Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 34 for “"Plant breeders"”.
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The commercial development and evaluation of a low erucic acid rapeseed variety
… production, it was also necessary to develop "in plant" procedures for oil extraction and refining. Special techniques were devised for grading the seed with respect to erucic acid levels and green seed content. Collaborative studies with several domestic oil processors were carried through to …
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Intellectual property, innovation and trade: strategies for the actualisation of agenda 2063 of the African Union
… technologies, particularly patents and plant breeders' rights. Innovation and trade are discussed in relation to their interdependency, acknowledging that intellectual property solutions alone are insufficient to achieve holistic results. Findings show that while intellectual property …
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The oat-crown rust pathosystem: an interaction of a plant, a pathogen, and time
Plant diseases are often described as the interaction of a plant, a pathogen, and the environment. For a disease to develop, there must be a susceptible plant, a virulent pathogen, and an environment amenable to disease. This concept is useful to explain the presence or absence of a disease, but …
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Learning from data: Plant breeding applications of machine learning
… new sources of data are being incorporated into plant breeding pipelines. Enormous amounts of data from field phenomics and genotyping technologies places data mining and analysis into a completely different level that is challenging from practical and theoretical standpoints. Intelligent …
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Sources and Inheritance of Resistance to Anthracnose Stalk Rot of Corn
… and how this resistance is inherited would aid plant breeders in breeding for resistance to anthracnose stalk rot. The objectives of these studies were to evaluate a wide array of corn germplasm for anthracnose stalk rot reaction, locate superior sources of resistance, determine how resistance …
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Validation of Loci Conferring Adult Plant Resistance to Powdery Mildew in Wheat Cultivar Massey and Identification of Diagnostic Molecular Markers
… with quantitative trait loci (QTL) such as adult-plant resistance (APR), have become popular with plant breeders because of their durability over a wide geographic range and time. Due to the quantitative nature of these genes, they are difficult to study requiring multiple assessments of disease …
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Genetic gain X management interaction in soybean: seeding rate effect
Plant breeders have increased genetic yield potential of soybean during the past century. The plant characteristics which soybean breeders have selected that have contributed most to those yield gains are not well understood. The hypothesis states that plants from recently released cultivars can …
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Controlling Tobacco Mosaic Virus in Tobacco through Resistance
… potentially new source of resistance. Currently, plant breeders must rely on the N gene. The N gene is used in the heterozygous state to help overcome poor agronomic effects associated with homozygous resistance; however, systemic movement of TMV is occasionally seen in resistant plants. A TMV …
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Omic-enabled Dectection and Studies of <i>Phytophthora capsici</i> in the Field
… is beneficial for both phytopathologists and plant breeders to identify the mechanisms used by the pathogen to cause infection and to develop resistant, commercial crops. To bridge the gap between laboratory and field knowledge, successful diagnosis and isolation of the pathogen are …
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Understanding Meiotic Recombination and Genomic Organisation of Plant Species
… engineering may provide effective tools for plant breeders to accelerate strain improvement. Despite low recombination rates and their evolutionary conserved function as kinetochore assembly loci, centromeres exhibit some of the highest levels of variation within eukaryotic genomes. Discovery …
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The Evaluation of Root System Architecture (RSA) As A New Breeding Target for Climate-Resilient Winter Wheat (Tritium aestivum L.)
… new breeding targets. There is potential for plant breeders to shift their focus to the root system architecture (RSA) as a new target for indirect selection, enabled by the phenotypic plasticity of winter wheat (Triticum sp.), one of the main staple agronomic crops. Our current limited …
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Maize and the Call of Place: Practicing Reciprocity through Local Crop Adaptation
… low-input farming systems via open-pollinated plant breeding as one such locally appropriate practice, a practice which has been foundational to agriculture for thousands of years and also has the potential to result in more sustainable ecological outcomes for local and regional food systems …
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ECOLOGICAL PERSPECTIVES ON HOST-PARASITE COEVOLUTION
… and the gene-for-gene (GFG) relationships in plants and their parasites. GFG systems are well-understood genetically and an important source of disease resistance for plant breeders. Therefore considerable effort has gone into studying their evolutionary dynamics in natural pathosystems and …
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Linking germination traits of oilseed rape (<i>Brassica napus</i> L.) to DNA markers
… important weed in arable rotations and a feral plant of field margins, soil dumps and roadsides. Seed persistence in the soil following induced secondary dormancy is thought to perpetuate these weed and feral populations. Potential variation between cultivars has been suggested in previous work …
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DNA diversity in prairie cordgrass (Spartina pectinata Link) populations indigenous to the United States
Plant diversity, more specifically genetic diversity, is important for the environment and essential as an economic and social resource. Genetic variation assessment has allowed for contributions to many fields, and enables plant breeders to select plant varieties that are more suited to the …
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The development of a South African legal framework relating to patentable inventions made by employees
… form of copyright, industrial design rights, and plant breeders' rights. In the absence of international guidance and a dearth of sources about the South African approach, an examination of the British and American approaches provides insight into divergent legal regulatory responses to the same …
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Integrating bioinformatic approaches to promote crop resilience
… genetic variation, long used by traditional plant breeders, holds great promise for adapting high performing agronomic lines to these stressors. Yet, efforts to bolster crop plant resilience using wild relatives have been hindered by time consuming efforts to develop genomic tools and/or …
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Screening Diverse Soybean Germplasm for Water-logging Tolerance
… from chlorosis and stunting to yield loss and plant death. Soybean response to, and the effects of, water-logging are dependent on the growth-stage of the plant at the initiation of water-logging. The objectives of this study were to screen a diverse soybean germplasm collection for …
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Ärftlighetsforskningens gränser : Individer och institutioner i framväxten av svensk genetik
… Mendelism was introduced as a methodology in plant breeding at the plant breeding station in Svalöf during the first decade of the 20th century by Herman Nilsson-Ehle. He was given a personal professorship in genetics at Lund University in 1917, mainly due to his success in improving some …
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Molecular marker-facilitated study of quantitative trait loci in a maize population
… Polymorphisms (RFLPs) have been explored by plant breeders and molecular biologists for their potential in plant breeding. In this study, RFLPs were used to locate chromosome regions for the following three categories of traits: resistance to second generation European corn borer (Ostrinia …
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