Articles by Author: W R Teague

Search results for W R Teague

We found 21 results for you
  1. The expected response <em>of acacia karroo</em> hayne to moisture stress and defoliation

    The expected response <em>of acacia karroo</em> hayne to moisture stress and defoliation

    The generalised growth of woody species and their response to defoliation is presented to provide a conceptual background for an examination of the growth of Acacia karroo and its response to defoliation. Particular attention is paid to water stress and...
  2. Veld management in the semi‐arid bush‐grass communities of the eastern cape

    Veld management in the semi‐arid bush‐grass communities of the eastern cape

    Ecologically and economically the most acceptable way of using the vegetation in these ecosystems is to stock with grazers and browsers to utilize both the herbaceous and the woody plants. The major factor limiting primary production is a low and...
  3. Growth patterns and annual growth cycle of <em>Acacia karroo</em> Hayne in relation to water stress I. Leaf and shoot growth

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A field study was conducted to describe the growth patterns of A. karroo at different levels of water stress in different edaphic situations.
  4. The response of <em>Acacia karroo</em> plants to defoliation by hand compared to defoliation by goats

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The leaf and shoot growth of Acacia karroo plants defoliated by goats was compared to that of plants in which leaf only or leaf plus shoot‐tips were removed by hand, to simulate goat browsing.
  5. Growth patterns and annual growth cycle of <em>Acacia karroo</em> hayne in relation to water stress

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The use and replenishment of carbohydrate reserves in Acacia karroo is closely related to the successive events of the annual growth cycle. Acacia karroo displayed the rapid and substantial decline in non‐structural carbohydrates typical of deciduous woody species. In addition,...
  6. Effect of the intensity and phenophase of defoliation and water stress on the rate of photosynthesis and the recovery of carbohydrate reserves in <em>acacia karroo</em> hayne

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A field study was conducted with Acacia karroo plants to determine changes in relative photosynthetic rates, the extent of carbohydrate reserve depletion and the rate reserves take to recover, following defoliation by goats at different intensities and phenophases, at a...
  7. The expected response of <em>acacia karroo</em> hayne to moisture stress and defoliation

    The expected response of <em>acacia karroo</em> hayne to moisture stress and defoliation

    The generalised growth of woody species and their response to defoliation is presented to provide a conceptual background for an examination of the growth of Acacia karroo and its response to defoliation. Particular attention is paid to water stress and...
  8. The role of <em>acacia karroo</em> in the false thornveld of the eastern cape <em>die rol van</em> acacia karroo <em>in die skyn‐doring veld van die oos‐kaap</em>

    The role of <em>acacia karroo</em> in the false thornveld of the eastern cape <em>die rol van</em> acacia karroo <em>in die skyn‐doring veld van die oos‐kaap</em>

    An investigation was undertaken to determine the relationship between tree density and grass production, tree density and overall feed production and between tree density and animal production. It was found that grass production does not decrease linearly with increasing tree...
  9. Towards a method of assessing the veld condition of the valley bushveld in the Eastern Cape

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Currently, no technique is available for assessing the condition of Valley Bushveld in the Eastern Cape. The objective of this investigation was to develop a method of scoring bushveld according to its productive condition. It was established, through principal component...
  10. Effect of intensity of defoliation by goats at different phenophases on leaf and shoot growth of <em>acacia karroo</em> hayne

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Defoliation by goats (leaves plus shoots) during the growing phenophases resulted in a considerable stimulation of leaf and shoot growth relative to non‐defoliated plants. The response differed considerably depending on the intensity and phenophase of defoliation. Plants were most susceptible...