Zobrazeno 1 - 10
of 20
pro vyhledávání: '"D. B. Redfern"'
Publikováno v:
Forestry. 83:207-218
Summary Heterobasidion annosum causes serious root disease in conifers: pines are generally killed but other species, such as Sitka spruce, are more susceptible to decay. In the mid-twentieth century, much of the expanding forest estate in Britain wa
Publikováno v:
Forest Pathology. 35:213-229
Summary Interspecific interactions between fungi that colonize stumps of Picea sitchensis in Scotland were tested in dual cultures on Norkrans agar, spruce sawdust and in autoclaved blocks cut from roots. Isolates were ranked according to competitive
Autor:
G. A. Macaskill, D. B. Redfern
Publikováno v:
Forest Pathology. 33:39-52
Summary The susceptibility of Sitka spruce (Picea sitchensis) and grand fir (Abies grandis) to decay by Heterobasidion annosum was compared on a site with a previous history of serious disease. The incidence of decay 15–16 years after planting was
Publikováno v:
Forestry. 73:457-465
Summary Picea sitchensis stumps were inoculated with Heterobasidion annosum basidiospores either immediately or 24 h, 7 days or 28 days after cutting, in order to determine the length of time they remained susceptible to infection. Control stumps wer
Publikováno v:
Scandinavian Journal of Forest Research. 12:41-49
The colonization of Sitka spruce stumps by Heterobasidion annosum, and the population structure of colonies, was determined 2–3 yrs after inoculation with a 10‐fold dilution series of basidiospore suspensions. Artificially inoculated stumps were
Publikováno v:
Plant Pathology. 43:907-912
Heterobasidion annosum was isolated from colonized parts of Sitka spruce stumps in Dundeugh Forest, Scotland and amabilis fir stumps in River Jordan, Vancouver Island, British Columbia. Isolates from each stump were paired in all combinations on malt
Autor:
D. B. Redfern, Duncan J. Morrison
Publikováno v:
Plant Pathology. 43:897-906
The extent of colonization by Heterobasidion annosum was measured in 1989 in Sitka spruce stumps that had been inoculated with basidiospores in 1981 and assessed for infection in 1983. Only stumps that had infection in the sapwood in 1983 contained t
Autor:
D. B. Redfern
Publikováno v:
Forest Pathology. 23:218-235
In an inoculation experiment to test the effect of wood moisture content on infection of Sitka spruce (Picea sitchensis) stumps by basidiospores of Heterobasidion annosum, exposure to high rainfall increased infection in the heartwood and reduced sap
Autor:
D. B. Redfern
Publikováno v:
Plant Pathology. 40:483-486
The widespread occurrence in Scotland of M. proteus. which was previously regarded as rare, is reported. It is a common colonist of Sitka spruce stumps which merits consideration as a potential biological control agent against the tree-root pathogen
Autor:
D. B. Redfern
Publikováno v:
Forestry. 69:285-285