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 36 for “"Sugar Maple"”.
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The relationship between dominant forest mycorrhizal type and the belowground mycobiome of the sugar maple and eastern hemlock
… types. To do this, 435 seedlings of the sugar maple (Acer saccharum) and eastern hemlock (Tsuga canadensis) were identified, measured and harvested across four sites, Mont-Écho, Mégantic National Park, Lac-des-Plages, and the Station de biology des Laurentides. I characterized the root …
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The effects of stress on biomass, soluble sugar concentrations and VA mycorrhizal colonization in sugar maple seedlings (Acer saccharum Marsh.)
… 50% defoliation were examined for two year-old sugar maple seedlings for one growing season (June-September). Biomass, soluble root carbohydrates and mycorrhizal colonization progressively decreased with increasing ozone stress. Shading had a negative effect on vesicles and coils at certain …
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Post-Transplant Root Production, Mortality, and Periodicity of Landscape-Sized Shade Trees
… balled-and-burlapped (B&B) and pot-in-pot (PIP) sugar maple (Acer saccharum Marsh.), and 3) characterize seasonal patterns of root production and mortality of transplanted sugar maple. No new root growth occurred outside or within the root balls of red or willow oak between November transplanting …
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Site quality factors affecting Acer saccharum, Quercus rubra and Quercus alba abundance and height growth rates in young even-aged stands located in central Missouri
Sugar maple importance has been increasing in Missouri's forest for the previous several decades. Managers have little information to guide them with selecting silviculture treatments for managing this increasingly important species. I examined the effects that soil water, soil nutrients, and …
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Effects of nitrogen and calcium on photosynthesis and metabolic activity in Acer saccharum in the Catskill Mountains
… and mobilize other ions that can be harmful to sugar maple (Acer saccharum) rooting systems. The effects of fertilizers on the metabolism and photosynthesis rates of sugar maple are of great interest to both farmers and ecologists. In this study, 12 plots in a 60-year-old sugar maple dominated …
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Sugar maple (Acer saccharum Marsh.) provenances differ with climate of origin in survival, growth, and traits along a climate gradient: implications for the species' distribution under climate change
… the effects of temperature and neighbors on sugar maple (Acer saccharum) seedling survival, growth, biomass allocation, and functional traits, and whether this response varies with populations’ climate of origin. I first examine survival and growth of forest-planted seedlings across a natural …
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The effects of age and size of canopy gaps on the mycorrhizae of yellow birch (Betula alleghaniensis Britton) and sugar maple (Acer sacchrum Marsh.) from deciduous forests of the Québec city region
… birch and vesicular-arbuscular mycorrhizae of sugar maples collected from two deciduous forests in central Quebec were examined. The colonization of maple roots by arbuscules, vesicles, and coils were quantified. Colonization by ectomycorrhizal fungi was quantified and characterized using …
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Vegetation Dynamics of an Old-growth Mixed Mesophytic Forest in Southeastern Ohio, USA
… at Dysart Woods are decreasing in abundance, sugar maple and American beech are rapidly increasing in importance, as is the invasive Alliaria petiolata. This shift in composition may be due to beech and sugar maple showing little negative responses to neighbors, and/or reflect increasing …
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Water Use of Landscape Trees During Pot-In-Pot Production and During Establishment in the Landscape
… Therefore, water use and growth of red and sugar maple (Acer rubrum L. 'Franksred' and Acer saccharum Marsh.) were studied during two years of pot-in-pot (P+P) production and during three years after transplanting to field soil. Three major experiments were completed. The first experiment …
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A possible condensation of guaiacol, vanillin and sucrose
… among the products derived from the sap of the sugar maple. By using a five percent sucrose solution and equal quantities of vanillin and guaiacol, a little calcium malate and manganese acetate, they obtained an amorphous powder possessing no odor of vanillin or guaiacol but having an odor …
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Differential Canopy Leaf Flushing and Site Nitrogen Status Facilitate Invasive Species Establishment in Temperate Deciduous Forest Understories
… (quaking aspen), <em>Acer saccharum </em>(sugar maple), <em>Quercus </em>spp./<em>Carya </em>spp. (oak/hickory), <em>Fraxinus americana </em>(white ash), <em>Robinia pseudoacacia</em> (black locust), and <em>Pinus </em>spp<em>./Tsuga canadensis</em> (pine/hemlock). Measures of understory …
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Coordination of physiological and morphological acclimation of shade-grown tree saplings to late-season canopy gap formation
… deciduous hardwoods: red oak (Quercus rubra L.), sugar maple (Acer saccharum Marsh.), tulip poplar (Liriodendron tulipifera L.), and white ash (Fraxinus americana L.). Physiological acclimation responses included higher photosynthetic rates in shade-developed foliage upon exposure to higher …
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Root Regeneration of Transplanted Trees in Relation to the Status of Carbohydrate Levels and Root Invading Fungi
… of 7 species of shade trees (Norway, red and sugar maple, green ash, redbud, ginkgo and pin oak), growing under nursery conditions were characterized. In general, the vertical distribution of the major roots showed the greatest development at the soil depth of 13-38 cm, with limited growth in …
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Remote detection of forest structure in the White Mountains of New Hampshire: An integration of waveform lidar and hyperspectral remote sensing data
… aspects, simultaneously support by levels of sugar maple abundance and low levels of sugar maple coarse woody debris. LVIS height metrics were used here to establish a statistical relationship with coarse woody debris data.</p><p>The integration of waveform lidar with hyperspectral data did …
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