Articles by Keyword: Lt Em Gt In Vitro Lt Em Gt

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  1. <em>In Vitro</em> Propagation of <em>Eucalyptus radiata</em>

    Item type: Journal Article • Journal: South African Forestry Journal
    In vitro propagation of Eucalyptus radiata is described. Low rates of in vitro plant multiplication were achieved with most. tested E. radiata clones on Nitsch & Nitsch (1967) medium (NN-67), supplemented with indole butyric acid. (IBA), kinetin (KIN) and 6-benzyl...
  2. Voluntary intake of several planted pastures by sheep and an assessment of NDF and IVDOM as possible predictors of intake

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The aim was to study the quality and quantity of pasture selected by sheep on various planted pastures. A further aim was to assess NDF and IVDOM as easy measurable parameters for use in equations to predict intake. Pasture samples...
  3. The effects of continuous and rotational grazing of sourveld on the quality of herbage selected by Simmentaler heifers

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A grazing trial was conducted at the Kokstad Agricultural Station to compare the dry matter digestibility (DMD) and crude protein content (CP) of diets selected by four fistulated cattle which were continuously and rotationally grazing sourveld. Two stocking rates of...
  4. The effect of veld condition on the quality of diet selected by cattle grazing the Natal Sour Sandveld

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The quality of diet selected by steers fistulated at the oesophagous was related to veld condition in a simulated rotational grazing system on the Natal Sour Sandveld. Six camps, ranging in veld condition score from 8,5 to 53%, were grazed...
  5. Optimum temperature and inoculation levels for <em>in vitro</em> production of <em>Pratylenchus brachyurus</em> on carrot discs

    Optimum temperature and inoculation levels for <em>in vitro</em> production of <em>Pratylenchus brachyurus</em> on carrot discs

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Pratylenchus brachyurus is an economically important parasite of several agricultural crops, including potato, groundnut, maize and soybean. Large numbers of this species are required for research on pathogenecity, host plant resistance and efficacy of nematicides. The effect of inoculation density...
  6. The effects of strategic nitrogen fertiliser application during the cool season on perennial ryegrass-white clover pastures in the Western Cape Province 4. Selected nutritive characteristics and mineral content

    The effects of strategic nitrogen fertiliser application during the cool season on perennial ryegrass-white clover pastures in the Western Cape Province 4. Selected nutritive characteristics and mineral content

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The influence of a single application of fertiliser N (0, 50, 100 and 150 kg N ha−1) applied in either autumn, early winter, late winter, early spring or late spring on selected nutritive and mineral parameters of a perennial ryegrass-white...
  7. Chemical composition and <em>in vitro</em> gas production of vetch (<em>Vicia sativa</em>) and some browse and grass species in northern Ethiopia

    Chemical composition and <em>in vitro</em> gas production of vetch (<em>Vicia sativa</em>) and some browse and grass species in northern Ethiopia

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Chemical composition and in vitro gas production of vetch (Vicia sativa) and some browse and grass species from northern Ethiopia were investigated. Vetch (fresh cut) was sampled in September and vetch hay samples were taken in October both during the...
  8. Effect of cutting height and frequency on <em>Leucaena leucocephala</em> forage and wood production

    Effect of cutting height and frequency on <em>Leucaena leucocephala</em> forage and wood production

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Leucaena leucocephala is a fast‐growing tree that can provide both high quality forage and firewood. The objective of this trial was to determine the optimum height and frequency of cutting for both wood and forage production. Cutting heights at 0.3...
  9. Botanical composition, yield and nutritional quality of grassland in relation to stages of harvesting and fertiliser application in the highlands of Ethiopia

    Botanical composition, yield and nutritional quality of grassland in relation to stages of harvesting and fertiliser application in the highlands of Ethiopia

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Livestock production contributes to the livelihoods of the Ethiopian people; however, the productivity of the livestock subsector in the highlands is low due to malnutrition. Therefore, this study assessed the botanical composition, dry matter (DM) yield, chemical composition and in...
  10. Comparison of procedures to evaluate the pathogenicity of Ceratocystisfimbriata sensu lato isolates from Eucalyptus in South Africa

    Comparison of procedures to evaluate the pathogenicity of Ceratocystisfimbriata sensu lato isolates from Eucalyptus in South Africa

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Ceratocystis fimbriata sensu lato (s.l.) is an important pathogen of Eucalyptus. Pathogenicity of isolates has typically been evaluated by inoculating seedlings under greenhouse conditions. It is, however, not clear how accurately this reflects pathogenicity under field conditions. In this study,...