c.2001. This dead limb (flag) is the result of a cone that reverted to a vegetative bud and died when the cone base (penduncle) separated in the second year. Dorena Genetic Resource Center, Cottage Grove, Oregon.

This dead limb (flag) is the result of a cone that reverted to a vegetative bud and died when the cone base (penduncle) separated in the second year. Dorena Genetic Resource Center, Cottage Grove, Oregon.

 

Photo and caption by: Jerry Barnes

Date: c.2001

 

Credit: USDA Forest Service, Region 6, Dorena Genetic Resource Center.

Source: Gerald Barnes collection; courtesy Richard Sniezko, Cottage Grove, Oregon.

 

Dorena Genetic Resource Center (DGRC) is the USDA Forest Service's regional service center for genetics in the Pacific Northwest Region. Dorena houses disease resistance breeding programs for five-needled pines and Port-Orford-cedar, a native plant development program, and the National Tree Climbing Program.

 

To learn more about the history of the DGRC, see: www.fs.usda.gov/detail/r6/landmanagement/resourcemanageme...

 

For additional photos of the DGRC program, see: www.fs.usda.gov/detail/r6/landmanagement/resourcemanageme...

 

Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth

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