Browsing Masters Degrees (Botany) by Title
Now showing items 14-33 of 130
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Bark in traditional healthcare in KwaZulu-Natal, South Africa : usage, authentication and sustainability.
(2002)Healthcare in South Africa is polarised between western and traditional African systems of therapy. The latter is consulted by the majority of the population and therefore plays an integral role in the delivery of healthcare ... -
Biochemical and biophysical indicators of chilling tolerance in some species of Eucalyptus.
(1993)Although Eucalyptus species are indigenous to Australia, they have been successfully cultivated in South Africa, where they are mainly used in the mining and paper industries. With the explosion in these industries it ... -
Biochemical and ultrastructural changes associated with chilling injury in soybean seeds during imbibition.
(1996)Biochemical and ultrastructural changes associated with chilling injury (CI) in soybean seeds imbibed at 5°C and 25°C were investigated. Soybean seed germination appeared to be affected by chilling temperatures and initial ... -
Biological nitrogen fixation (acetylene reduction) associated with blue-green algal communities in the Mgeni estuary mangrove swamp.
(1987)Nitrogen fixation of blue-green algae associated with Avicennia marina (Forssk.) Vierh. pneumatophores and wet and dry surface sediments were investigated in the Mgeni Estuary mangrove swamp by means of the acetylene reduction ... -
Bioprospecting the flora of southern Africa : optimising plant selections.
(2005)Focused procedures which streamline and optimise plant prioritisation and selection in bioprospecting have the potential to save both time and resources. A variety of semiquantitative techniques were assessed for their ... -
Character variation and a cladistic analysis of the genus Lachenalia Jacq.f. ex Murray (Hyacinthaceae:Massonieae)
(2005)Morphological variation and a cladistic analysis of the large, endemic Southern African genus Lachenalia Jacq.f. ex Murray (Hyacinthaceae: Massonieae) is presented. Its close taxonomic relationship with the small endemic ... -
A comparative study of the plant ecology of three estuaries : Mgeni, Mhlanga and Mdloti.
(1986)The vegetation of the Mgeni Estuary, Mhlanga Estuary and Mdloti Estuary was analysed according to the Braun-Blanquet phytosociological method using quadrats of 4m2 and 25m2 in area placed subjectively and the Point-Centred ... -
Comparision of two promoters driving transgene expression in water-stressed sugarcane.
(1999)For the expression of transgenes in plant cells, appropriate promoter sequences have to be introduced upstream of the gene to ensure efficient transcription. Tissue- or signal-responsive promoters are in high demand in ... -
Competitive interactions between savanna trees.
(2011)Savannas are socio-economically important ecosystems, which support high floral and faunal diversity. This biome covers large areas of Africa, Australia, South America, India and parts of North America, and is comprised ... -
Consequences of habitat fragmentation for the pollination of wildflowers in moist upland grasslands of KwaZulu-Natal.
(2002)Large areas of moist upland grassland in KwaZulu-Natal are severely fragmented due to large scale farming of exotic trees. The aims of this thesis were to determine whether habitat fragmentation of these grasslands has ... -
A contribution to knowledge of the genus Hypoxis L. (Hypoxidaceae) in Natal, South Africa.
(1976)Abstract available in PDF. -
Cryopreservation of Pinus patula Scheide et Deppe embryogenic tissue.
(1999)Embryogenic tissue of Pinus patula Scheide et Deppe was initiated from immature green female cones during the months of November 1996 to February 1997 and December 1997 to January 1998. Tissue was maintained on MSG3 ... -
The development of in vitro rooting systems for cold-tolerant Eucalyptus grandis x nitens clones and the assessment of the hydraulic efficiency of roots produced by in vitro vs. cutting propagation.
(1999)Hybrid clones of the fast-growing Eucalyptus grandis and cold-tolerant E. nitens (GN clones) have been identified by the South African Forestry Industry as being highly suitable for plantations in cold-dry marginal areas. ... -
Development of micropropagation protocols for selected indigenous plant species..
(1995)The herbal medicine trade is thriving in KwaZulu Natal with an ever-increasing number of people harvesting and trading in indigenous plants, especially those species with medicinal and/or magical properties. The number of ... -
Development of novel antibacterial and antiviral transgene vectors and techniques for their application and analysis in sugarcane.
(2002)Sugarcane is challenged by a number of phytopathogenic bacteria and viruses that are best managed by the development of resistant varieties. Genetic engineering is a promising strategy in such breeding efforts, as it ... -
The development of protocols for the diagnosis and micropropagation of cold-tolerant Eucalyptus cultivars.
(1996)In South Africa, Eucalyptus trees are used for many processed wood products (e.g. paper) and in the mining industry. Priorities in Eucalyptus breeding programmes include selection of varieties that are fast growers, insect ... -
The development of regeneration and transformation systems for Eucalyptus spp.
(1994)In South Africa, Eucalyptus breeding programmes are aimed at the selection of fastgrowing varieties, with appropriate wood characteristics and/or resistance to pests and diseases. However, the slow growth rate, long ... -
The development of short-to-medium and long-term germplasm storage protocols for Eucalyptus spp.
(1998)Eucalyptus trees are a significant source of fuelwood, timber and raw material for the paper and pulp industry. In South Africa, Eucalyptus grandis and its hybrids are in high demand due to their fast growth and suitability ... -
Differing responses of embryonic axes of four recalcitrant-seeded species from temperate and tropical provenances to the procedures involved in cryopreservation.
(2016)Abstract available in PDF file. -
The effect of elevated atmospheric CO2 on the growth and physiology of Chromolaena odorata.
(2008)Rising atmospheric CO2 (Ca) concentrations have generated concern among scientists, mainly because of CO2’s role as a greenhouse gas and its influence on plant growth and development. Previous research has suggested that ...