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Creator:: Aho, Paul E.
Abstract:: Infection courts for microorganisms invading white fir heartwood were determined to be primarily branches and basal wounds. Of 11 hymenomycetes isolated from infected trees, only four: Echinodontiurn tinctorium, Phellinus chrysoloma, Pholiota adiposa, and Hericium abietis were of major significance in terms of frequency of infection and damage caused. Two or...
Resource Type:: Dissertation
Full Text:: role of nitrogen in wood deterioration is summarized by Cowling and associates (Cowling and Merrill

Creator:: Motazedian, Iraj
Abstract:: As part of investigations to adapt a suitable grazing system in western Oregon, this research was designed to monitor the effects of defoliation treatments on dry matter production, forage quality, regrowth after defoliation, and species composition of a Lolium perenne Trifolium subterraneum pasture for three consecutive growing seasons from 1980...
Resource Type:: Dissertation
Full Text:: . Cowling and Locker (1970) found that ryegrass had a positive linear response to N fertilizer up to 330 kg

Creator:: Hennon, Paul Edward
Abstract:: Alaska-cedar (Chamaecvparis nootkatensIs (D. Don) Spach) is a valuable tree that is suffering from a serious decline and mortality of unknown cause throughout southeast Alaska. Epidemiological and pathological studies were initiated to determine if a pathogen is the primary cause of this problem. By examining old aerial photographs and by...
Resource Type:: Dissertation
Full Text:: . Ecology 63:1932-1948. American Forestry Association. 1955. These are the champs. Amer. For. 61(9):31-40

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