Articles by Keyword: Lt Em Gt Acacia Mangium Lt Em Gt

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  1. A single dominant <em>Ganoderma</em> species is responsible for root rot of <em>Acacia mangium</em> and <em>Eucalyptus</em> in Sumatra

    A single dominant <em>Ganoderma</em> species is responsible for root rot of <em>Acacia mangium</em> and <em>Eucalyptus</em> in Sumatra

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Ganoderma root rot is the most serious disease affecting commercially planted Acacia mangium in plantations in Indonesia. Numerous Ganoderma spp. have been recorded from diseased trees of this species and to a lesser extent Eucalyptus, causing confusion regarding the primary...
  2. Breeding polyploid varieties of tropical acacias: progress and prospects

    Breeding polyploid varieties of tropical acacias: progress and prospects

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    The paper reviews a decade of progress with breeding new polyploid varieties of Acacia mangium and other tropical acacias in Vietnam, and outlines plans for future strategies to complement conventional diploid breeding. Polyploid breeding is a means of introducing diversity...
  3. A new screening method for <em>Ganoderma philippii</em> tolerance in tropical <em>Acacia</em> species

    A new screening method for <em>Ganoderma philippii</em> tolerance in tropical <em>Acacia</em> species

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Red root rot disease caused by Ganoderma philippii is one of the most economically important diseases of tropical Acacia species. Research on field control of the disease has to date focused on inoculum reduction, silviculture practices and application of biological...
  4. Evaluating the inheritance of <em>Ceratocystis acaciivora</em> symptom expression in a diverse <em>Acacia mangium</em> breeding population

    Evaluating the inheritance of <em>Ceratocystis acaciivora</em> symptom expression in a diverse <em>Acacia mangium</em> breeding population

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    A dramatic rise in the incidence of a serious canker and wilt disease of Acacia mangium has led to the replacement of thousands of hectares of plantation forests in eastern Sabah. A disease screening program was initiated to evaluate levels...
  5. A Field Demonstration of the Effect on Streamflow of Clearing Invasive Pine and Wattle Trees from a Riparian Zone

    Item type: Journal Article • Journal: South African Forestry Journal
    Two portable weirs were used to quantify changes in streamflow following clearfelling of a dense stand of self-sown Pinus patula and Acacia mearnsii along a riparian zone on Kalmoesfontein, a SAPPI forest plantation south-east of Lydenburg, Eastern Transvaal. The weirs...
  6. The effect of tebuthiuron on the vegetation of the thorn Bushveld of the Northern Cape – a preliminary report

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Two formulations of tebuthiuron i.e. Graslan 20P and Graslan 40P are currently being evaluated in the Molopo area. Tebuthiuron was applied aerially at ten application rates, in combination with two application dates.
  7. Browse and herbage production in the eastern cape thornveld in response to tree size and defoliation frequency

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Grass yields in this semiā€arid savanna declined as the size of Acacia karroo increased. Browse yields, however, did not increase as trees grew out beyond 1,8 m in height and it follows that if bush thinning is required, then the...
  8. An effective technique for breaking the seed dormancy of <em>Acacia longifolia</em>

    An effective technique for breaking the seed dormancy of <em>Acacia longifolia</em>

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effect of different pre-treatments on the dormancy of the hard-coated seeds of Acacia longifolia Andr. Willd. was determined. A final germination figure of 100% could be obtained with hot water treatments, acid scarification and manual scarification. However, if germination...
  9. Investigations on the removal by animals of <em>Acacia longifolia</em> (Fabaceae) seed from the soil surface at Banhoek in the southwestern Cape

    Investigations on the removal by animals of <em>Acacia longifolia</em> (Fabaceae) seed from the soil surface at Banhoek in the southwestern Cape

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Studies on the removal of Acacia longifolia (Andr.) Willd. seed from trays on the soil surface showed that 91,07% of the seed was removed after one week of exposure. Exclusion treatments indicated that ants removed 57,22% of the seed while...
  10. Imbibition and germination of seeds of three <em>Acacia</em> species from Ethiopia

    Imbibition and germination of seeds of three <em>Acacia</em> species from Ethiopia

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Imbibition and germination of seeds of three Acacia species from Ethiopia, namely Acacia nubica, A. seyal and A. horrida, were tested in laboratory conditions. Heat treatments had a positive effect on imbibition rates for all three species. The best treatment...