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  • Articles  (3)
  • symbiotic variation  (3)
  • Springer  (3)
  • 2005-2009
  • 1975-1979  (3)
  • 1950-1954
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (3)
Collection
  • Articles  (3)
Publisher
  • Springer  (3)
Years
  • 2005-2009
  • 1975-1979  (3)
  • 1950-1954
Year
Topic
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Euphytica 26 (1977), S. 377-383 
    ISSN: 1573-5060
    Keywords: Vicia faba ; field bean ; Rhizobium leguminosarum ; symbiotic variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Eight varieties of Vicia faba were examined in association with a standard strain of Rhizobium leguminosarum and also with the application of mineral nitrogen. Large differences in dry matter yield, nitrogen percentage and total nitrogen uptake were apparent between varieties and between rhizobium and mineral nitrogen treatments; the interaction was also significant. Genotypic differences in both the effectiveness of the symbiosis with this strain of rhizobium and the efficiency of utilization of nitrogen were thus demonstrated. The implications of this variability on the assessment of varieties and the possiblity of exploiting it by plant breeding techniques are discussed.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-5060
    Keywords: Vicia faba ; field bean ; Rhizobium leguminosarum ; symbiotic variation ; genetic variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Twenty isolates taken at random from indigenous populations of Rhizobium leguminosarum sampled near Aberystwyth were each inoculated into plants of a standard Vicia faba variety grown aseptically under conditions free of combined nitrogen. Plants in association with the individual rhizobium isolates exhibited large differences in dry matter yield, nitrogen content, efficiency of nitrogen utilization and date of first flower. The implications of these differences to the productivity and reliability of varieties of field beans are discussed.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1573-5060
    Keywords: Vicia faba ; field bean ; Rhizobium leguminosarum ; symbiotic variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Six Vicia faba populations were grown in all possible combinations with six Rhizobium leguminosarum strains in order to estimate the relative importance of the three genetic components of symbiotic variability. Additive genetic effects of host genotype and rhizobium genotype accounted for only 8.9% and 11.8% of the total phenotypic variation. Non-additive variation attriabutable to specific host genotype × rhizobium genotype interactions was by far the largest component of variation and accounted for 73.8% of phenotypic differences. Therefore the greatest improvement in symbiotic nitrogen fixation is likely to arise from simultaneous selection of both symbionts.
    Type of Medium: Electronic Resource
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