Bibliographies thématiques / Douglas fir. Seedlings

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Littérature scientifique sur le sujet « Douglas fir. Seedlings »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 10 février 2022

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Articles de revues sur le sujet "Douglas fir. Seedlings"

Livingston, N. J., and T. A. Black. "Water stress and survival of three species of conifer seedlings planted on a high elevation south-facing clear-cut." Canadian Journal of Forest Research 17, no. 9 (1987): 1115–23. http://dx.doi.org/10.1139/x87-170.

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Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco), western hemlock (Tsugaheterophylla (Raf.) Sarg.), and Pacific silver fir (Abiesamabilis (Dougl.) Forbes) container-grown 1-0 seedlings were spring planted on a south-facing high elevation clear-cut located on Mount Arrowsmith, Vancouver Island, British Columbia. Treatments, which included inclining seedlings to the southwest, provision of shade cards, irrigation, and irrigation and shade cards combined, were applied to determine whether modification of seedling microclimate would increase survival. Highest survival rates, regardless of treatme

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Simpson, David G., and Alan Vyse. "Planting stock performance: Site and RGP effects." Forestry Chronicle 71, no. 6 (1995): 739–42. http://dx.doi.org/10.5558/tfc71739-6.

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Douglas-fir [Pseudotsuga menziesii var glauca (Beissn.) Franco], interior spruce [Picea glauca Moench (Voss), Picea engelmannii (Parry) and their naturally occurring hybrids] and lodge-pole pine (Pinus contorta Dougl.) seedlings were planted on several forest sites in south central British Columbia. At planting, root growth potential (number of newly elongated roots longer than 10 mm per seedling) was determined. Trees were assessed for survival and height for at least five years. Survival of Douglas-fir and growth of all three species was affected by planting site, probably reflecting moistur

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Chanway, C. P., and F. B. Holl. "Influence of soil biota on Douglas-fir (Pseudotsuga menziesii) seedling growth: the role of rhizosphere bacteria." Canadian Journal of Botany 70, no. 5 (1992): 1025–31. http://dx.doi.org/10.1139/b92-127.

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The influence of soil biota on Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedling growth was investigated by sowing seed collected from two ecologically distinct zones in British Columbia, Chilliwack and Williams Lake, in soil collected from the same two areas. Seedling biomass of both Douglas-fir ecotypes was greatest in unpasteurized soil collected from the same area as was the seed, but pasteurization negated this effect. In addition, Chilliwack seedlings responded specifically to biota present only in Chilliwack soil. To determine if rhizosphere bacteria were involved in these gro

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Chanway, C. P., and F. B. Holl. "Ecological growth response specificity of two Douglas-fir ecotypes inoculated with coexistent beneficial rhizosphere bacteria." Canadian Journal of Botany 72, no. 5 (1994): 582–86. http://dx.doi.org/10.1139/b94-077.

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The influence of inoculation with rhizosphere bacteria on Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedling emergence in a controlled environment and on survival and growth in the field was investigated. Seed or seedlings of interior and coastal Douglas-fir ecotypes originating from the vicinity of Williams Lake and Chilliwack, British Columbia, Canada, respectively, were inoculated with two strains of rhizosphere bacteria, Arthrobacter oxydans strain N74 and Pseudomonas aureofaciens strain K23. These strains were previously isolated from naturally regenerating Douglas-fir seedlings

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Cline, E., B. Vinyard, and R. Edmonds. "Spatial effects of retention trees on mycorrhizas and biomass of Douglas-fir seedlings." Canadian Journal of Forest Research 37, no. 2 (2007): 430–38. http://dx.doi.org/10.1139/x06-229.

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Retention forestry places seedlings in proximity to residual trees, exposing seedlings to additional sources of ectomycorrhizal fungus (EMF) inoculum. To investigate this, Douglas-fir ( Pseudotsuga menziesii (Mirb.) Franco) seedlings were planted near (2–6 m) and far (16–30 m) from 44- to 72-year-old residual Douglas-fir trees in western Washington, USA. From 1998 through 2000, seedling shoot and root biomass was assessed and EMF taxa were identified using morphology and sequence analysis of internal transcribed spacer and large subunit ribosomal RNA genes. Seedlings near residual trees had si

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Hung, Ling-Ling L., and Randy Molina. "Use of the ectomycorrhizal fungus Laccarialaccata in forestry. III. Effects of commercially produced inoculum on container-grown Douglas-fir and ponderosa pine seedlings." Canadian Journal of Forest Research 16, no. 4 (1986): 802–6. http://dx.doi.org/10.1139/x86-142.

