Articles by Author: Sphamandla Sengwayo

Search results for Sphamandla Sengwayo

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  1. Trends and magnitudes of genotype × environment interaction variance components for yield, quality and agronomic traits among coastal short cycle sugarcane breeding populations

    Trends and magnitudes of genotype × environment interaction variance components for yield, quality and agronomic traits among coastal short cycle sugarcane breeding populations

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Genotype × environment interactions (G×E) can reduce the genetic contribution to the phenotype and increase minimum detectable differences, which eventually reduce selection precision. This study was conducted to determine the magnitudes and trends of G×E variance components for sugarcane yield,...
  2. Location and crop-year effects on sugarcane genotype performance for the coastal short cycle breeding programmes in South Africa

    Location and crop-year effects on sugarcane genotype performance for the coastal short cycle breeding programmes in South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Genotypes are tested in several environments to evaluate the influence of genotype × environment interactions prior to their release as cultivars. The objective of this study was to determine location and crop-year effects and their implications on coastal short cycle...
  3. Trends in broad-sense heritability and predicted selection gains for the coastal short cycle breeding sugarcane programmes in South Africa

    Trends in broad-sense heritability and predicted selection gains for the coastal short cycle breeding sugarcane programmes in South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Coastal short cycle breeding programmes develop early maturing sugarcane cultivars adapted to harvesting at 12 months under rainfed conditions. Genotypes progressed to the advanced cultivar stage from these programmes are merged and evaluated concurrently in multi-environment trials across the region...
  4. Prevalence of raised body mass indices and the association with high blood pressure and hyperglycaemia in the rural black population of Ga-Mothapo village, Capricorn District of Limpopo province

    Prevalence of raised body mass indices and the association with high blood pressure and hyperglycaemia in the rural black population of Ga-Mothapo village, Capricorn District of Limpopo province

    Item type: Journal Article • Journal: South African Family Practice
    Objective: To assess the prevalence of elevated body mass index and to establish whether there was an association between raised body mass index (BMI) and high blood pressure (BP) and hyperglycaemia in the rural population of Ga-Mothapo village, Limpopo province.