Articles by Keyword: Germination Rate

Search results for Germination Rate

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  1. Germination rate of maize (<em>Zea mays</em> L.) kernels. I. Relationships with kernel properties and water uptake

    Germination rate of maize (<em>Zea mays</em> L.) kernels. I. Relationships with kernel properties and water uptake

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Relationships were sought between germination rate and various kernel variables of 12 freshly harvested, undeteriorated seed lots of maize. Germination rate was positively correlated with water content of kernels at all sampling times up to 30 h of incubation and...
  2. Germination rate of maize (<em>Zea mays</em> L.) kernels. II. Relationships with respiration rate and adenosine triphosphate content

    Germination rate of maize (<em>Zea mays</em> L.) kernels. II. Relationships with respiration rate and adenosine triphosphate content

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Germination rate of freshly harvested, undeteriorated seed lots of maize was found to be positively correlated with rate of oxygen uptake of kernels and adenosine triphosphate (ATP) content of embryos, at 6 and 12 h of incubation. Respiration rate was...
  3. Invloed van omgewingsfaktore en opbergingstydperk op kieming van benfurakarb-behandelde mieliesaad (<em>Zea mays</em> L.)

    Invloed van omgewingsfaktore en opbergingstydperk op kieming van benfurakarb-behandelde mieliesaad (<em>Zea mays</em> L.)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die invloed van benfurakarb saadbehandeling op kieming by mieliesaad is onder gunstige en suboptimale temperatuur sowel as na opberging en in waterstrestoestande ondersoek. Konsentrasies van 1 350 en 1 800 g a.b. 100 kg−1 saadmassa en opberging na behandeling lei...
  4. Role of Eucalypt Plantations in Timber Supply and Forest Conservation in Sub-Saharan Africa

    Item type: Journal Article • Journal: South African Forestry Journal
    The role of eucalypt plantations in timber supply and forest conservation in Sub-Saharan Africa was investigated. The annual destruction of 11,5 million ha of tropical forest is highlighted, the various causes indicated and the controversy whether fast-growing plantations and woodlots...
  5. The Response of <em>Ocotea bullata</em> (Lauraceae) to Flooded Conditions

    Item type: Journal Article • Journal: South African Forestry Journal
    The response of Ocotea bullata (Lauraceae), stinkwood, grown under a range of flooded conditions, was studied. Flooding results in chlorosis and shedding of leaves and may end in death if continued for prolonged periods. Die-back is the result of several...
  6. The Blackwood Group System: its relevance for sustainable forest management in the southern Cape

    Item type: Journal Article • Journal: South African Forestry Journal
    The invasion status of Australian blackwood, Acacia melanoxylon, is assessed against its value as a commercial tree in the southern Cape forests. The species was introduced from Australian rain forests and planted extensively in the southern Cape forests since 1909...
  7. Effects of season of burn on shrub survival, regeneration and structure in the Natal Drakensberg

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Four shrub species which tend to invade unburnt grassland were studied in field‐burning trials at Cathedral Peak in the Natal Drakensberg.
  8. Refinement of a model describing forage production, animal production and profitability as a function of bush density in the false thornveld of the eastern cape

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    An existing model describing the influence of Aeacia karroo density on forage production, animal production and profitability is reviewed and amended to introduce recent research results.
  9. Evidence of a germination inhibitor in senescent soybean pod walls

    Evidence of a germination inhibitor in senescent soybean pod walls

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Water based pod extracts of the pod wall material of four soybean cultivars were found to reduce the germination rate of mustard (Sinapis alba L.) seeds. Highly significant differences were also observed in this respect between the different pod extracts.
  10. Evaluation of veld potential in east griqualand using beef cattle under two grazing management systems

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Beef production from veld, in the short term, was found to be greater under a continuous grazing system than under a rotational grazing system. Average daily gains decreased from a maximum in late‐spring and the highest three‐year mean value was...