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Browsing Theses and Dissertations (Plant Production and Soil Science) by Type "Dissertation"
Now showing items 1-20 of 244
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Allelopathic effect of the weed Cyperus esculentus on the growth of young Pinus patula plantations (University of Pretoria, 2001)Please read the abstract in the 00front part of this document.
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(University of Pretoria, 2007-08-27)Silverleaf nightshade (Solanum elaeagnifolium), a perennial broadleaf weed, has become a serious pest in many semi-arid areas of the world. Control of silverleaf nightshade is confounded by its ability to produce thousands ...
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(University of Pretoria, 2007-04-04)The alien invader plant Parthenium hysterophorus is a Category 1 weed in South Africa, where it poses a serious threat to indigenous vegetation in particular, and to biodiversity in general. In addition to its competitive ...
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(University of Pretoria, 2013)Conyza bonariensis, flaxleaf fleabane, is a major weed threat on cultivated and non-cultivated lands, gardens, roadsides and waste places. The weed in South Africa is believed to have originated from South America, and the ...
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(University of Pretoria, 2006-10-07)Silverleaf nightshade is a serious problem weed in many semi-arid regions of the world. Although many research efforts have been devoted to this weed’s interference with crop species, possible chemical interference ...
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(University of Pretoria, 2009-11-10)It has been suggested that the Category 1 weed, Campuloclinium macrocephalum (Less) D.C has allelopathic potential, which would, at least partially, explain its apparent success as an alien plant in South Africa. Studies ...
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(University of Pretoria, 2001)Please read the abstract in the dissertation
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(University of Pretoria, 2023)Despite its discovery over a century ago, Mycobacterium tuberculosis (Mtb) is a rapidly advancing pathogen which has placed an immense disease burden on global populations and to this day, the fallout from this disease ...
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(University of Pretoria, 2019)The discovery of antibiotics has been one of the major breakthroughs in the history of medicine for the treatment of microbe-related infections. Soil-borne microorganisms have been known to potentially produce clinically ...
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(University of Pretoria, 2019-08)Medicinal plants play a crucial role in the healthcare treatment of many infections and also serve as the basis for the synthesis of novel chemotherapeutic agents. Included in these plants is the Tabernaemontana genus ...
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The antimycobacterial activity and potential herb-drug interactions of selected South African plants (University of Pretoria, 2024-02-01)Tuberculosis (TB) has plagued humanity for centuries, ranking as one of the leading causes of death globally. It surpasses even HIV/AIDS in mortality caused by a single infectious biological agent. Since 1997, the World ...
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(University of Pretoria, 2023)Ethnopharmacological relevance: The Vhavenda use Tabernaemontana elegans Stapf. (Apocynaceae) to treat malaria and gonorrhoea. Materials and methods: The methanol crude extract of the stem bark was subjected to column ...
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(University of Pretoria, 2024-01-30)Cancer is one of the most lethal diseases worldwide, with millions of people being diagnosed each year, it is estimated that 1 in 6 deaths can be attributed to this disease. In 2020 approximately 10 million deaths occurred ...
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(University of Pretoria, 2023)Mycobacterium tuberculosis (M. tuberculosis) is a bacterium that causes the highly infectious disease, Tuberculosis (TB). During the 19th and early 20th centuries TB was known as the “white plague” due to the characteristic ...
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(University of Pretoria, 2012)Most of the fields planted with clonal tea in Malawi are deficient in micronutrients. This was evident in leaf analysis data collected in 2007 from 170 mature clonal tea fields of some of the tea estates in Malawi, which ...
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(University of Pretoria, 2013)The potato (Solanum tuberosum L.) crop serves as a staple food worldwide and is capable of reducing the world’s food shortages because unlike cereals and other agricultural crops, it is less affected by prices in the ...
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(University of Pretoria, 2023-07-25)The segregation of black Africans to access and participate in forestry was purely a development plan imposed by the apartheid government. Initially, this started as a conservation route, where special indigenous trees ...
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(University of Pretoria, 2016)Maize (Zea mays L) is a staple food crop grown in South Africa by both large scale commercial and smallholder farmers. During the 2013/14 cropping season maize occupied about 2.6 million hectares of the total 3.9 million ...
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(University of Pretoria, 2019-12)Fusarium spp. cause significant losses in yield and quality in the maize (Zea mays L.) industry. Fusarium pathogens affect the development of the plant tissue and the quality of the grain. The mycotoxins produced by ...
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(University of Pretoria, 2018)Plant growth-promoting rhizobacteria (PGPR) are bacteria that colonize the rhizosphere and/or roots in the presence of other soil microflora and have growth promotion activity and/or biocontrol activity. Plant growth-promoting ...
Now showing items 1-20 of 244