Articles by Keyword: Plant Species

Search results for Plant Species

We found 452 results for you
  1. Patterns of plant selection by grazing cattle in two savanna grasslands: A plant's eye view

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The amount of grazing experienced by individual tufts of the most abundant perennial grasses of two Transvaal savannas was monitored at regular intervals for two growing seasons. In general, Setaria incrassata and Themeda triandra were heavily grazed, Bothriochloa insculpla and...
  2. Effects of aqueous extracts from <em>Artemisia afra</em> parts and soil on seed germination and early seedling development in selected plant species

    Effects of aqueous extracts from <em>Artemisia afra</em> parts and soil on seed germination and early seedling development in selected plant species

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Aqueous extracts from leaves, stems, roots of the aromatic shrub Artemisia afra and soil on which Artemisia was grown, were used to investigate their inhibitory effects on germination and seedling development of maize (Zea mays), bean (Phaseolus vulgaris) and ryegrass...
  3. Determining spatial and temporal variability in quantity and quality of vegetation for estimating the predictable sustainable stocking rate in the semi-arid savanna

    Determining spatial and temporal variability in quantity and quality of vegetation for estimating the predictable sustainable stocking rate in the semi-arid savanna

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    This study assessed the importance of spatial and temporal variation in plant quality and quantity for determining sustainable stocking rates in game, commercial and communal ranches in semi-arid savanna of the Northern Cape Province, South Africa, in wet and dry...
  4. Impacts of high utilisation pressure on biodiversity components in <em>Colophospermum mopane</em> savanna

    Impacts of high utilisation pressure on biodiversity components in <em>Colophospermum mopane</em> savanna

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    This study aimed to quantify and evaluate the effects of heavy land utilisation, mainly grazing, on plant species richness and diversity, species abundance, vegetation structure and soil characteristics in a communal area in Colophospermum mopane dominated savanna in southern Africa...
  5. A vegetation-based hierarchical classification for seasonally pulsed floodplains in the Okavango Delta, Botswana

    A vegetation-based hierarchical classification for seasonally pulsed floodplains in the Okavango Delta, Botswana

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    A classification scheme is presented for seasonal floodplains of the Boro-Xudum distributary of the Okavango Delta, Botswana. This distributary is subject to an annual flood-pulse, the inundated area varying from a mean low of 3 600 km2 to a mean...
  6. Vegetative traits predict grass species' invasiveness and the invasibility of restored grassland

    Vegetative traits predict grass species' invasiveness and the invasibility of restored grassland

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Understanding how grass species' traits relate to their invasiveness and the invasibility of their monocultures can inform restoration of diverse grassland. We measured vegetative traits for 18 bunch grass species local to Pietermaritzburg (KwaZulu-Natal, South Africa) and measured their competitive...
  7. The socioeconomic status of the non-timber forest product subsector in Swaziland

    The socioeconomic status of the non-timber forest product subsector in Swaziland

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    A wide spectrum of non-timber forest products (NTFPs) generally has a remarkable contribution to the household economy in rural areas. Most communities make a living either through their domestic or commercial use. The objective of this study was to review...
  8. Allelopathic effects of invasive <em>Eucalyptus camaldulensis</em> on germination and early growth of four native species in the Western Cape, South Africa

    Allelopathic effects of invasive <em>Eucalyptus camaldulensis</em> on germination and early growth of four native species in the Western Cape, South Africa

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Eucalyptus camaldulensis Dehnh. (red river gum; Myrtaceae) is an invasive tree in riparian habitats of the Western Cape, South Africa, where it replaces indigenous vegetation and affects ecosystem functioning. These invasions lead to changes in river geomorphology and reduction in...
  9. Sensitivity of <em>Meloidogyne incognita</em> second-stage juvenile hatch, motility and viability to pure cucurbitacins and cucurbitacin-containing phytonematicides

    Sensitivity of <em>Meloidogyne incognita</em> second-stage juvenile hatch, motility and viability to pure cucurbitacins and cucurbitacin-containing phytonematicides

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Previous claims suggested that pure active ingredients from botanicals were less effective in pest management than their fermented crude-extracts. The objective of this study was to compare the toxicity of pure (98%) cucurbitacin A and B on nematode bioactivities with...
  10. Site Indicator Species for Predicting Productivity of Pine Plantations in the Southern Cape

    Item type: Journal Article • Journal: South African Forestry Journal
    A means of predicting site potential for pine species in the Southern Cape based on 10 vegetation associations is presented.