Articles by Author: Je Kietzka

Search results for Je Kietzka

We found 6 results for you
  1. <em>Pinus maximinoi:</em> A Promising Species in South Africa

    Item type: Journal Article • Journal: South African Forestry Journal
    A number of provenance trials of Pinus pseudostrobus initiated by the Oxford Forestry Institute were planted in the Eastern Transvaal Forest Region. Taxonomic studies later revealed that many of the provenances included in these trials were P. maximinoi (previously known...
  2. The Development and Utilisation of Vegetative Propagation in Mondi for Commercial Afforestation Programmes

    Item type: Journal Article • Journal: South African Forestry Journal
    This paper provides an updated review of the applied clonal programme in Mondi Forests for the production of high yield and quality Eucalayptus fibre for the Mondi Groups 450 000 tonne pulp and liner board mill. Brief mention is also...
  3. THE USE AND IMPORTANCE OF HYBRID INTENSIVE FORESTRY IN SOUTH AFRICA

    Item type: Journal Article • Journal: South African Forestry Journal
    Interspecific hybrids are becoming increasingly important to the South African forest industry. Presently, hybrids of the subtropical eucalypts are the most prominent. Many thousands of hectares of selected clonal plantings have been established. The most common hybrid combinations are Eucalyptus...
  4. The Development and Utilisation of Vegetative Propagation in Mondi for Commercial Afforestation Programmes

    Item type: Journal Article • Journal: South African Forestry Journal
    This paper provides an updated review of the applied clonal programme in Mondi Forests for the production of high yield and quality Eucalyptus fibre for the Mondi Group's 450 000 tonne pulp and liner board mill. Brief mention is also...
  5. “New” pine species and hybrids: Is there still potential?

    “New” pine species and hybrids: Is there still potential?

    Item type: Journal Article • Journal: The Southern African Forestry Journal
    Many tree breeding programs are moving into advanced generation breeding, and breeders need to ensure continued gains from these programs. The potential of infusing genetic material into existing breeding programs, the introduction of “new” species, and hybridisation are discussed as...
  6. Genetic variation in survival, growth, and stem form of <em>Pinus leiophylla</em> in Brazil and South Africa and provenance resistance to pitch canker

    Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal
    Pinus leiophylla is a relatively common pine that occurs in the mountains of western and central Mexico. Between 1987 and 1990, Camcore, North Carolina State University, sampled 11 populations and 309 mother trees of the species to determine patterns of...