Index Catalog // ScholarsArchive@OSU

Survival and growth of Douglas-fir seed sources in the Hospital Tract rangewide source archive plantation

Creator:: Gamble, William E., Adams, W. T., Tappeiner, J. C. (John C.), and Oregon State University. Forest Research Laboratory
Abstract:: "In 1954, Dr. Helge Irgens-Moller initiated a rangewide collection of seed and seedlings of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco). Nearly 700 trees or stands were sampled in 10 western states, Canada, and Mexico. From 1957 to 1971, 639 of these collections were planted in the Hospital Tract Rangewide Source Archive...
Resource Type:: Technical Report
Full Text:: -fir from various altitudes and aspects in southern Oregon. Silvae Genetica 17:1��-151. HITCHCOCK

Patterns of genetic variation within and among breeding zones of Douglas-fir in southwest Oregon

Creator:: Loopstra, Carol Anne
Abstract:: Three hundred fifty families from 11 breeding zones in southwest Oregon were grown in a common garden in Corvallis, Oregon, and patterns of genetic variation for seed weight and six first-year seedling characteristics were described. For most characteristics, large differences among breeding zones were found along an east-west transect, with...
Resource Type:: Masters Thesis

Genetic variation in shoot-growth patterns of Douglas-fir populations from southwest Oregon

Creator:: Kaya, Zeki
Abstract:: This study had three objectives: (1) to teat the hypothesis that multiple flushing of the terminal shoot (intermittent growth pattern) in Douglas-fir seedlings (Pseudotsuca menziesii var. menziesii) has an adaptive significance, especially in inland populations from the drier regions in southwest Oregon; (2) to evaluate the genetic and adaptive consequences...
Resource Type:: Dissertation

The influence of stand structure and topography on growth, leaf area and efficiency of young Douglas-fir in the Oregon Coast Range

Creator:: Kaiser, Elisabeth H.
Abstract:: The relative influences of stand structure and topographic variation on volume growth, photosynthetic surface area, and stem growth efficiency were determined for six 17 to 23 year old well stocked stands in the central Oregon Coast Range. Plots were assigned to topographic classes (aspect, slope steepness, and slope position), by...
Resource Type:: Masters Thesis

Pruning young Douglas-fir (Pseudotsuga menziesii [mirb.] Franco) in a western Oregon agroforestry setting : changes in tree water relations and effects on forage production

Creator:: Withrow-Robinson, Bradford A.
Abstract:: There is renewed interest in agroforestry as a management strategy for marginal agricultural lands in western Oregon. Silvopastoral systems combine tree and forage production, which involve crops and practices familiar to the area. The objective of this study was to determine how management influences the physiology and ecological interactions of...
Resource Type:: Masters Thesis

The characteristics and dynamics of snags in Douglas-fir forests of the Oregon Coast Range

Creator:: Cline, Steven Paul
Abstract:: Snags, standing dead trees, are used by many species of wildlife. Despite the importance of snags their basic ecology remains unknown. Some forest management practices eliminate snags from the forest with a concomitant effect upon snag-dependent wildlife. My objective was to describe the density, spatial distribution, and physical character of...
Resource Type:: Masters Thesis

Some guidelines for planting 2-0 Douglas-fir in Oregon : a preliminary report

Creator:: Zaerr, Joe B., Lavender, Denis P., and Oregon State University. Forest Research Laboratory
Abstract:: The Dwight L. Phipps State Forest Nursery at Elkton annually supplies 22 million 2-0 Douglas-fir seedlings to Oregon land managers. Some managers report excellent success in planting, but others report failures, particularly when planting late in the season. In some instances poor survival seemed to be related to storage. Physiological...
Resource Type:: Technical Report
Full Text:: PLANTING 2-0 DOUGLAS-FIR IN OREGON A PRELIMINARY REPORT Joe. Zaerr Assistant Professor of Forest

Examining bias in estimating the response variable and assessing the effect of using alternative plot designs to measure predictor variables in diameter growth modeling

Creator:: Zumrawi, Abdel Azim M. A.
Abstract:: Diameter growth of Douglas-fir (Pseudotsuqa menziesii (Mirb.) Franco) estimated from increment cores was compared with that obtained from repeated measurements of tree diameter on permanent plots located in two Douglas-fir study areas in the central Coast Range of Oregon. Growth was measured for a 6-year period (1979- 1985). Diameter growth...
Resource Type:: Dissertation

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

Creator:: Neale, David B.
Resource Type:: Dissertation

Impact of insects on seed production in a Douglas-fir seed orchard in Oregon

Creator:: Dombrosky, Scott A.
Abstract:: The impact of various factors on seed production in a Douglas-fir (Pseudotsuga menziesii) seed orchard in western Oregon was examined by monitoring the fate of seeds in thirty cones, stratified into three crown levels, on each of ten trees during the 1984 growing season. Cones were examined monthly between April...
Resource Type:: Masters Thesis
Full Text:: -fir Seed Orchard in Oregon. Abstract approved:_ Redacted for Privacy /TiGothy D. Schowalter The

ScholarsArchive@OSU

Survival and growth of Douglas-fir seed sources in the Hospital Tract rangewide source archive plantation

Patterns of genetic variation within and among breeding zones of Douglas-fir in southwest Oregon

Genetic variation in shoot-growth patterns of Douglas-fir populations from southwest Oregon

The influence of stand structure and topography on growth, leaf area and efficiency of young Douglas-fir in the Oregon Coast Range

Pruning young Douglas-fir (Pseudotsuga menziesii [mirb.] Franco) in a western Oregon agroforestry setting : changes in tree water relations and effects on forage production

The characteristics and dynamics of snags in Douglas-fir forests of the Oregon Coast Range

Some guidelines for planting 2-0 Douglas-fir in Oregon : a preliminary report

Examining bias in estimating the response variable and assessing the effect of using alternative plot designs to measure predictor variables in diameter growth modeling

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

Impact of insects on seed production in a Douglas-fir seed orchard in Oregon

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