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  • 1
    Electronic Resource
    Electronic Resource
    Efficacy of Trichoderma harzianum as a biological control of Fusarium oxysporum in container-grown Douglas-fir seedlings (1998)
    Springer
    New forests 15 (1998), S. 11-21 
    Details
    ISSN: 1573-5095
    Keywords: seedling growth ; seedling infection ; germinants ; virulence ; root disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Inoculating a soilless medium with encapsulated Trichoderma harzianum did not affect any aspect of Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) seed germination or subsequent growth. Results of inoculating medium with a known pathogenic isolate of Fusarium oxysporum alone, or concurrently with T. harzianum, were the same: high levels of damping-off, low amounts of hypocotyl and root disease in midsummer, and significant reductions in height growth. When seedling roots grew through T. harzianum-inoculated medium before growing into a mixture of T. harzianum-F. oxysporum-inoculated medium, mortality was reduced about 50%. Although contamination by resident Fusarium occurred, subsequent root colonization was significantly reduced in T. harzianum-amended growing medium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006512519895
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Gliocladium virens in an alginate prill ineffective as a biological control of Fusarium root disease in container-grown Douglas-fir (1996)
    Springer
    New forests 12 (1996), S. 113-124 
    Details
    ISSN: 1573-5095
    Keywords: Fusarium oxysporum ; Fusarium proliferatum ; seedling growth ; seedling infection ; germinants ; virulence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract An alginate prill formulation of Gliocladium virens (GL-21) was added as a top-dressings (54 g per m2) or incorporated into medium (1.2 kg per m3) used to grow Douglas-fir seedlings in styrofoam containers. Seedlings in the top-dress treatment were similar to control seedlings; infection and colonization by naturally-occurring Fusarium was unaffected by treatment. Incorporated G. virens reduced seedling growth and increased occurrence and colonization intensity of Fusarium. In a laboratory experiment, inoculating Douglas-fir seedlings with G. virens (10% w/w) prior to inoculation with Fusarium increased survival time when compared to concurrent inoculations of fungi.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00036624
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Interactions among Streptomyces griseoviridis, Fusarium root disease, and Douglas-fir seedlings (1998)
    Springer
    New forests 15 (1998), S. 181-191 
    Details
    ISSN: 1573-5095
    Keywords: germinants ; root disease ; seedling growth ; seedling infection ; virulence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In a laboratory experiment, Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) seedlings had similar disease ratings when treated with known Fusarium isolates or concurrently with Fusarium and Streptomyces griseoviridis. When tested under greenhouse conditions and against known Fusarium isolates, more seeds germinated and survived as seedlings in control medium than survived in S. griseoviridis-inoculated medium or when S. griseoviridis and Fusarium were added together. A series of applications of S. griseoviridis as a soil drench to a crop of Douglas-fir seedlings did not affect seedling morphology. However, against resident levels of Fusarium, S. griseoviridis reduced Fusarium infection by 16%, but increased infection by F. oxysporum and F. proliferatum, two potentially pathogenic fungi, by 40%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006502324840
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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