Index Catalog // ScholarsArchive@OSU

Pollen contamination trends in a maturing Douglas-fir seed orchard

Creator:: Adams, W. T., Hipkins, Valerie D., Burczyk, J., and Randall, W. K.
Abstract:: Pollen contamination was investigated in one block (block 4) of a 10-block Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seed orchard complex in western Oregon. Blocks (25 clones each) represent different breeding zones; thus, contaminant pollen sources not only included the adjacent natural stand of Douglas-fir, but also other blocks within the...
Resource Type:: Article
Full Text:: Service, Siuslaw National Forest, P.O. Box 1148, Corvallis, OR 97330, U.S.A. 1 Paper 3157 of the Forest

Within-stem variation of respiration in Pseudotsuga menziesii (Douglas-fir) trees

Creator:: Pruyn, Michele L., Gartner, Barbara L., and Harmon, Mark E.
Abstract:: • A technique for measuring in vitro respiration was investigated to understand why rates were higher than those reported in vivo and to elucidate trends within mature Pseudotsuga menziesii (Douglas‐fir) trees. • Extracted increment cores were divided into 3–4 radial depths and a gas chromatograph was used to compare respiration...
Resource Type:: Article
Full Text:: www.newphytologist.com 359 Research Blackwell Science Ltd Within-stem variation of respiration in

The estimation and significance of sapwood basal area in young Douglas-fir stands

Creator:: Dolan, Linda Sutliff
Abstract:: The relationship of sapwood basal area to basal area was examined on stands of young-growth Douglas-fir. Through non-destructive sampling, sapwood basal area was quantified on four different thinning intensities and one control (unthinned) treatment. Emphasis was on testing a sampling method and evaluating variations in the sapwood component as a...
Resource Type:: Masters Thesis

Variation in the foliar nutrient status of several Douglas-fir provenances

Creator:: Stevens, Roderick D.
Abstract:: From a preliminary 1969 foliar analysis, eight provenances were chosen from the sixteen included in a region-wide, reciprocal Doulgas-fir provenance study for further study of variation in foliar nutrition. In the fall of 1969 separate foliar samples were collected from ten trees per provenance at each of ten plantations ranging...
Resource Type:: Dissertation

Environmental and physiological control of stomates in Douglas-fir and other species

Creator:: Johnson, Jon Dale
Abstract:: This research dealt with the direct environmental influence of atmospheric vapor pressure on stomates of Pseudotsuga menziesii, Picea engelniannii, and Fragaria X ananassa, and the indirect physiological control of stomates by abscisic acid in Pseudotsuga menziesii. Two ventilated porometers (diffusion and steady-state) were compared on four broadleaf and five coniferous...
Resource Type:: Dissertation

Starch content and crown growth in two Douglas-fir stands

Creator:: Kilpatrick, Kran James
Abstract:: The objectives of this investigation were to measure the seasonal and diurnal variations of starch as well as to relate these variations to growth of the trees. This study also microscopically examined the needles to determine if starch exists in granular form in Douglas-fir. The objectives were designed to gain...
Resource Type:: Masters Thesis
Full Text:: levels in young Douglas-fir trees in stands, since the only previous research on starch in Douglas-fir

Geographic and seasonal variation in photosynthetic efficiency and capacity of Rocky Mountain Douglas-fir, Pseudotsuga menziesii var. glauca

Creator:: Pope, Walter William
Abstract:: Net photosynthesis was measured for photosynthetic light efficiency and capacity on two-year-old plants from eight different seed sources in three measurement periods. The measurement periods corresponded to the physiological periods 1) prior to bud swelling, 2) after needle elongation, and 3) predormancy. Measurement period differences in both photosynthetic efficiency and...
Resource Type:: Dissertation
Full Text:: well as develop- mental and/or morphological responses. FOREST RESEARCH LABORATORY LIBRARY

Diurnal and seasonal changes in xylem water potential, stomatal conductance and abscisic acid in five different habitat types of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:: Murphy, Ellyn Margaret
Abstract:: Sapling Douglas-fir trees on five sites in the Coastal and Cascade Mountain ranges of Oregon were measured five times during the year from the summer of 1977 through the spring of 1978 for diurnal patterns of xylem water potential, stomatal conductance and abscisic acid. Vapor pressure deficit and solar radiation...
Resource Type:: Masters Thesis

Management impacts on the ectomycorrhizal associations of Pseudotsuga menziesii var. menziesii seedlings : field and greenhouse bioassays

Creator:: Pilz, David P.
Abstract:: Field and greenhouse bioassays were used to compare the mycorrhizal associations of Douglas-fir seedlings from undisturbed forests, and nonburned and burned portions of clearcuts on three Sites in the west-central Cascades of Oregon. Field soil transfers and greenhouse soil pasteurization and reinoculation were used to investigate soil biology and inoculum...
Resource Type:: Masters Thesis

Abscisic acid levels in relation to stomatal behavior during drought and recovery in contrasting ecotypes of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:: Newville, Edward G.
Abstract:: Foliage of Douglas-fir seedlings [Pseudotsuga menziesii (Mirb.) Franco] from two contrasting environments was sampled during progressive stages of two consecutive cycles of induced drought for leaf resistance, plant water potential , and abscisic acid content (ABA). One group of seedlings was placed in a controlled environment room while another group...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Pollen contamination trends in a maturing Douglas-fir seed orchard

Within-stem variation of respiration in Pseudotsuga menziesii (Douglas-fir) trees

The estimation and significance of sapwood basal area in young Douglas-fir stands

Variation in the foliar nutrient status of several Douglas-fir provenances

Environmental and physiological control of stomates in Douglas-fir and other species

Starch content and crown growth in two Douglas-fir stands

Geographic and seasonal variation in photosynthetic efficiency and capacity of Rocky Mountain Douglas-fir, Pseudotsuga menziesii var. glauca

Diurnal and seasonal changes in xylem water potential, stomatal conductance and abscisic acid in five different habitat types of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Management impacts on the ectomycorrhizal associations of Pseudotsuga menziesii var. menziesii seedlings : field and greenhouse bioassays

Abscisic acid levels in relation to stomatal behavior during drought and recovery in contrasting ecotypes of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

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