Published March 1894. 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 September 1968. 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 January 1973. 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
Revised February 1974. 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 April 1917. 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:
December 18, 2008.
Title: Developing Techniques for Evaluating the Susceptibility of Root-disease
1. Rotbusters Field Survey.
Kokanee and Basin were the only varieties sampled in 2005. There was a significant relationship between radicle rot severity and gross yield for Kokanee but not for Basin.
In previous years, we have shown that for Jubilee, approximately 3 tons of gross yield are...
Summary
Irrigation effects on root rot and yield
Reducing irrigation during the first 6 weeks after planting reduced root rot of sweet corn at midseason and at harvest, consistent with findings of the past two years.
Reducing the early season irrigation level increased yield of Jubilee by 20%...
Objectives:
1. Breed Bush Blue Lake green bean varieties with high economic yield and improved plant architecture.
2. Improve pod characteristics including straightness, color, smoothness, texture, flavor and quality retention, and combine with delayed seed size development.
3. Incorporate white mold resistance and improve root rot tolerance.
4. Develop a...
Objective: to evaluate the impacts of N availability, microbial activity, and root health on corn productivity and yield in high biomass cover crop systems
Three trials at two locations were conducted to evaluate sweet corn hybrids for performance under root rot conditions. While both sugar/se and supersweet sweet corn hybrids were evaluated, the emphasis was again on identifying supersweet hybrids with improved tolerance to root rot.
Weed management in table beets has improved with the recent registration of Dual Magnum. Hairy nightshade control continues to be a challenge, however. Nortron (ethofumesate) herbicide is now labeled for use and will help with nightshade control, but there is very little experience in the PNW on the best use...
Objective 1: Evaluation of commercial sweet corn varieties and inbred germplasm in small plots for susceptibility to seed rot/damping-off as well as root, stalk, and crown rot. Objective 2: Evaluation of microbial and chemical treatments for suppression of sweet corn seed rot/damping-off, root rot, and crown rot. Objective 3: Cooperate...