Published October 1989. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published March 1960. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published July 1954. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Since around 1923 Port-Orford-cedar (Chamaecyparis lawsoniana (A. Murray)
Parl.) has been affected by Phytophthora root disease caused by the virulent introduced
pathogen Phytophthora lateralis. A systematic resistance testing and breeding program
located at the USDA Forest Service Dorena Genetic Resource Center in Cottage Grove,
Oregon was initiated in 1997 with...
Since around 1923 Port-Orford-cedar (Chamaecyparis lawsoniana (A. Murray)
Parl.) has been affected by Phytophthora root disease caused by the virulent introduced
pathogen Phytophthora lateralis. A systematic resistance testing and breeding program
located at the USDA Forest Service Dorena Genetic Resource Center in Cottage Grove,
Oregon was initiated in 1997 with...
Full Text:
resistance breeding program
to infection and disease caused by species of Seiridium and Stigmina thujina