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Genetic variation in Douglas-fir : a 20-year test of provenances in eastern Nebraska

Creator:: Van Haverbeke, David F., 1928-
Abstract:: Twenty-year-old Douglas-fir trees in provenances from Arizona, New Mexico, and southern Colorado survived better and grew taller; but incurred more winter injury in eastern Nebraska than trees from provenances from northern Colorado, southern and western Montana, northern Idaho, Canada, and eastern Washington. However, surviving trees from Pacific Coast, and northern...
Resource Type:: Technical Report
Full Text:: Report RM -141 Genetic Variation in Douglas -fir: A 20 -year Test of Provenances in Eastern Nebraska

Physiological and biochemical studies of stratified Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seeds after redrying, storage, and subsequent germination

Creator:: Malavasi, Marlene de Matos
Abstract:: The physiological and biochemical responses of Douglas-fir seeds to stratification, redrying, storage and subsequent germination were determined. Stratification increased seed vigor, embryo and gametophyte phosphorylative efficiency and RNA synthetic ability. Redrying seems to increase the rate of enthryonic nucleic acid synthesis, speed of germination and seedling vigor. ATP, total adenosine...
Resource Type:: Dissertation

Better Douglas fir forests from better seed

Creator:: Isaac, Leo A. (Leo Anthony), 1892-1970
Abstract:: Gerald W. Williams Collection. Agnes H. Anderson research publications.
Resource Type:: Book

Interaction of seed source, competition and fertility on planted Douglas-fir (Pseudotstuga menziesii [Mirb.] Franco)

Creator:: Roth, Brian Edward
Abstract:: The main objective of this study was to evaluate the interaction between herbaceous competition, fertility, and seed source on Douglas-fir survival and growth. A secondary objective was to evaluate the effect of these various factors on the production of lammas shoots and the selectivity of deer browse. Finally, the role...
Resource Type:: Masters Thesis

The effects of inbreeding and supplemental mass pollination upon seed yields in a Douglas-fir seedling seed orchard

Creator:: Cress, Daniel W.
Abstract:: Effects of four inbreeding levels (F = 0, 0.125, 0.25, 0.5) and two supplemental mass pollination (SMP) methods (agitation of naturally shedding pollen with "air blaster" and pollen application from large "pollen wand" atomizer) were evaluated on seed of trees from eleven full-sibling Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) families in...
Resource Type:: Masters Thesis

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

Spot seeding Douglas-fir in the Pacific Northwest using a Finnish shelter seeding method

Creator:: Wolff, Scott
Abstract:: One of the largest problems facing the forester in the Pacific Northwest today is the economical, rapid rehabilitation of cut-over lands. Many of these cut-over lands are planted to Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco]. Previously, both aerial and spot seeding techniques have been evaluated for their efficiency in Douglas-fir regeneration....
Resource Type:: Masters Thesis

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:: Impact of insects on seed production in a Douglas-fir seed

Genetic variation and phenotypic stability among three elevational sources of coastal Douglas-fir from southwest Oregon

Creator:: Mangold, Robert
Abstract:: This study had three objectives: (1) to determine the degree to which within-source genetic variation and genetic correlations differ among elevational sources of Douglas-fir [Pseudotsuga menziesii (Mirb). Franco var. menziesii]; (2) to ascertain the degree to which phenotypic stability differs among and within elevational sources; and (3) to compare the...
Resource Type:: Dissertation

Effect of seedbeds on germination and survival of Douglas-fir

Creator:: Hermann, Richard K., Chilcote, William W., and Oregon State University. Forest Research Laboratory
Abstract:: Germination and survival of Douglas-fir on seedbeds of unburned, lightly burned, and severely burned soil, charcoal, litter, and sawdust, exposed to 100, 75, and 25 percent of full light, were studied on a south-facing clearcutting in the Coast range of Oregon. Irrespective of exposure to light, germination was best on...
Resource Type:: Technical Report
Full Text:: newly cut logs of Douglas-fir. The other seed- bed materials were collected from a nearby area recently

ScholarsArchive@OSU

Genetic variation in Douglas-fir : a 20-year test of provenances in eastern Nebraska

Physiological and biochemical studies of stratified Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seeds after redrying, storage, and subsequent germination

Better Douglas fir forests from better seed

Interaction of seed source, competition and fertility on planted Douglas-fir (Pseudotstuga menziesii [Mirb.] Franco)

The effects of inbreeding and supplemental mass pollination upon seed yields in a Douglas-fir seedling seed orchard

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

Spot seeding Douglas-fir in the Pacific Northwest using a Finnish shelter seeding method

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

Genetic variation and phenotypic stability among three elevational sources of coastal Douglas-fir from southwest Oregon

Effect of seedbeds on germination and survival of Douglas-fir

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