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  • 1980-1984  (3)
  • 1920-1924
  • 1915-1919
  • 1905-1909
  • Nursery  (2)
  • Community matrix  (1)
  • 1
    Digitale Medien
    Digitale Medien
    The community matrix in three species community models (1982)
    Springer
    Journal of mathematical biology 16 (1982), S. 25-31 
    Details
    ISSN: 1432-1416
    Schlagwort(e): Stability ; Community matrix ; Lotka-Volterra models
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Mathematik
    Notizen: Abstract The explicit function of the community matrix of a three dimensional Lotka-Volterra model is delineated by a set of necessary and sufficient conditions for a positive equilibrium to be asymptotically stable. In the special case that the community matrix is quasi weakly diagonally dominant, it is shown that a positive determinant for the community matrix is not only necessary but is also sufficient for stability. The results are specific to three dimensional models and do not extend to communities of dimension greater than three.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00275158
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Effect of mycorrhizal inocula on the growth of Sitka spruce seedlings in different soils (1983)
    Springer
    Plant and soil 71 (1983), S. 313-317 
    Details
    ISSN: 1573-5036
    Schlagwort(e): Forest ; Glasshouse conditions ; Mycorrhizal fungi ; Nursery ; Seedling response ; Sitka spruce
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary Different mycorrhizal fungi were tested for their effectiveness in promoting growth of Sitka spruce seedlings, in two contrasting soils, in a glasshouse pot experiment. In nursery soil,Laccaria amethystina significantly improved growth of seedlings in comparison toL. laccata. Seedlings inoculated with a forest isolate ofThelephora terrestris were significantly larger than those inoculated with a nursery isolate when grown in forest soil. The effectiveness ofComplexipes moniliformis in forest soil was poor in comparison to other mycorrhizal fungi. Strains aswell as species of mycorrhizal fungi affect seedling growth differently. These effects are further influenced by soil type.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02182669
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Changes in the mycorrhizal status of Sitka spruce following outplanting (1983)
    Springer
    Plant and soil 71 (1983), S. 319-323 
    Details
    ISSN: 1573-5036
    Schlagwort(e): E-strain ; Forest ; Nursery ; Replacement ; Sitka spruce ; Thelephora terrestris
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary Occurrence of mycorrhizal types in 4 forest sites and 4 nurseries was determined by mycorrhizal morphology. In total 25 distinct mycorrhizas were found, of which 14 were formed by identifiable fungi. The frequency of occurrence of the ‘E-strain’ fungus, the dominant nursery mycorrhizal fungus, decreases with the age of the outplanted seedling. Some mycorrhizal types were found in all the mature forest sites examined. The fungusT. terrestris was found on all age groups of Sitka spruce studied.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02182670
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