RNGR.net is sponsored by the USDA Forest Service and Southern Regional Extension Forestry and is a colloborative effort between these two agencies.

U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Skip to content. | Skip to navigation

Home → Publications → Tree Improvement and Genetics → Northeastern Forest Tree Improvement Conference → 9th Northeastern Forest Tree Improvement Conference (1961) → Preliminary Estimates of the Genetic Structure of Two Sympatric Populations of Birches as Determined By Random Effects and Natural Selection