USDA Forest Service

Pacific Southwest Research Station


Pacific Southwest Research Station
800 Buchanan Street
West Annex Building
Albany, CA 94710-0011

(510) 559-6300

United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.

Programs and Projects

Institute of Forest Genetics


  • Slow rusting resistance (SRR)
    • SRR is a composite term for several independent mechanisms of partial resistance, which individually or collectively reduce the rate of infection and mortality.
  • Ontogenetic resistance (OGR)
    • OGR is a kind of resistance that increases with age. The inheritance and age of onset are unknown, but it is genetype specific.
Last Modified: Mar 28, 2013 02:56:32 PM