Articles by Author: Michelle Viljoen

Search results for Michelle Viljoen

We found 90 results for you
  1. Retrospective clinical analysis of adverse drug reactions associated with antiretroviral therapy in Tlokwe district, South Africa

    Retrospective clinical analysis of adverse drug reactions associated with antiretroviral therapy in Tlokwe district, South Africa

    Item type: Journal Article • Journal: South African Family Practice
    Background: South Africa has the highest number of patients on antiretroviral therapy (ART) globally. Various obstacles were identified that influence effective reporting of adverse drug reactions (ADRs) in resource-limited countries. This investigation aimed to identify, classify and analyse the prevalence...
  2. Fungal Pathogens in <em>Pinus</em> and <em>Eucalyptus</em> Seedling Nurseries in South Africa: A Review

    Item type: Journal Article • Journal: South African Forestry Journal
    Fungal diseases are responsible for severe losses of Pinus and Eucalyptus seedlings in South African forest nurseries. Pathogens such as Botrytis cinerea, Fusarium oxysporum, Rhizoctonia solani, Phytophthora cinnamomi, Cylindrocladium scoparium and Colletotrichum spp. are commonly associated with disease symptoms. Control...
  3. RAPD-fingerprinting to Identify <em>Eucalyptus grandis</em> Clones

    Item type: Journal Article • Journal: South African Forestry Journal
    DNA was isolated from 12 clones of Eucalyptus grandis, and subsequently amplified with arbitrary primers (RAPD-PCR). It was possible to distinguish between the different clones on the basis of the resultant fingerprints. We conclude that the RAPD technique is suited...
  4. The Use of Grasses as a Weed Management Technique in a Degraded Riparian Site

    Item type: Journal Article • Journal: South African Forestry Journal
    A stand of Eucalyptus grandis growing in the riparian zone of the Sabie River in the eastern Transvaal was clearfelled during 1992, leaving the site disturbed, covered with slash and infested with alien invader plants. A randomised complete block trial...
  5. ‘N Belowende tegniek vir die bepaling van struikbenutting

    ‘N Belowende tegniek vir die bepaling van struikbenutting

    ‘n Moontlike tegniek om die mate van struikbeijutting te bepaal, sonder enige vooraf metings, word uiteengesit. ‘n Hoë korrelasie (r = 0,8563) bestaan tussen lootdeursnit en totale lootmassa (massa van die loot plus blare) van Portulacaria afra. ’n Weidingsproef is...
  6. Evapotranspirasie‐studies op <em>themeda triandra</em> forsk. Onder veldtoestande

    Evapotranspirasie‐studies op <em>themeda triandra</em> forsk. Onder veldtoestande

    Relatief eenvoudige hidrouliese lisimeters is gebruik om die verliese as gevolg van evapotranspirasie (Et) van Themeda triandra onder veldtoestande te bepaal vir die periode Desember 1972 tot Julie 1975.
  7. Gebruike van <em>phragmites australis</em>

    Gebruike van <em>phragmites australis</em>

    Phragmites australis (communis) is een van die mees wydverspreide Angiosperme. Die rede hiervoor is dat dit besondei aanpasbaar is by verskillende omgewingstoestande en vegetatief en geslagtelik voortplant. Daarom kan dit as grondbewaringsgewas gebruik word byvoorbeeld om sediment, slootwalle en slootbodems...
  8. Droë massaproduksie van vyf eenjarige <em>Medicago</em>‐genotipes in die sentrale oranje‐vrystaat, soos beinvloed deur planttyd

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Bogrondse droë massa‐opbrengste (DM) van Medicago truncatula, cvv. Cyprus en Jemalong, M. aculeata var. inermis, cv. SA 4438, M. orbicularis, cv. SA 2552 en M. rugosa, cv. Paragosa wat op ses verskillende datums gevestig is, is in ‘n veldproef onder...
  9. ‘n Studie van ruproteïeninhoud en verteerbaarheid van vyf eenjarige <em>medica</em>go‐genotipes in die sentrale oranje‐vrystaat

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Die bogrondse groei van Medicago truncatula, cvv. Cyprus en Jemalong, M. aculeata var. inermis, cv. SA 4438, M. orbicularis, pv. SA 2552 en M. rugosa, cv. Paragosa, afkomstig van ‘n besproeide veldproef, is vir ruproteïen en vir in vitro‐ verteerbaarheid...