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 14 of 14 for “"Fiber quality"”.
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Factors Affecting Within-plant Variation of Cotton Fiber Quality and Yield
… bale’s lint price per pound is determined by its fiber quality profile. Cotton quality is defined by a set of standardized properties (length, strength, elongation, uniformity, color, trash, and micronaire) collected on every United States bale. Each cotton fiber is the remnant of a single cell …
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Effect of different production practices on the development of verticillium wilt and cotton fiber quality
… damaging disease capable of reducing yield and fiber quality of cotton (Gossypium hirsutum L.). To date, aspects of integrated disease management of Verticillium wilt on cotton yield and fiber quality are not entirely understood. In addition, limited information is available regarding the …
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Inheritance of fiber length mutants of upland cotton and relationships among lint yield, fiber quality, and economic indices
… has historically been limited by relatively poor fiber quality. Prior work at Texas Tech University identified two chemically induced mutants (TTU 202 and TTU 271) that appeared to carry at least one partially dominant gene that increased fiber length. In 1998, a series of eight crosses were made …
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Quantitative trait loci mapping for agronomic and fiber quality traits in Upland cotton (Gossypium hirsutum L.) using molecular markers
… L.) cultivars that combine high yield and fiber quality is a major challenge to the breeder. The understanding of the quantitative trait loci (QTL) contributing to agronomic and fiber quality traits offers an excellent route to solve this problem. A QTL analysis was carried out after an …
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Individual Experiments to Evaluate the Effects of Plant Population and Planting Date, Cultivar and Plant Growth Regulator Application, and Herbicide and Plant Growth Regulator Application on Cotton (Gossypium hirsutum L.) Growth and Development, Yield, and Fiber Quality
… L.) growth and development, lint yield, and fiber quality are influenced by many management decisions. Three field experiments examining the interaction of plant population and planting date, and cultivar or herbicide and plant growth regulator application on these parameters were conducted …
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An analysis of an alternative marketing system for cotton involving delayed ginning through various storage techniques
… one involving the effects of storage on the quality of the lint and/or seed. Varying opinions are held by authorities on the feasibility of storing seed cotton in the delta region of Missouri. The objectives of this inquiry were to determine (1) the effects of prolonged seed cotton storage on …
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Evaluation of Cover Crops, Conservation Tillage, and Nitrogen Management in Cotton Production in Southeastern Virginia
… the first week of bloom, cotton lint yield, and fiber quality parameters over two years. Legume mix cover crops resulted in greater N uptake, soil NO3-N during the growing season, and lint yields compared to LMR, rye, and fallow treatments over both study years. Soil compaction and lint yields …
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The mechanical testing of single nanofiber
Polymer nanofibers exhibit properties that make them a favorable material for the development of tissue engineering scaffolds, filtration devices, sensors, and high strength lightweight materials. Perfectly aligned PLLA Nanofibers were fabricated by an electrospinning technique under optimum …
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Effects of Thermomechanical Refining on Douglas fir Wood
Medium density fiberboard (MDF) production uses thermomechanically refined fiber processed under shear with high pressure steam. The industry evaluates fiber quality with visual and tactile inspection, emphasizing fiber dimensions, morphology, and bulk density. Considering wood reactivity, the …
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An Integrated Approach for Nitrogen Management in Upland Cotton Production
… 50%, which presents challenges of environmental quality. Studies were conducted across 4 states in the US Cotton Belt with the overall objective of evaluating strategies to reduce loss of N to the environment, increase N uptake and NUE. The first study had two objectives: 1) compare NH3 …
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Semi-conductor Core Optical Fibers and Fabrication Dependence of the Grain Structure
… and fabrication of semi-conductor core optical fibers was shown to be feasible and controllable. This was accomplished through the step sequence of fabrication and characterization of 4 fiber types, an experiment on controlling the grain length in the core and a simple model of the heat transfer …
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Molecular Basis of Quantitative Genetics Revealed by Cloning and Analysis of 474 Genes Controlling Fiber Length in Cotton
… billion USD. However, few genes controlling fiber quality and yield traits have been cloned and characterized to date. In this study, a large number of genes controlling the upper half mean length (UHML) of fibers were cloned using a newly-developed high-throughput gene and QTL cloning system …
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Developing Hybrid Cotton (Gossypium spp.) Using Honey Bees as Pollinators and Roundup Ready® Gene as Selection Trait
… (Gossypium spp.), the most important textile fiber crop in the United States (US), is cultivated in 17 states across the southern US. and a very important agricultural commodity for several states. The use of hybrids in the US has been limited due to seed cost production. The objective of this …
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Industrial hemp agronomic management for grain, fiber, and forage
… including the impact of tillage on seed and fiber production, optimal harvest time for seed yield and quality, the response of seed yield to nitrogen fertility rates, and the potential of hemp as a forage crop. A three-year study was conducted in Blacksburg and Orange of Virginia State to …