Browsing NDSU Theses & Dissertations by Title
Now showing items 1942-1961 of 4708
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Genetic Dissection and Improvement of Fusarium Head Blight Resistance in Durum Wheat
(North Dakota State University, 2022)Fusarium Head Blight (FHB) is a destructive and complex fungal disease in wheat. Durum wheat, an economically important crop for pasta production, is under the severe impact of FHB. While numerous favorable QTL/genes have ... -
Genetic Dissection and Molecular Approaches of Root Morphology of Canola
(North Dakota State University, 2014)The inheritance of root vigor and days to flowering were studied in the F2 populations derived from winter- and spring-type crosses and their reciprocal crosses. Root vigor was found to be controlled by three genes whereas, ... -
Genetic Dissection of Tan Spot Resistance in Wheat
(North Dakota State University, 2020)Tan spot, caused by the necrotrophic fungal pathogen Pyrenophora tritici-repentis (Ptr), is a major foliar disease in wheat. QTL mapping and meta-QTL analysis are effective methods to understand genetic basis of tan spot ... -
Genetic Diversity and Genome-Wide Association Mapping of Agronomic, Disease Resistance, and Quality Traits in Barley Accessions from Ethiopia, Icarda, and the U.S.
(North Dakota State University, 2015)Plant breeding is a dynamic process that incorporates new germplasm to introduce genetic variation. Knowledge gained from genetic diversity studies and identification of potentially useful germplasm is critical for efficiently ... -
Genetic Diversity of the Guatemalan Climbing Bean Collections
(North Dakota State University, 2017)Since common bean is the most important legume crop for human consumption around the world, bean breeders are challenged to increase production of beans while facing new problems like climate change. Guatemalan climbing ... -
Genetic Investigation of Wild Oat with Acetyl-Coa Carboxylase Gene Sequence Variation
(North Dakota State University, 2013)Wild oat (Avena fatua) is a grass weed species that infests cropland. Common post-emergent herbicides for controlling wild oat are those that inhibit acetyl-CoA carboxylase (ACCase) and acetolactate synthase (ALS). Variation ... -
Genetic Mapping and Characterization of Net Blotch Dominant Resistance and Dominant Susceptibility Loci in Barley
(North Dakota State University, 2017)Net blotch is an economically important foliar disease of barley that occurs in two distinct forms: Spot Form Net blotch (SFNB) and Net Form Net Blotch (NFNB) caused by the necrotrophic fungal pathogens Pyrenophora teres ... -
Genetic Mapping of Quantitative Trait Loci for Resistance to Wheat Tan Spot Using Two Bi-Parental Populations
(North Dakota State University, 2015)Tan spot, caused by Pyrenophora tritici-repentis (Ptr), is an economically important disease on both common wheat (Triticum aestivum L.) and durum (T. turgidum L. ssp. durum). Genetics of resistance to tan spot is complicated ... -
Genetic Mapping of Resistance to Bacterial Leaf Streak in Triticale
(North Dakota State University, 2017)Bacterial leaf streak (BLS), caused by Xanthomonas translucens pv. undulosa (Xtu), is an important disease of wheat worldwide. The best way to control this disease in the field is the use of resistant cultivars. Although ... -
Genetic Markers, Cattle Disposition, and Stress Relative to Variations in Beef Tenderness
(North Dakota State University, 2012)The objective of this research was to evaluate the efficacy of genetic markers, disposition, and animal stress on variations in beef tenderness. Warner-Bratzler shear force (WBSF) values on 570 mixed breed heifers and ... -
Genetic Predictions Using Subjective Methods of Beef Cattle Temperament Evaluation, Genetic Association Between Beef Cattle Temperament and Production Traits, and Influence of Sire and Dam Temperament on Calf Performance
(North Dakota State University, 2021)Beef cattle temperament is not only important to handler safety and animal welfare but also found to be related to productivity and thereby, considered an economically important trait. Constraints to improve cattle temperament ... -
Genetic Search for Multi School Routing
(North Dakota State University, 2011)In genetic search for multi school routing, a set of commonly shared school buses and vans with capacity, travel speed and travel time limitations are used to service students from their pick up locations to their ... -
Genetic Structure of Leptosphaeria Maculans Populations in North Dakota and Identification of Genes Associated with Resistance to L. Maculans in Brassica Juncea
(North Dakota State University, 2013)Blackleg, caused by Leptosphaeria maculans is one of the most devastating diseases of canola (Brassica napus) in North Dakota. A study was conducted to characterize prevalence of pathogenicity groups (PG), identify population ... -
Genetic Studies of Winter Hardiness in Pisum sativum L.
(North Dakota State University, 2017)Pea (Pisum sativum L.) is valued for its high protein content and symbiotic nitrogen fixation. The use of pea as a green manure and cover crop in rotations has been increasing. Pea is grown as a winter crop but current ... -
Genetically Dissecting the Recessive Rpg4-Mediated Wheat Stem Rust Resistance Locus in Barley
(North Dakota State University, 2014)The rpg4-mediated resistance locus (RMRL) in barley provides recessive resistance against wheat stem rust (Puccinia graminis f. sp. tritici) races including the virulent race TTKSK (a.k.a Ug99). Three genes (HvAdfF3, Rpg5, ... -
Genetics and Quantitative Trait Loci Mapping of Septoria Tritici Blotch Resistance, Agronomic, and Quality Traits in Wheat
(North Dakota State University, 2013)Most breeding programs aim at developing superior germplasm and better cultivars that combine high yield, disease and pest resistance, and end-use quality to satisfy the requirements of the growers as well as industry. A ... -
Genetics of Drought Tolerance in Hard Red Spring Wheat in the Northern United States of America
(North Dakota State University, 2017)Drought affects about 50% of wheat (Triticum aestivum L.) globally and is a major threat for sustainable wheat production. This dissertation discusses three studies carried out to dissect drought tolerance in hard red ... -
Genetics of End-Use Quality Characteristics in Spring Wheat (Triticum Aestivum L.)
(North Dakota State University, 2017)Wheat (Triticum aestivum L.) is one of the most important crops consumed by humans around the world. Improving the end-use quality traits is one of the major objectives in wheat breeding programs. However, little is known ... -
Genetics of the Host-Pathogen Interaction in the Barley-Net Form Net Blotch System
(North Dakota State University, 2017)Pyrenophora teres f. teres is a fungal pathogen that causes barley net form net blotch. To evaluate the genetics of resistance in barley, a RIL population was developed using resistant barley lines CI5791 and Tifang and ... -
Genetics of Wheat Domestication and Septoria Nodorum Blotch Susceptibility in Wheat
(North Dakota State University, 2019)T. aestivum ssp. spelta Iranian type has long been thought to potentially be the direct non-free threshing hexaploid progenitor. I evaluated a RIL population derived from a cross between CS and Iranian spelta accession ...