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 77 for “"Biomass yield"”.
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Genetic control of flowering time and biomass yield in sorghum
… for grain, forage, sugar, and most recently biomass, though there has been very little genetic improvement for biomass yield. Most biomass sorghums are very late flowering to maximize vegetative growth. In order to understand the genetic control of flowering time and biomass yield in sorghum, …
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Sensor development for estimation of biomass yield applied to Miscanthus Giganteus
Precision Agriculture technologies such as yield monitoring have been available for traditional field crops for decades. However, there are currently none available for energy crops such as Miscanthus Giganteus (MxG), switch grass, and sugar cane. The availability of yield monitors would allow …
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Biomass yield potential and nitrogen use efficiency of the photoperiod-sensitive energy sorghum
Recently introduced high-yield energy sorghums (Sorghum bicolor L. Moench) have great potential to be dedicated lignocellulosic biofuel feedstocks. Nitrogen (N), the key nutrient for plant growth and development, is the primary input and cost for an energy sorghum production system. In order to …
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Biomass yield and nutritive value of Stylosanthes scabra accessions as forage source for Goats
… 11604, were consistently superior in terms of biomass yield over the three-year period (2012 to 2014). Thus, from the biomass production point of view, these three accessions are recommended for future use as legume forage. Promising accessions identified in terms of adaptability and productive …
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Adaptability, Biomass Yield, and Phytoremediation of Arundo donax L. on marginal lands: salt, dry and lead-contaminated soils
… may be used to enhance sites unsuitable for biomass production, restoring the ecosystem services and providing valuable feedstocks to biorefineries, in a phytoremediation process. Among the perennial species for energy purpose, Arundo donax L. could be a suitable species for marginal lands …
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Nitrogen Rate and Source Effects on Biomass Yield of Teff Grown for Livestock Feed in the Mid-Atlantic Region
… (N) fertilization rate and source on the yield, nutritive value, and nitrate content of teff. Nitrogen (N) was applied at 0, 45, 90, and 135 kg plant available N ha-1 as a single application of either ammonium nitrate (AN) or broiler litter (BL) at seeding. The experimental design was a …
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Effects of Biosolids Application and Harvest Frequency on Switchgrass Yield, Feedstock Quality, and Theoretical Ethanol Yield
… However, the effects of biosolids application on biomass yield, nitrogen (N) concentration, feedstock quality and theoretical ethanol yield (TEY) are rarely reported in the literature. The objectives of this research were: 1) to compare the effects of biosolids application on biomass yield, N …
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Productivity and ecosystem services from purpose-grown energy crops
… There is significant uncertainty regarding the biomass yield, environmental and climate outcomes associated with scaling up production of perennial bioenergy crops to meet these targets. This dissertation aims to investigate four key areas: (i) assess the impact of Nitrogen (N) on the long-term …
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Development of prairie cordgrass (spartina pectinata link) as a dedicated bioenergy crop
… optimizing the agronomic practices related to biomass production. As one of the dominant native grass species (Poaceae), prairie cordgrass (Spartina pectinata Link) showed potential as a dedicated bioenergy crop on marginal land. However, prairie cordgrass biomass-production research has been …
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Heterosis in a broad range of alfalfa germplasm
… European falcata germplasm displayed superior biomass yield and heterosis compared to Asian falcata germplasm. The superior European performance was likely due to genetic differentiation between European and Asian material. In addition climate of origin variable selection on parental falcata …
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Perennial grasses as sustainable bioenergy crops for marginal lands
… crops for renewable biofuels. Since an ideal biomass crop should not compete with food crops for land use, biomass crop production on marginal lands can reduce land-use competition between energy and food crops. Chapter 1 of this dissertation provides an introduction and rationale of the …
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Screening of indigenous forage legumes as potential fodder crops and protein source for livestock in Central Namibia
… protein source for livestock. The growth rate, biomass yield and nutritional value of four indigenous legumes (Otoptera burchellii, Vigna lobatifolia, Crotalaria argyraea and Cullen tomentosum) and four improved legumes (Lablab purpureus, Medicago sativa, Canavalia ensiformis and Vigna …
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Entomological considerations for domestication of pennycress, Thlaspi arvense, as a cash cover crop
… impact of artificial defoliation on pennycress biomass, yield components, and oil and protein content. The experiments, which tested various defoliation levels and timings, revealed that significant reductions in biomass, yield and protein content occurred, particularly during critical growth …
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Nitrogen fertilization, yield components, and species selection of perennial grass bioenergy cropping systems across eastern North America
… crops that have the ability to produce large yields on relatively low-quality land or with lower inputs than traditional annual row crops such as maize. Grasses can be directly combusted to produce heat and/or electricity or can be processed to produce cellulosic ethanol similarly to corn …
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Discovery of New Protein-DNA and Protein-Protein Interactions Associated With Wood Development in Populus trichocarpa
… One such alternative energy source is to use the biomass derived from forest trees to fulfill the need for a renewable alternative fuel. Through increased understanding and optimization of regulatory mechanisms that control wood development the potential exists to increase biomass yield. …
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Dissolution and Biokinetics of PCL in Denitrification Systems
… compared PCL and methanol in terms of biomass yield and maximum specific growth rate (μmax), showing comparable performance between the two. The combined results provide mechanistic understanding of PCL dissolution and biological utilization, confirming its promise as a reliable and …
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Metabolic engineering and modelling of Escherichia coli for the production of succinate
… are quite strict. Such a process has to obtain a yield of 0.88 g/g, a rate between 1.8 and 2.5 g/l/h and a titer around 80 g/l. None of the available (reported) processes reach either of these values. In most cases the rate and the titer are still a problem. To optimise succinate production via …
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Relationship between Aspalathus linearis (Burm. F.) R. Dahlgren (rooibos) growth and soil moisture in a glasshouse and in the DSSAT-CSM crop model
… the CROPGRO model in DSSAT to simulate the shoot biomass yield of rooibos, using the rooibos CROPGRO model, 3) to investigate the effect of rooibos growth on soil moisture, and 4) to determine the effect of different levels of mulching and irrigation on rooibos yield and soil moisture. Some of the …
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Yield response to nitrogen fertilization and harvest timing on a mature Miscanthus x giganteus stand
… renewable energy crop in the U.S. due to great biomass production and low input requirements. This research focuses on the effects of nitrogen fertilization rates and harvest timings on yields and quality of a four-year-old crop of M. x giganteus. Research plots in Champaign, IL were harvested …
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