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Inoculation of container-grown Douglas-fir and ponderosa pine seedlings with vegetative inoculum of Laccarialaccata (Scop.:Fr.) Berk. & Br., prepared by Sylvan Spawn Laboratory, yielded ectomycorrhizae in a research greenhouse experiment; however, in two container nurseries, ectomycorrhizae were observed only on inoculated Douglas-fir seedlings. Successfully colonized seedlings had more short roots than did the controls. The percentage of L. laccata ectomycorrhizae increased with increasing inoculation rates. Inoculation rate for best seedling growth and ectomycorrhiza formation differed b

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Minore, Don. "Effects of sowing depth on emergence and growth of Douglas-fir, western hemlock, and noble fir seedlings." Canadian Journal of Forest Research 15, no. 5 (1985): 935–40. http://dx.doi.org/10.1139/x85-150.

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The effects of sowing depth of seeds of several western forest tree species were studied in greenhouse experiments. Emergence and seedling weight of Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco), western hemlock (Tsugaheterophylla (Raf.) Sarg.), and noble fir (Abiesprocera Rehd.) were reduced by sowing seeds in soil at depths greater than 1 cm. Deep sowing in a peat–vermiculite mixture also reduced the emergence of Douglas-fir and western hemlock, but increased the hypocotyl diameters and weights of Douglas-fir seedlings.

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Hobbs, S. D., S. G. Stafford, and R. L. Slagle. "Undercutting conifer seedlings: effect on morphology and field performance on droughty sites." Canadian Journal of Forest Research 17, no. 1 (1987): 40–46. http://dx.doi.org/10.1139/x87-008.

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Bareroot 2-0 Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) and ponderosa pine (Pinusponderosa Dougl. ex Laws.) seedlings were subjected to five undercutting treatments, which varied by number and depth of undercut and seedling phenology at time of treatment, so that morphological characteristics at lifting and field performance 4 years after planting on droughty south slopes in southwest Oregon could be evaluated. All undercutting treatments significantly reduced seedling top growth, but changes in root system morphology depended upon treatment severity and species. Treatment effects were

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Vyse, Alan, Christine Ferguson, Suzanne W. Simard, Tamaki Kano, and Pasi Puttonen. "Growth of Douglas-fir, lodgepole pine, and ponderosa pine seedlings underplanted in a partially-cut, dry Douglas-fir stand in south-central British Columbia." Forestry Chronicle 82, no. 5 (2006): 723–32. http://dx.doi.org/10.5558/tfc82723-5.

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The effects of partial cutting on seedling growth of three conifer species were studied at a very dry, hot interior Douglas-fir site near Kamloops, British Columbia. Douglas-fir (Pseudotsuga menziesii var. glauca (Beissn.) Franco), lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.), and ponderosa pine (Pinus ponderosa Dougl. ex. P. & C. Laws.) seedlings were planted in mechanically prepared 50 cm × 50 cm patches under different canopy conditions created by harvesting 60% of the original stand volume. The prepared areas were selected to represent canopy closures from ope

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Livingston, N. J., and T. A. Black. "The growth and water use of three species of conifer seedlings planted on a high-elevation south-facing clearcut." Canadian Journal of Forest Research 18, no. 10 (1988): 1234–42. http://dx.doi.org/10.1139/x88-190.

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Container-grown 1-0 seedlings of Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco), western hemlock (Tsugaheterophylla (Raf.) Sarg.), and Pacific silver fir (Abiesamabilis (Dougl.) Forbes) were spring planted on a south-facing high-elevation clearcut located on Mount Arrowsmith, Vancouver Island, British Columbia, and their growth and development was measured over three successive growing seasons. Treatments designed to modify seedling microclimate, including provision of shade cards, irrigation, and irrigation and shade cards combined, had a marked effect on the extent and type of growth in a

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Thèses sur le sujet "Douglas fir. Seedlings"

Bracher, Grant Allan. "Detection of nutrient stress in Douglas-fir seedlings using spectroradiometer data." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30961.

