Zobrazeno 1 - 10
of 28
pro vyhledávání: '"J. J. Worrall"'
Publikováno v:
Canadian Journal of Forest Research. 29:347-355
Gypsy moth (Lymantria dispar L.) and Armillaria root rot interact to cause extensive mortality in eastern oak forests. Defoliation by gypsy moth weakens trees and increases their susceptibility to Armillaria root rot. Partial cutting prior to defolia
Publikováno v:
Canadian Journal of Microbiology. 37:869-874
Conditions leading to optimal development of soft rot of wood were studied in vitro. Rates of weight loss generally remained more or less constant for 12 weeks, after which they decreased. Use of Petri dishes as decay chambers, saturation of blocks w
Publikováno v:
Wood Science and Technology. 28
A new type of soft rot of southern pine longitudinal tracheids is described. In this type, soft-rot cavities form by diffuse degradation of the S2 cell wall layer by hyphae growing within the cell wall. Cavity formation is diffuse and irregular as op
Autor:
J. J. Worrall, J. Ginns
Publikováno v:
Kew Bulletin. 54:771
Summary. Previously known from only three collections made in Sweden and Siberia, the apparently rare Athelia sibirica (Jilich) J. Erikss. & Ryvarden (Basidiomycota: Atheliales), is described and illustrated from an Alaskan collection. The bisterigma
Autor:
J. T. Blodgett, J. J. Worrall
Publikováno v:
Plant Disease. 76:170
Autor:
J. J. Worrall, J. T. Blodgett
Publikováno v:
Plant Disease. 76:166
Publikováno v:
Microbiology. 132:2527-2533
SUMMARY: Ethanol and other substances that induce rhizomorphs in Armillaria spp. also induced laccase formation. In a range of isolates rhizomorph production and laccase activities were positively correlated. Laccase was first detectable just before
Publikováno v:
British Journal of Audiology. 10:33-40
The hearing aids used by children attending a Grammar School for the Deaf were acoustically tested with the controls set as they were used for conversational speech. The gain and maximum acoustic output of the aids has been measured and shown to vary
Autor:
J. R. Parmeter, J. J. Worrall
Publikováno v:
Forest Pathology. 12:432-441
A bacterium associated with wetwood of white fir did not cause wetwood in inoculated trees, and wetwood formed while external water was excluded. Wetwood formed in response to various injuries, suggesting that it is a host response to parenchyma deat
Autor:
J. J. Worrall, T. C. Harrington
Publikováno v:
Phytopathology. 78:676