.; Bethke, P., et al. Retrospective view of

Detection of the Burkholderia cepacia complex in soil environments

Creator:: Miller, Suzanne C. McKenzie
Abstract:: Burkholderia cepacia complex (Bcc) bacteria reside in soil, plant rhizospheres, and water, but the prevalence of Bcc in outdoor environments is not clear. In this study, we sampled a variety of soil and rhizosphere environments with which people may have contact: playgrounds, athletic fields, parks, hiking trails, residential yards and...
Resource Type:: Masters Thesis

Testing the effectiveness of barley stripe rust resistance QTL detected in Mexico and the USA against a possible new race in Peru and mapping of genes conferring resistance to leaf rust and mildew in the same population

Creator:: Rossi, Carlos
Abstract:: Barley is the fourth most important cereal crop in the world because of its broad adaptation, its utility as a feedstock and for human food, and the superior properties of barley malt for brewing. Three of the most important foliar diseases of barley, on a worldwide level are: barley leaf...
Resource Type:: Masters Thesis
Full Text:: University, Corvallis, Oregon, USA 2 Instituto Nacional de Investigaciones Agrarias (INIA), Colonia, Uruguay

ScholarsArchive@OSU

Enhanced efficiency nitrogen fertilizers for nitrogen management in the Columbia Basin, Oregon

Quantitative trait loci influencing free-threshing habit and spike morphology in wheat (Triticum aestivum L.)

Nitrogen management and variety selection for dryland production of hard red winter wheat in northeastern Oregon

Estimating the dry matter production, nitrogen requirements, and yield of organic farm-grown potatoes

Elicitors: A Novel Tool for Controlling the Colorado Potato Beetle Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae)

Simple sequence repeat marker development and fingerprinting in Cuphea lanceolata Ait. and C. viscosissima Jacq

Nuclear and chloroplast diversity of Pacific Northwest wheat (Triticum aestivum) breeding germplasm

Exploring Vitamin B9 Diversity for the Nutritional Improvement of Potato

Detection of the Burkholderia cepacia complex in soil environments

Testing the effectiveness of barley stripe rust resistance QTL detected in Mexico and the USA against a possible new race in Peru and mapping of genes conferring resistance to leaf rust and mildew in the same population

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