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Narrow-band spectral reflectance measurements in the visible and near-infrared region of the spectrum were investigated for the detection of nutrient deficiencies, and estimating the foliar concentrations of nitrogen, phosphorus, sulphur, and total chlorophyll. One-year-old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings were treated with 24 nutrient solutions containing nitrogen, phosphorus and sulphur levels ranging from 1 to 400 mg/L. After one growing season, newly matured needles were harvested, spectral reflectance measured from 400 to 1100 nm, and foliar samples analyzed fo

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Wickman, Marise. "The practical application of two dormancy induction trials on douglas-fir and western hemlock container seedlings." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24429.

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Two dormancy induction trials were conducted in a private container nursery in Saanichton, British Columbia. The first study examined the effects of photoperiod induced dormancy on morphology, root growth and field performance of fall planted western hemlock (Tsuga heterophyl_1ji (Raf.)Sarg.) and Douglas-fir (Pseudotsuga menzi_esv[ (Mirb.) Franco) seedlings. Various periods of eight hour days, ranging from two to eight weeks, were applied throughout July and August 1983. Outplanting was done in late September. Survival and growth were assessed one year later. The second project investigated t

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Cline, Erica Theon. "Mycorrhizal fungus communities of Douglas-fir (Pseudotsuga menziesii) seedlings and trees : effects of proximity to residual trees /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/5557.

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Klinka, Karel. "Survival and growth of western larch seedlings in relation to light availability." Forest Sciences Department, University of British Columbia, 1997. http://hdl.handle.net/2429/651.

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Western larch (Larix occidentalis Nutt.) is an important component of the montane forest in southeastern British Columbia. It grows in cool-temperate (IDF and ICH zones) and boreal climates (MS zone and, occasionally, ESSF zone). Larch is considered a very shade-intolerant species which can tolerate low light (partial shading) only during the seedling stage (the first 5 growing seasons). Typically, it regenerates after fire in the open on seedbeds exposed by burning. However, to what extent it tolerates low light and how various light environments affect its survival and growth is not known. T

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Noble, Robert James. "The response to UV-B irradiation of Douglas-fir seedlings (Pseudotsuga menziesii spp. glauca) propagated from seed collected from different elevations along a transect." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ36620.pdf.

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Klinka, Karel. "Survival and growth of planted seedlings on woody and non-woody forest floor substrates in high and low light environments of coastal British Columbia." Forest Sciences Department, University of British Columbia, 2001. http://hdl.handle.net/2429/647.

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In the wetter climates associated with the coastal forests of northwestern North America, coarse woody debris (CWD) accumulations in the form of snags, downed boles, and large branches can be large in natural forest ecosystems. Seedlings often regenerate on stumps and downed logs in the understory of old-growth coastal forests. The question remains though, whether CWD is a necessary component for seedling survival and growth in forests managed for commodity production. This study addresses one concern of forest managers: is there an immediate nutritional or moisture supply advantage conferr

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Xue, Jianming. "Effects of biuret addition on soil nitrogen transformations and Douglas fir seedling growth." Thesis, University of Canterbury. Forestry, 2002. http://hdl.handle.net/10092/7595.

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This project was carried out to evaluate the feasibility of using of biuret as a plant growth and/or soil microbial activity regulator at low concentrations, and as a slow-release N fertiliser at high concentrations. Biuret stimulated Douglas-fir seedling growth at low concentrations, but inhibited it at high concentrations. The stimulation of biuret on seedling growth in sand and solution culture was associated with increased net photosynthetic rate and nutrient uptake and when grown in the soil it was also related to the improvement of soil N availability and therefore the uptake of N by se

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Malmqvist, Cecilia. "Planting and survivability of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) in Sweden : Questions of seedling storability, site preparation, bud burst timing and freezing tolerance." Doctoral thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-59933.

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The non-native Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) has been grown to a limited extent in the southern part of Sweden since the early 1900s. A more extensive use has probably been curtailed by its known susceptibility to damage by frost, pine weevil and other pests. Limited access to vital seedlings of suitable provenances has also restricted its more widespread growth. The need for valuable species that will grow well through ongoing climate change has increased the interest for Douglas fir in Sweden. This thesis addresses a number of important questions relating to the planting

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Bates, Sarah L. "Impact of feeding by the western conifer seed bug, Leptoglossus occidentalis (Heidemann) (Hemiptera: Coreidae), on yield, seed storage reserves and seedling vigour in Douglas-fir." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ51294.pdf.

