Articles by Keyword: Grain Sorghum

Search results for Grain Sorghum

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  1. 'n Evaluering van die volumetermetode om aggregaatstabiliteit van 'n vertisol te kwantifiseer

    'n Evaluering van die volumetermetode om aggregaatstabiliteit van 'n vertisol te kwantifiseer

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die 0–10 mm laag van twee proefpersele van 'n vertiese grond waarop graansorghum sonder enige bewerking met behoud van 'n stoppeldeklaag (GBS) en met die Stoppel verwyder (GBG), verbou is, is gemonster. Grond- koolstofinhoud was 1,82% en 1,15% onderskeidelik. Massas...
  2. Allocation of resources in sorghum (<em>Sorghum bicolor</em> L. Moench) yield trials

    Allocation of resources in sorghum (<em>Sorghum bicolor</em> L. Moench) yield trials

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Three replications of twenty-two grain sorghum genotypes were planted in a randomized block design. Plots consisted of three rows. Yield records were taken from eight single plants as well as from 2-m samples of each row. The components of variation...
  3. Changes in percentage moisture loss of excised leaves of seven field-grown grain sorghum genotypes

    Changes in percentage moisture loss of excised leaves of seven field-grown grain sorghum genotypes

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The objectives of these experiments were to study the seasonal and diurnal changes in percentage moisture loss (PML) and correlated characteristics of excised leaves. Seven grain sorghum genotypes were planted in a randomized block design and their PML and the...
  4. The inheritance of percentage moisture loss in sorghum leaves

    The inheritance of percentage moisture loss in sorghum leaves

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The inheritance of drought resistance and agronomic characteristics of field-grown sorghum plants was determined. High heritabilities were recorded for each characteristic. The genetic differences of percentage moisture loss were due to genes exhibiting incomplete dominance. The agronomic characteristics of plant...
  5. Relationships between yield, base temperature and drought resistance in grain sorghum

    Relationships between yield, base temperature and drought resistance in grain sorghum

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The object of this study was to investigate the interrelationship between yield, its components, base temperature and drought resistance of grain sorghum. Seven commercial cultivars and 27 F1 progenies were compared in two separate randomized block trials. A total of...
  6. The inheritance of base temperature in grain sorghum

    The inheritance of base temperature in grain sorghum

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Two different methods were used to identify the genetic determinants of the base temperatures of sorghum seeds which were germinated at 15°C. These were a factorial mating design and a crossing system to identify lines which contain the greatest number...
  7. Damage caused by <em>Chilo partellus</em> (Swinhoe) (Lepidoptera: Pyralidae) to various cultivars of grain sorghum, <em>Sorghum bicolor</em> (L.) Moench

    Damage caused by <em>Chilo partellus</em> (Swinhoe) (Lepidoptera: Pyralidae) to various cultivars of grain sorghum, <em>Sorghum bicolor</em> (L.) Moench

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Grain sorghum cultivars differed significantly in yield response to natural Chilo partellus infestations over a period two seasons. These differences were ascribed to cultivar characteristics of which differences in length of growing season requirements were the most important. Differences in...
  8. Unavoidable losses in insecticidal control of <em>Chilo partellus</em> (Swinhoe) (Lepidoptera: Pyralidae) in maize and grain sorghum

    Unavoidable losses in insecticidal control of <em>Chilo partellus</em> (Swinhoe) (Lepidoptera: Pyralidae) in maize and grain sorghum

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Single applications of insecticide against Chilo partellus at different times in the pre-flowering stages of maize and from early whorl to soft dough stage in grain sorghum were compared with multiple applications. Based on yield and the incidence of damaged...
  9. The effect of plant density on the injuriousness of <em>Busseola fusca</em> (Fuller) (Lepidoptera: Noctuidae) in grain sorghum

    The effect of plant density on the injuriousness of <em>Busseola fusca</em> (Fuller) (Lepidoptera: Noctuidae) in grain sorghum

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The influence of five different plant densities on whorl damage, internal damage, tillering and yield of grain sorghum under attack by Busseola fusca was evaluated over two seasons, using artificial infestation of three egg batches (90 eggs) per 5-m row...
  10. Infestation and injury levels of stem borers in relation to yield potential of grain sorghum

    Infestation and injury levels of stem borers in relation to yield potential of grain sorghum

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The infestation patterns of the stem borer species Busseola fusca (Fuller) and Chilo partellus (Swinhoe) and the effect on plant yield, tiller number, plant height, peduncle length and internal damage were determined under conditions of differential nitrogen fertilization and soil...