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  • Articles: DFG German National Licenses  (2)
  • Nodulation  (2)
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  • Articles: DFG German National Licenses  (2)
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Years
  • 1
    ISSN: 1573-5036
    Keywords: Aluminium toxicity ; Nodulation ; Stylosanthes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Effects of three solution aluminium concentrations (0, 25 and 100 μM) on nodulation ofStylosanthes hamata andStylosanthes scabra inoculated with Rhizobium CB 756 were studied using nutrient solution culture. Aluminium strongly affected nodulation by delaying nodule appearance and reducing the number and dry weight of nodules in both species. The effects of aluminium toxicity on nodulation were more pronounced inStylosanthes scabra than inStylosanthes hamata. These effects of aluminium on nodulation occurred before any significant effect of aluminium on top growth, root growth or root elongation. A plant transfer experiment suggested that aluminium interfered with root infection and/or nodule initiation in both species. The detrimental effect of aluminium on nodulation appeared to be associated with a reduction in lateral root density, thus decreasing the potential number of sites for root infection and nodule formation.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    ISSN: 1573-5036
    Keywords: Aluminium toxicity ; Nitrogen fixation ; Nodulation ; Stylosanthes hamata ; Stylosanthes humilis ; Stylosanthes scabra
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Effects of three solution aluminium concentrations (0, 25, and 100μM) on nitrogen fixation by well-nodulated plants ofStylosanthes hamata, Stylosanthes humilis andStylosanthes scabra are reported. Plants were inoculated with Rhizobium CB756 and grown for 21 days in an aluminium-free nutrient solution at pH 5.3 before imposition of the aluminium treatments. Nitrogen fixation was measured both by the increase in total nitrogen content of the plants and acetylene reduction in roots of plants harvested at 10 and 20 days after imposition of the aluminium treatments. Solution aluminium concentrations as high as 100μM, had no detrimental effect on nitrogen fixation in any species.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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