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Filtering by: Subject Douglas fir -- Fertilizers Advisor Linderman, Robert G. Subject Douglas fir -- Diseases and pests

The role of ethylene in ectomycorrhiza formation and Fusarium infection of Douglas fir roots

Creator:

Graham, James Herbert

Abstract:

The ectomycorrhizal fungi Cenococcum geophilum, Hebeloma crustuliniforme and Laccaria laccata produced ethylene in vitro in modified Melin-Norkrans liquid medium only if amended with 2.5 to 10 mM methionine; Pisolithus tinctorius failed to produce ethylene unless the cultures were renewed with fresh methionine-amended medium prior to ethylene assay. An additional 19...

Resource Type:

Dissertation

Full Text:

Fusarium Infection of Douglas-Fir Roots AN ABSTRACT OF THE THESIS OF James Herbert Graham, Jr. for the
Biology and control of Fusarium spp. on Douglas-fir (Pseudotsuga menziesii)

Creator:

Hoefnagels, Mariëlle Henriette, 1965-

Abstract:

Fusarium spp. are among the most important pathogens of Douglas-fir (Pseudotsuga menziesii) seedlings in bareroot nurseries. Currently the most effective disease control method is soil fumigation with methyl bromide. As methyl bromide is phased out, however, other disease management strategies may become more important. We explored two alternative approaches to...

Resource Type:

Dissertation

Full Text:

Biology and control of Fusarium spp. on Douglas-fir