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Filtering by: Subject Douglas fir -- Thinning Committee Member Boyle, Jim Decade 1990-1999

Genetic variation of wood density components in coastal Douglas- fir and their relationships to growth rhythm

Creator:

Vargas-Hernandez, Jesus

Abstract:

Overall wood density is a complex trait resulting from the interaction of three components: average earlywood density, average latewood density, and latewood proportion. In order to better understand the genetic control of wood density in juvenile Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), and to assess the utility of information on its...

Resource Type:

Dissertation
Factors influencing growth of young Douglas-fir and red alder in the Oregon Coast Range : interference, nitrogen availability, and animal damage

Creator:

Fuentes-Rodríquez, Laura Angélica

Abstract:

Red alder (Alnus rubra Bong.) is a common associate and a potentially severe competitor of Douglas-fir (Pseudotsuga menziesii var. menziesii [Mirb.] Franco) in the Oregon Coast Range. However, because it fixes nitrogen and increases rates of soil nutrient cycling, red alder has the potential to benefit Douglas-fir. The objective of...

Resource Type:

Masters Thesis