Articles by Author: I A Russell

Search results for I A Russell

We found 55 results for you
  1. Short‐term burning treatments and ecological interactions in the herb layer of false thornveld of the eastern province

    Short‐term burning treatments and ecological interactions in the herb layer of false thornveld of the eastern province

    The effects of five years of controlled burning on total floristic composition and on some important species were investigated.
  2. Names of Southern African grasses: Name changes and additional species reported since 1955

    Names of Southern African grasses: Name changes and additional species reported since 1955

    In the twenty‐five years since Chippindall's ‘Guide to the Identification of Grasses’ in Meredith The Grasses and Pastures of South Africa (1955), which covered about 910 species and subspecific taxa, there have been 227 name changes and 1791 additional species...
  3. Variation in important pasture grasses: I. Morphological and geographical variation

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Seven species are important pasture grasses throughout the western Transvaal, Orange Free State, northern Cape and Natal. Taxonomically, each is a widely distributed species complex with a range of morphological variants and many ecotypes. The local forms well suited to...
  4. Variation in important pasture grasses. II. Cytogenetic and reproductive variation

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The chromosome numbers and reproductive variation of seven important pasture grasses from South Africa are compared. This comparison indicates that all these species form polyploid complexes, all reproduce both sexually and either apomictically or vegetatively, and some form of hybridization...
  5. Book Review

    Book Review

    Item type: Journal Article • Journal: South African Journal of African Languages
  6. Effect of soil surface amendments on runoff and erosion from simulated rain applied to a sesquioxidic soil

    Effect of soil surface amendments on runoff and erosion from simulated rain applied to a sesquioxidic soil

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Simulated rainfall, using low conductivity water, was applied at an intensity of 63 mm h−1 to a field soil of the Doveton series (a kaolinitic, sesquioxidic clay soil at Cedara in Natal, recently cultivated out of pasture) after pre-treatment of...
  7. The effect of various tillage methods on soil and water losses from maize lands

    The effect of various tillage methods on soil and water losses from maize lands

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Natural runoff plots on which maize was produced were laid out at Cedara on a well-drained clay loam Doveton soil and showed, over a six-year period, the benefits to be gained from adopting conservation tillage practices. The four tillage and...
  8. The amaXhosa <em>ukuthwala</em> marriage custom in fact and fiction: A contemporary critique

    The amaXhosa <em>ukuthwala</em> marriage custom in fact and fiction: A contemporary critique

    Item type: Journal Article • Journal: South African Journal of African Languages
    Ukuthwala is traditionally a marriage custom within the amaXhosa culture in South Africa which permits a ‘legal abduction’ of a bride-to-be. Similar customs of ‘bridal abduction’ exist, most notably in Kyrgyzstan, where it is known as ala kachuu. Research into...
  9. Case studies on the socio-economic characteristics and lifestyles of subsistence and informal fishers in South Africa

    Case studies on the socio-economic characteristics and lifestyles of subsistence and informal fishers in South Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    To develop a management strategy for informal fishers, a necessary first step is information about the nature of these fishers, their numbers and their socio-economic status. To accomplish this, a survey of socio-economic conditions and use of marine resources was...