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Filtering by: Subject Douglas fir -- Testing Advisor Adams, W. Thomas Decade 1980-1989

Effects of seed characters and competitive environment on two-year performance of open-pollinated Douglas-fir families

Creator:

St. Clair, John Bradley

Abstract:

Ungerminated seed and recent germinants from 39 open-pollinated Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) families were planted in each of three competitive environments in order to determine the degree to which growth differences among families are influenced by competitive environment, seed weight, and date of emergence. The three competitive...

Resource Type:

Dissertation
Seed set and the proportion of progeny due to self-fertilization in a Douglas-fir seed orchard

Creator:

Omi, Steven Katsu

Abstract:

The effects of clonal variability, crown position of cones, and top-pruning of ramets to reduce height growth, on 1) the proportion of viable self-fertilized progeny (s) and 2) the proportion of filled seeds (PF), were investigated in a 20 year-old Douglas-fir (Pseudotsuga menziesii [Mirb.1 Franco) seed orchard. Cones were collected...

Resource Type:

Masters Thesis
Population genetic structure of the Douglas-fir shelterwood regeneration system in southwest Oregon

Creator:

Neale, David B.

Resource Type:

Dissertation
The influence of distance and floral phenology on pollen gene flow and mating system patterns in a coastal Douglas-fir seed orchard

Creator:

Erickson, Vicky J., 1955-

Resource Type:

Masters Thesis