Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1153 for “"Pine"”.
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Somatic embryogenesis in southern and tropical pine species: Loblolly pine (Pinus taeda), Longleaf pine (P. palustris) and Oocarpa pine (P. oocarpa)
… in 1) Pinus taeda and Pinus palustris; pine species of high value for commercial applications and germplasm conservation supported through breeding programs at The Virginia Department of Forestry (Chapter III); and 2) Pinus oocarpa; an economically important pine species in the southern …
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Drought-Tolerance Comparison of Aleppo Pine and Brutia Pine Seedlings
<p>Seedlings of Pinus halepensis and P. brutia were grown from seeds in a greenhouse. When 6 months old, randomly sampled seedlings were subjected to water stress by withholding irrigation. During this period, foliage and root characteristics of seedlings not under moisture stress were recorded. …
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Mycotrophy in loblolly pine
… the survival of seedlings. The survival of pine seedlings was tested in non-sterile and gnotobiotic systems when <i>Pisolithus tinctorius</i> and <i>Rhizoctonia solani</i> were added alone and in combination. When <i>P. tinctorius</i> alone was added to growth substrate of the pines, the …
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Evolutionary responses of plants to seed-eaters : pine squirrel predation on lodgepole pine
Digitized by Kansas Correctional Industries
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Evolutionary responses of plants to seed-eaters : pine squirrel predation on lodgepole pine
Digitized by Kansas Correctional Industries
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Shrinkage characteristics of lodgepole pine
… of two North American varieties of lodgepole pine: Pinus contorta var. latifolia and Pinus contorta var. murrayana, sampled at 10% of tree height. For var. murrayana, size was the only factor that had a significant effect on specific gravity; specific gravity decreased with increasing tree …
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Impacts of mountain pine beetle outbreak on biogeochemical cycling in a high elevation whitebark pine ecosystem
… the effects of the current widespread mountain pine beetle outbreak on ecosystem processes like carbon (C) and nitrogen (N) cycling are poorly understood. This is especially true in high elevation whitebark pine (WbP) (Pinus albicaulis) ecosystems of western North America. WbP has been described …
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Impacts of mountain pine beetle outbreak on biogeochemical cycling in a high elevation whitebark pine ecosystem
… the effects of the current widespread mountain pine beetle outbreak on ecosystem processes like carbon (C) and nitrogen (N) cycling are poorly understood. This is especially true in high elevation whitebark pine (WbP) (Pinus albicaulis) ecosystems of western North America. WbP has been described …
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Zinc Uptake in Loblolly Pine Seedlings
… terminal growth, stem, and needles of loblolly pine (Pinus taeda L.) were measured in 72 seedlings grown in washed sand, fertilized with Zn(N03)2. Zinc treatment periods were early spring, late spring, and summer. Zinc uptake was the greatest in early spring. Zinc nitrate fertilizer and …
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Mountain Pine Beetle Detection using IoT
… evaluate an IoT system for real-time Mountain Pine Beetle (MPB) infestation detection using bioacoustic recognition via deep learning techniques. First, we present the design of the IoT system and describe its various hardware and software components. We built our IoT device using LoRa …
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A study of structural Southern pine
… board feet of dense select structural southern pine, graded and inspected to conform to standard grading rules for southern pine lumber, was carefully investigated in order to determine (1) whether the lumber is within grade limitations, (2) what are the variations in and ranges of its physical …
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Longitudinal air permeability of lodgepole pine
… representing two varieties of lodgepole pine (Pinus contorta, vars. latifolia and murrayana) were measured with a steady state apparatus. It was found that the mean ratio of sapwood to heartwood permeability was ca. 10:1 for both varieties. The mean ratio of var. latifolia to murrayana …
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Modeling Mortality of Loblolly Pine Plantations
… mortality models were developed for loblolly pine plantations throughout its geographic range in the United States. The model for predicting stand mortality were developed using stand characteristics and biophysical variables. The models were constructed using two modeling approaches. In the …
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Nitrification in a pine bark medium
… were grown in one-liter containers filled with pine bark, treated with and without a nitrification inhibitor and fertilized with 210 ml of a 100 ppm NH₄-N solution. Without the inhibitor and over time, “soil” solution NH₄-N concentrations and pH decreased and NO₃-N concentrations increased. …
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Austrian X Japanese red pine hybrids : morophological features, natural distribution, and yield from open-pollinated Austrian pine
Thesis (M.S.)--Michigan State University. Dept. of Forestry, 1967
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Changes in litter inputs and decomposition in headwater streams during a mountain pine beetle infestation of whitebark pine
… (GYE) a climate change induced mountain pine beetle (Dendroctonus ponderosae, MPB) outbreak has been decimating whitebark pine (Picea albicaulis, WbP) forests over an extremely short time period. Among the possible implications of widespread WbP die-off, I predicted an increase in litter …
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Changes in litter inputs and decomposition in headwater streams during a mountain pine beetle infestation of whitebark pine
… (GYE) a climate change induced mountain pine beetle (Dendroctonus ponderosae, MPB) outbreak has been decimating whitebark pine (Picea albicaulis, WbP) forests over an extremely short time period. Among the possible implications of widespread WbP die-off, I predicted an increase in litter …
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