Genecology of Douglas-fir from southwestern Oregon

Graduation date: 1981This thesis is divided into three chapters. For all chapters, the experiments described deal with the responses of all or a subset\ud of 72 wind-pollinated Douglas-fir families from 36 different locations in southwestern Oregon. Wind-pollinated seed was collected from each of two trees at each of the 36 locations. The 36 locations were chosen to give a broad regional sample of southwestern Oregon. The two families were considered a sample of the Douglas-fir population present at each location. All experiments described herein were aimed at defining and patterning the genetic variation among these families and populations as it occurred In various test environments