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 150 for “"plant material"”.
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The formulation and evaluation of rapid release tablets manufactured from Artemisia Afra plant material
… Artemisia afra that would contain an amount of plant material equivalent to that found in its traditional liquid dosage forms and that would meet conventional pharmaceutical standards. The second objective was to conduct a pilot study to obtain a preliminary profile of the bioavailability of …
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Microwave-Assisted Extraction for the Isolation of Trace Systemic Fungicides from Woody Plant Material
The extraction and recovery of trace organic material from semi-solid and solid matrices is often the slowest and most error-prone step of an analytical method. The conventional liquid extraction techniques for solids and semi-solids materials (Soxhlet) have two main disadvantages. The first, large …
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Defluoridation using modified mucilage from indigenous plant material in Vhembe District, Limpopo Province, South Africa
Access to clean and safe water is one of the Sustainable Development Goals. Unfortunately, it has been reported that groundwater, as another source of water has elevated fluoride levels exceeding the World Health Organisation permissible limit of 1.5 mg/L in some regions around the world. This …
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The development of Deoxyribonucleic Acid (DNA) based methods for the identification and authentication of medicinal plant material.
… new legislation is to prove the identity of the plant material in question. This is currently achieved via morphological and chemical methods, neither of which are ideal. A wide range of DNA based methods have been applied to this arena, standardisation is required to realise the potential of DNA …
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Factors influencing the use of plant material to develop a functional regional landscape in the Great Plains
This study shows how the natural landscape of a region--the Great Plains--evolved over a long period of time through natural processes and was modified in a relatively short period, approximately one hundred years, into a cultural landscape. With understanding and appreciation of the processes …
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The use of indigenous plant material by local authorities in amenity horticulture in the Cape Province of South Africa
… is to investigate the current use of indigenous plant material in Amenity Horticulture by local authorities in the Cape Province. It focuses on the built-up and street environments, and includes public gardens, pavements, road verges, recreational grounds, walkways and car parks which fall under …
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Preburnt and postburnt fynbos standing crop at Pella, Cape
… was estimated that the total preburnt P. repens plant material was 24 125,34 kg/ha dry mass and the total plant material for the other shrubs was 15 149 kg/ha dry mass. The 20 year-old postburnt standing crop was determined by cropping three 2m x 2m plots and felling three P. repens in a burnt …
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Toxicity and Teratogenicity of Conium Maculatum in Swine and Hamsters
… positively show that poison hemlock seed and plant material are both toxic and teratogenic in swine.
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Comparing Extraction Methods in Sample Preparation for the Quantification of Cannabinoids in Industrial Hemp
… The concentrations of each cannabinoid in the plant material determined via each of the extraction methods were compared using one-way ANOVA followed by Tukey's HSD (significant difference defined as p <0.05). All extraction methods evaluated returned different concentrations of total THC in …
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Use of carbon isotope and C/N geochemistry in reconstructing vegetation communities: a mid- to late- Holocene palaeoenvironmental investigation from Romney Marsh, Kent, UK
… in this study. Ninety three contemporary plant samples, 25 contemporary soil samples and 234 fossil peat samples were collected and analysed for their carbon isotope and C/N ratios. The results show that contemporary alder carr woodland plant material have more negative ς¹³C (-26%₀ to …
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An evaluation of wounding and hormone on the rooting of cutting : A thesis submitted in partial fulfilment of the requirements for the National Diploma in Horticulture in New Zealand
… different types of cuttings from a wide range of plant material has been the standard practice of many nurserymen throughout the world. This practice has been passed onto new generations of plant propagators as a successful technique for propagating many different species.
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Modeling the power requirements of a rotary feeding and cutting system
… data collected with the use of a custom-designed material properties test stand. The output of the analytical model fell within the 95% confidence interval of the measured power demand for each of the rotary feeding and cutting systems, and the analytical model was therefore deemed sufficiently …
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Indoor plants, identification and culture
… kit identifying seventy-three indoor plants, their cultural requirements, and uses was prepared. The kit consisted of seventy-eight slides of the plant material and a forty-fife minute taped narration. The botanical and common names of each plant along with its moisture, temperature, …
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Plant virus detection and diversity in a mixed tree fruit orchard determined through metagenomic-based analysis of honeybee (Apis mellifera) collected samples
… fruit orchards where profitability of individual plants can take years to achieve. Over time, fruit trees can accumulate various viruses, leading to complex mixed infections. Furthermore, emerging viruses can create epidemics causing significant losses. Effective monitoring approaches can reduce …
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Partitioning and Utilization of Apparent Photosynthate by Soybean (Glycine Max (L.) Merr.) Relative to Nitrogen Source: Nitrogen vs Nitrate
… respectively serving as sole source of nitrogen. Plants were evaluated on the basis of whole plant efficiency of apparent photosynthate utilization relative to nitrogen assimilation (expressed as the ratio of moles of carbon respired by the whole plant to the moles of nitrogen incoporated into …
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Rethinking Plant-Based Materials Production: Selective Growth of Tunable Materials Using Cell Culture Techniques
… cell culture techniques to selectively generate plant-based materials without whole plant cultivation and harvest. The proposed approach allows for localized, high-density production, elimination of energy-intensive harvest and hauling, and reduced processing, while offering inherent climate …
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The effects of exogenous application of abscisic acid and α,α'-dipyridyl on cold acclimation and physical characteristics of Pisum sativum 'Alaska' seedlings
… cold acclimation. Difficulties arise in studying plant material acclimated by exposure to low temperatures, because extraneous changes in the plant material occur that are unrelated to the development of cold tolerance. In order to determine whether cell wall changes are necessary for acclimation, …
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Phytochemical and toxocological studies of some Botswanan plants used in traditional medicine
… used in Botswana and in recent years a number of plant species have been submitted to the Botswana Police Forensic Science Laboratory by the Police as exhibits in cases of suspected poisoning by herbal medicine. The request would be for the forensic toxicologist to establish whether the plant …
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