Articles by Keyword: Black Bass

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  1. Invasion status of Florida bass <em>Micropterus floridanus</em> (Lesueur, 1822) in South Africa

    Invasion status of Florida bass <em>Micropterus floridanus</em> (Lesueur, 1822) in South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Largemouth bass Micropterus salmoides are a popular North American angling species that was introduced into South Africa in 1928. To enhance the largemouth bass fisheries, Florida bass Micropterus floridanus were introduced into KwaZulu Natal, South Africa, in 1980. Knowledge on...
  2. Die invloed van swartpunt by gars (<em>Hordeum distichon</em>) op ontkieming en α-amilase-aktiwiteit

    Die invloed van swartpunt by gars (<em>Hordeum distichon</em>) op ontkieming en α-amilase-aktiwiteit

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Gesonde garssaad en swartpuntgarssaad vanaf verskillende lokaliteite is vergelyk. Die ontkiemingsenergie van gesonde saad was na een maand beduidend beter as die van swartpuntsaad. Na 'n opbergingperiode van twee tot drie maande het geen verskille in ontkiemingsenergie en -kapasiteit meer...
  3. Theaflavin values of various tea clones and selections grown in the northern Transvaal

    Theaflavin values of various tea clones and selections grown in the northern Transvaal

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Different grades of black tea of several clones and selections from a tea estate in the northern Transvaal were tested for theaflavin (TF) content. In the pekoe dust (PD) grade there were no significant differences in TF values. In the...
  4. The association between residual chlorophyll and grassy taste in black tea

    The association between residual chlorophyll and grassy taste in black tea

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The ‘grassy’ taste in some South African and Central African black teas is not up to tea tasters' and buyers' standards. It has been shown by a number of researchers that this taste is associated with volatiles in the tea...
  5. Pedogenic differences between two adjacent basalt-derived soil profiles 1. Textural and chemical characteristics

    Pedogenic differences between two adjacent basalt-derived soil profiles 1. Textural and chemical characteristics

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Eleven soil samples derived from a black vertisol (Arcadia form) and a red alfisol (Shortlands form) were investigated by means of X-ray fluorescence as well as standard soil chemical and physical analyses. The profiles developed from Jurassic basalt under identical...
  6. Resistance in new groundnut breeding lines to black pod rot caused by <em>Chalara elegans</em>

    Resistance in new groundnut breeding lines to black pod rot caused by <em>Chalara elegans</em>

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Black pod rot or black hull of groundnut caused by the fungus Chalara elegans results in severe damage to groundnut pods and kernels in South Africa. The disease is managed most effectively by planting resistant varieties. The commercial varieties currently...
  7. Control of black wattle (<em>Acacia mearnsii</em> De Wild.) seedlings with Garlon herbicide applied by backpack mistblower

    Control of black wattle (<em>Acacia mearnsii</em> De Wild.) seedlings with Garlon herbicide applied by backpack mistblower

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Black wattle (Acacia mearnsii De Wild) has great economic value for South Africa, but also poses a tremendous threat to our natural ecosystems once it “escapes” from plantations into the surrounding grassland and watercourses, often forming dense, impenetrable thickets that...
  8. FRESHWATER FISH CONSERVATION IN SOUTH AFRICA: A RISING TIDE

    FRESHWATER FISH CONSERVATION IN SOUTH AFRICA: A RISING TIDE

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Attitudes towards the conservation of South African indigenous freshwater fishes have changed radically. Initially alien sport angling species were the focus of fisheries interest and local fishes were considered worthless. Gradually, in response to the work of collectors, taxonomists and...
  9. Effects of fire, bruchid beetles and soil type on germination and seedling establishment of <em>Acacia drepanolobium</em>

    Effects of fire, bruchid beetles and soil type on germination and seedling establishment of <em>Acacia drepanolobium</em>

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The effects of fire, bruchid seed beetles and soil type on the germination and seedling establishment of Acacia drepanolobium were experimentally investigated. Seeds subjected to three seed treatments (bruchid damaged, bruchid-free burnt, and bruchid-free unburned) were germinated in three different...
  10. Estimation of grazing by herbivores from analysis of dung

    Estimation of grazing by herbivores from analysis of dung

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Two phenolic acids, p-coumaric and ferulic acid, can be liberated from grass material by mild alkaline hydrolysis and resolved by thin layer chromatography (TLC). The two acids can also be recovered from the dung of various herbivores and their presence...