Articles by Keyword: Dormancy Rating

Search results for Dormancy Rating

We found 20 results for you
  1. Some factors effecting the dry matter production of lucerne cultivars

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Dry matter yields of lucerne cultivars were affected by different factors. A simple equation is given for predicting total dry matter yield of irrigated lucerne based on mean maximum temperatures in January.
  2. Pasture‐use patterns on dairy and beef farms in the natal midlands

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Pasture sites for each of the species grown are classified for both dryland and irrigated pastures in the Natal Midlands. Only six species viz. kikuyu, Italian ryegrass, Eragrostis curvula, Festuca arundinacea (tall fescue), Dactylis glomerata (cocksfoot) and Trifolium repens (white...
  3. Germination of fresh seed of thirty <em>Cenchrus ciliaris</em> ecotypes as influenced by seed treatment

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Germination tests were carried out with fresh seed of 30 ecotypes of Cenchrus ciliaris produced under uniform conditions. Untreated seeds were compared with washed and shelled seeds. The percentage germination of untreated seed varied between 0% and 48%, with an...
  4. A complex dormancy mechanism in seeds of the weed <em>Rubus cuneifolius</em>

    A complex dormancy mechanism in seeds of the weed <em>Rubus cuneifolius</em>

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Both the endocarp and embryo contribute to the dormancy of Rubus cuneifolius seed. Whereas scarification was found to break the dormancy imposed by the endocarp, embryo dormancy could only be overcome by a combination of treatments. These treatments consisted of...
  5. The success of the AMMI model in predicting lucerne yields for cultivars with differing dormancy characteristics

    The success of the AMMI model in predicting lucerne yields for cultivars with differing dormancy characteristics

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The AMMI model, which incorporates both additive and multiplicative components into an integrated, powerful, least squares analysis, is used for the analysis of cultivar trials at different localities. These trials are a major experimental component in crop production and plant...
  6. Can molybdenum reduce pre-harvest sprouting in wheat?

    Can molybdenum reduce pre-harvest sprouting in wheat?

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effect of foliar application of molybdenum (Mo) on grain dormancy was examined in six wheat cultivare at four sites. Application of 100 mg L−1 Mo at flag leaf stage significantly increased grain Mo content at all sites and reduced...
  7. Determination of the preharvest sprouting resistance of South African winter wheat (<em>Triticum aestivum</em> L.) cultivars

    Determination of the preharvest sprouting resistance of South African winter wheat (<em>Triticum aestivum</em> L.) cultivars

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Preharvest sprouting significantly reduces the quality of the South African wheat crop. This study classified the preharvest sprouting resistance of 17 South African winter wheat cultivars sampled over a range of typical winter wheat growth environments. Sampling was performed under...
  8. The role of temperature in the germination of subterranean and aerial seeds of <em>Commelina benghalensis</em> L.

    The role of temperature in the germination of subterranean and aerial seeds of <em>Commelina benghalensis</em> L.

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Information on the temperature requirements for germination of weed seeds can be used to predict the soil temperature required for weed emergence. The germination behaviour of the two types of mature C. benghalensis seeds, ie. subterranean and aerial, were studied...
  9. Genotypic response to chilling period of apple buds from two Western Cape localities

    Genotypic response to chilling period of apple buds from two Western Cape localities

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    One-year-old, ca. 40 cm long shoots of various apple cultivars were selected from commercial orchards in both the Elgin [34°S, 305 m, ca. 750 Utah Chill Units (CU)] and Koue Bokkeveld (33°S, 945 m, ca. 1300 CU) regions of the...
  10. Breaking dormancy to improve germination in seeds of <em>Acacia erioloba</em>

    Breaking dormancy to improve germination in seeds of <em>Acacia erioloba</em>

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Although Acacia erioloba is an ecologically important indigenous leguminous tree in semi-arid areas of Southern Africa, its propagation remains difficult because of seed dormancy. Different techniques of scarifying the seeds to break dormancy were tested and compared viz.: non-scarified (control),...