Articles by Author: B I Nyoka

Search results for B I Nyoka

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  1. <em>Pinus patula</em> progeny test: Heritability estimates and genetic correlations between fifth- and eighth-year traits

    Item type: Journal Article • Journal: South African Forestry Journal
    Seed for a breeding seedling orchard produced from a factorial mating design (33 progenies) and from a diallel (four progenies) was used to establish this progeny test. Analysis of fifth- and eighth-year data showed highly significant differences between the parents...
  2. Genetic Parameters and Provenance Productivity of <em>Pinus oocarpa</em> and <em>Pinus patula</em> ssp. <em>tecunumanii</em>

    Item type: Journal Article • Journal: South African Forestry Journal
    Results are presented of a provenance-progeny test of six populations of Pinus oocarpa Schiede and two of P. patula Schiede & Deppe in Schlecht. & Cham. ssp. tecunumanii (Equiluz & Perry) Styles; each population was represented by 8 or 16...
  3. Setting Research Priorities for Indigenous and Social Forestry in Zimbabwe

    Setting Research Priorities for Indigenous and Social Forestry in Zimbabwe

    Item type: Journal Article • Journal: The Southern African Forestry Journal
    The client base of the Research and Development Division of the Forestry Commission (the main forestry research institution in the country) has broadened from a few large exotic plantation owners to millions of rural communities who depend on indigenous forests...
  4. Genetic improvement of <em>Eucalyptus grandis</em> using breeding seedling orchards and multiple population breeding strategy in Zimbabwe

    Genetic improvement of <em>Eucalyptus grandis</em> using breeding seedling orchards and multiple population breeding strategy in Zimbabwe

    Item type: Journal Article • Journal: The Southern African Forestry Journal
    Eucalyptus grandis is commercially important in Zimbabwe and a breeding program has been in progress since 1962. A classical breeding strategy was used initially but, in 1981, the Multiple Population Breeding Strategy (MPBS) was implemented and the concept of the...