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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 21 for “"breeding methods"”.
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A Comparison of Various Breeding Methods for Improving Persistency and Disease Resistance in Red Clover
Made available in DSpace on 2014-12-04T20:17:04Z (GMT). No. of bitstreams: 1 6100165.pdf: 9553074 bytes, checksum: 54e743645d3ab7b0eb2f02deb6004aea (MD5) Previous issue date: 1960
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Investigating flavor quality and variances in F2 cucumber progenies using instrumental analysis
… flavor (texture, taste, and aroma) through plant breeding methods. This study aimed to identify cucumber flavor compositions in 165 F2 progenies and compare the progenies to their parent fruits (W17633 and 9930q2-1) and a first-generation cucumber (F1-1). Analyses were conducted using a texture …
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Mesoscale Ensemble Prediction of Mid-Latitude Cyclones
… mid-latitude cyclone prediction. The BGM and PO breeding methods were found to be far superior to the MC method in generation of a set of initial conditions for ensemble prediction. A notable characteristic of the model physics perturbation ensemble is its ability to alleviate the problems caused …
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Using spontaneous haploid genome doubling to access favorable alleles in exotic maize (Zea mays L.) germplasm
<p>Maize (Zea mays L.) breeding contributed to significant yield gains in the past decades. However, it has been accompanied by narrowing its germplasm base. Breeding from exotic maize germplasm, such as BS39, provides a unique opportunity for broadening the genetic base of US Corn Belt germplasm. …
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PCR-based Synthesis of Codon Optimized cry2Aa Gene for Production of Shoot and Fruit Borer (Leucinodes orbonalis) Resistant Eggplant (Solanum melongena L.) Cultivars
… use of pesticides as well as the conventional breeding methods have been ineffective in controlling the borer so there is a need for Integrated Pest Management (IPM) strategies for its control. Bacillus thuringiensis (Bt) is known to produce a variety of insecticidal crystal proteins toxic to …
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Mitigation of Inorganic Arsenic in Rice
… Existing agronomic, growth management and breeding methods of arsenic mitigation are not only expensive and scale limited but also suffer from the diversity of soil and growing conditions around the globe preclude any clear answer. Two chapters in this thesis show that effective treatments …
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Preliminary quantitative trait loci analysis for biomass traits in Miscanthus sinensis
… clone precludes crop improvement via traditional breeding methods. An alternative strategy to introduce genetic variability and advance performance is through the breeding of M. sinensis, one of the progenitor species of M. x giganteus. The obligatory outcrossing nature of Miscanthus prohibits the …
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Tissue culture and transformation of introducing genes useful for pest management in rice
… to Liberty herbicide and Rhizoctonia solani. Methods were developed to screen transgenic plants for resistance to hygromycin B and Liberty herbicide using dip and cut in toxicant solutions. Five of 99 plants in the field test and 51 of 55 plants in greenhouse test were highly resistant to …
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Maximizing corn yield potential through proper rate, placement, and timing of nitrogen fertility
… the improvement in these cultivars with better breeding methods and genetics in combination with crop management factors has led to ever-greater corn yields. These crop management factors include: hybrid, planting population, nitrogen (N) fertility, additional nutrient fertility, and foliar …
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Trade implications of gene-edited wheat under different regulatory scenarios
… demand for food is still a challenge. New breeding techniques (NBTs) or gene editing are rapidly emerging as alternative and sustainable methods of improving methods wheat traits. Although these innovative breeding methods contribute to higher yields and develop crops with valuable traits, …
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Genomic Selection and Genome-Wide Association Study in Populus trichocarpa and Pinus taeda
Forest tree breeding methods rank among the most efficient ways to increase productivity and quality of forests. With the advent of high-throughput genotyping technology, genome-enabled breeding has started to gain importance and may overcome some weaknesses of traditional tree breeding. Genomic …
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Genetic variation within the Icelandic cattle breed: assessment using microsatellites and analysis of single nucleotide polymorphisms in the Leptin and DGAT1 genes
… domestic breeds is a crucial factor in all breeding work. It is a prerequisite for future breeding progress and is used in research and development of breeding methods at the molecular level. The present study estimates genetic variation within the Icelandic cattle breed using two …
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Molecular approaches to increasing resistance of wheat (Triticum aestivum L.) towards two insect pests; Cereal aphid (Sitobion avenae F.) and Wheat bulb fly (Delia coarctata Fallen).
… these defence proteins by using traditional breeding methods and/or modern biotechnological tools is discussed.
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Genomic selection for glume blotch resistance and milling and baking quality traits in soft red winter wheat
… disease resistance are key objectives in a breeding program. Selection for milling and baking quality is critical for the acceptance of new wheat varieties to end users - millers and bakers. Fungal pathogens present a significant biotic threat to the quality and quantity of the wheat crop …
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Confirming QTL for seed yield from exotic soybean germplasm
… by intermating elite cultivars. This breeding strategy, combined with the limited N.A. genetic base, has resulted in a very narrow gene pool. Plant introductions (PI) have been used to expand the N.A. genetic base with limited success when conventional breeding methods have been used. …
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Genetic diversity and candidate gene association analysis for growth in the South African Yellowtail (Seriola lalandi)
… for the market. Conventional selective breeding strategies are not as effective as they are supposed to be, leading to a loss of genetic diversity. This is further compounded by skewed broodstock success and inconsistencies regarding phenotypic performance and size between families. …
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The effects of Low α-Linolenic fatty acid Soybean Oil and Mid Oleic acid Soybean Oil on the growth of Her-2/neu and Fatty acid synthase over-expressing human breast cancer (SK-Br3) cells
… altered fatty acid (FA) composition by selective breeding methods. Currently, low α- linolenic acid soybean oil (LLSO) and low α- linolenic acid and mid oleic acid soybean oil (LLMOSO) are available FA modified SOs in the market. The consumption of FA modified SOs has been increased because the …
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Characterisation of Flavonoid Composition and Glycosylating Enzymes in Sweet Cherry and Apple Fruit
… apple fruits or other commercial crops through breeding approaches, ultimately enhancing their health benefits. Further in Chapter 4, we reported on the biochemical characterisation of two more such enzymes in Prunus avium L., which are poorly characterized particularly in this species. The two …
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