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O'Neill, Gregory Arthur. "Genetics of fall, winter and spring cold hardiness in coastal Douglas-fir seedlings /." 1999. http://hdl.handle.net/1957/13745.

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Livres sur le sujet "Douglas fir. Seedlings"

Husted, Lynn Diane. Dieback of container-grown Douglas Fir seedlings. Forestry Canada, 1989.

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McDonald, Phillip M. Release of Douglas-fir seedlings: Growth and treatment costs. U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1986.

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McDonald, Phillip M. Release of Douglas-fir seedlings: Growth and treatment costs. U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1986.

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McDonald, Phillip M. Release of Douglas-fir seedlings: Growth and treatment costs. U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1986.

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McDonald, Philip M. Release of Douglas-fir seedlings: Growth and treatment costs. U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1986.

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McDonald, Philip M. Release of Douglas-fir seedlings: Growth and treatment costs. U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1986.

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McDonald, Phillip M. Release of Douglas-fir seedlings: Growth and treatment costs. U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1986.

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McDonald, Philip M. Release of Douglas-fir seedlings: Growth and treatment costs. U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1986.

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Wenny, David Lee. A growing regime for container-grown douglas-fir seedlings. Forest, Wildlife and Range Experiment Station, College of Forestry, Wildlife and Range Experiment Sciences, University of Idaho, 1992.

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Radwan, M. A. Response of Douglas-fir seedlings to nitrogen, sulfur, and phosphorus fertilizers. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1985.

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Chapitres de livres sur le sujet "Douglas fir. Seedlings"

Simard, Suzanne W. "Mycorrhizal Networks and Seedling Establishment in Douglas-Fir Forests." In Biocomplexity of Plant-Fungal Interactions. Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781118314364.ch4.

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Pisante, M., N. Moretti, and S. Frisullo. "Water relations and ultrasound emissions in Douglas-fir seedlings infected with xylem pathogens." In Water Transport in Plants under Climatic Stress. Cambridge University Press, 1993. http://dx.doi.org/10.1017/cbo9780511753305.025.

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Rapports d'organisations sur le sujet "Douglas fir. Seedlings"

McDonald, Philip M., and Gary O. Fiddler. Release of Douglas-fir seedlings: growth and treatment costs. U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1986. http://dx.doi.org/10.2737/psw-rp-182.

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Radwan, M. A., and J. S. Shumway. Response of Douglas-fir seedlings to nitrogen, sulfur, and phosphorus fertilizers. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1985. http://dx.doi.org/10.2737/pnw-rp-346.

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Koehn, A. C., G. I. McDonald, D. L. Turner, and D. L. Adams. Dynamic phenotypic plasticity in photosynthesis and biomass patterns in Douglas-fir seedlings. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2010. http://dx.doi.org/10.2737/rmrs-rp-79.

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McDonald, Philip M., Gary O. Fiddler, and Henry R. Harrison. Mulching to regenerate a harsh site: effect on Douglas-fir seedlings, forbs, grasses, and ferns. U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1994. http://dx.doi.org/10.2737/psw-rp-222.

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McDonald, Philip M., and Gary O. Fiddler. Ecology and development of Douglas-fir seedlings and associated plant species in a Coast Range plantation. U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1999. http://dx.doi.org/10.2737/psw-rp-243.

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McDonald, Philip M., Gary O. Fiddler, and Henry Harrison. Repeated manual release in a young plantation: effect on Douglas-fir seedlings, hardwoods, shrubs, forbs, and grasses. U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1994. http://dx.doi.org/10.2737/psw-rp-221.

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Lopushlnsky, W., D. Zabowskl, and T. D. Anderson. Early survival and height growth of Douglas-fir and lodgepole pine seedlings and variations in site factors following treatment of logging residues. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1992. http://dx.doi.org/10.2737/pnw-rp-451.

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Castellano, Michael A., Donaraye McKay, and Walter G. Thles. Ecological impacts of using chloropicrin to control laminated root rot in Northwest conifer forests: growth and mycorrhiza formation of planted Douglas-fir seedlings after two growing seasons. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1993. http://dx.doi.org/10.2737/pnw-rp-464.

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