Articles by Author: Ys Naik

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  1. Evaluation of electrical conductivity of the fertiliser solution on growth and flowering of a <em>Cymbidium</em> hybrid

    Evaluation of electrical conductivity of the fertiliser solution on growth and flowering of a <em>Cymbidium</em> hybrid

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effects of three fertiliser solutions (20:20:20, 15:5:25 and 12:30:10 NPK) with electrical conductivity (EC) of 1, 1.5 or 2 mS cm−1 on growth and flowering of Cymbidium ‘Sleeping Nymph’ were investigated over three years. One-year-old tissue-cultured propagules of ‘Sleeping...
  2. The molluscicidal efficacy of methanol extracts of <em>Pterocarpus angolensis, Sclerocarya birrea, Pappea capensis</em> and <em>Commiphora africana</em> against <em>Lymnaea natalensis</em> and <em>Helisoma duryi</em>

    The molluscicidal efficacy of methanol extracts of <em>Pterocarpus angolensis, Sclerocarya birrea, Pappea capensis</em> and <em>Commiphora africana</em> against <em>Lymnaea natalensis</em> and <em>Helisoma duryi</em>

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Tropical plants have been shown to contain compounds that have some molluscicidal activity against snail intermediate hosts of parasitic trematodes. Dried methanol extracts of Pterocarpus angolensis, Sclerocarya birrea, Pappea capensis and Commiphora africana were screened for molluscicidal activity against Lymnaea...
  3. Heavy metal contamination of water and fish in peri-urban dams around Bulawayo, Zimbabwe

    Heavy metal contamination of water and fish in peri-urban dams around Bulawayo, Zimbabwe

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Urban effluents are significant sources of heavy metal pollution in fresh water. Metal contamination in dams around the city of Bulawayo, Zimbabwe, were monitored during October 2014 to assess ecological and public health risks. Heavy metals were measured in water,...
  4. Occurrence of oestrogenic pollutants and widespread feminisation of male tilapia in peri-urban dams in Bulawayo, Zimbabwe

    Occurrence of oestrogenic pollutants and widespread feminisation of male tilapia in peri-urban dams in Bulawayo, Zimbabwe

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Peri-urban water bodies are at risk from excessive pollution as they are direct sinks for urban effluents. The occurrence of oestrogenic and androgenic endocrine disrupting chemicals (EDCs) in effluents and water bodies around the city of Bulawayo, Zimbabwe, and their...