c.1968. Pole steps were placed in select ponderosa pine trees to facilitate tree breeding activities. Briggs Valley, Siskiyou National Forest, Oregon.

Pole steps were placed in select ponderosa pine trees to facilitate tree breeding activities. Briggs Valley, Siskiyou National Forest, Oregon.

 

Photo and caption by: Jerry Barnes

Date: c.1968

 

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 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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