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Showing 1 to 18 of 18 for “"Q. alba"”.
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Morphologic and Phenolic Variation in Quercus Alba and Q. Stellata: Evidence For Hybridization
… intrapopulation and interspecific level for Q. alba L. and Q. stellata Wang. using three sites in the Southwest Missouri area. Morphologic results question the taxonomic significance of Forma alba and Forma latiloba within Q. alba. Discriminant analysis and Principal component analysis indicates …
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Effects of Soil Fungi on Tree Seedling Establishment in a Southeastern Coastal Plain Forest
… plain of South Carolina. Seedlings of Quercus alba, Cornus florida and Pinus taeda were planted in the understory of two forest types -naturally regenerated hardwood and planted pine. Fungal species composition and biomass were experimentally manipulated with a treatment of the fungicide …
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A range-wide disturbance history for Quercus alba in the eastern US
… the disturbance history from old-growth Q. alba sites located throughout the species' range with the ultimate goal of determining the environmental conditions and disturbance dynamics that existed throughout the latter period of Quercus dominance and early period of Quercus decline. My …
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Compost as a Growth Substrate for Woody Ornamental Nursery Production
… paniculata (goldenraintree), Quercus alba (white oak), and Magnolia grandiflora (southern magnolia) were grown in 473 mL bottomless milk containers for 150 days, then repotted to 3785 mL pots for 90 days. Media ratios were 1:0, 3:1, 1:1, 1:3, and 0:1 parts commercial media to leaf …
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Variations in Phenotypic Plasticity and Fluctuating Asymmetry of Leaf Morphology of Three Quercus (Oak) Species in Response to Environmental Factors
… to plasticity and FA variations in <em>Q. alba</em> (white oak), <em>Q. palustris</em> (pin oak), and <em>Q. velutina</em> (black oak). It was hypothesized that light exposure, individual trees, leaf position, and other leaf traits will influence variation in these species. Leaves were …
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Fungi associated with the pistillate flowers of white oak (Quercus alba L.) and their effect on pollen germination
… only <u>Cladosporium</u> is parasitic on <u>Q. alba</u>, causing a leaf mold. Several other genera of fungi were isolated in low frequency from the oak flowers. Included in this group were <u>Penicillium</u>, <u>Pestalotia</u>, <u>Curvularia</u>, <u>Pyrenochaeta</u>, <u>Nigrospora</u> and …
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Effects of tannins on protein digestibility and detoxification activity in gray squirrels (Sciurus carolinensis)
… oak acorns (Quercus rubra), white oak acorns (Q. alba), or rat chow were fed to squirrels. Levels of phenols, condensed tannins, and hydrolyzable tannins were higher in red oak acorns than white oak acorns and were likely responsible for the lower dry matter intake, lower apparent protein …
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Growth hormones and their relationship to seed dormancy in Quercus
… of the seeds would germinate. White oak (Q. alba L.) seeds were not dormant and germinated immediately upon falling from the mother tree. A transfer of mass from the cotyledons to the embryos occurred during germination of red and white oak seeds. No detectable transfer of mass occurred …
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Growth and dieback of underplanted northern red oak seedlings under various light and moisture conditions
… (0, 70, or 90% residual canopy). White oak (Q. alba L.) and eastern white pine (Pinus strobus L.) were included in the field experiment for comparative purposes. In the greenhouse, dieback was observed under full sunlight and 92% shade but not in intermediate shading. In the field, dieback was …
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Stand dynamics and disturbance history of five oak -dominated old -growth stands in the unglaciated Appalachian Plateau
… study areas were oak-dominated forests. Quercus alba was, at minimum, twice as abundant as Q. velutina, the second ranked species. Acer saccharum and Fagus grandifolia were among the top ten ranked species at each site; however their importance value was consistently less than one-third the value …
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Ecology, behavior, impact, and an integrated pest management strategy for the orangestriped oakworm, Anisota Senatoria (J. E. Smith), in the urban landscape
… plant preference experiments indicated that Q. alba L., white oak, was least preferred by A. senatoria. A citizen survey provided a framework for designing an IPM program. Monitoring and establishing an aesthetic injury level of 25% defoliation decreased pesticide volume without an attendant …
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Nuevos orígenes de la madera de roble para la crianza de vinos tintos de la D.O.C. Rioja
… en comparación con las de uso tradicional (Q. alba americano y Q. petraea francés), para la crianza de un vino Tempranillo de la D.O.Ca. Rioja. Asimismo, se ha analizado su envejecimiento posterior durante un año en botella. Los resultados obtenidos confirmaron la importante influencia del …
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Detection of the Oak Wilt Pathogen in Sapwood of Northern Oak Species Using PCR Technology
… (red oak), Q. macrocarpa (bur oak), and Q. alba (white oak) trees in Minnesota. Drill shavings were collected from actively wilting oak trees as well as from tissues taken the year following branch or whole tree death. Between the assays tested (nested PCR, real-time PCR, and isolation), the …
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The Role of Resource Predictability in the Metapopulation Dynamics of Insects
… (<em>Quercus rubra</em>) and white oak (<em>Q. alba</em>) trees as resource patches for two generalist and one specialist species of acorn weevil (<em>Curculio</em>) and employ a Bayesian state space formulation of single-species multi-year dynamic occupancy modeling to examine the effect of …
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Factors limiting the regeneration of large-seeded hardwoods in the Upper Coastal Plain of South Carolina
… we planted one-year old bare root Quercus alba L. and Cornus florida L. seedlings in pine plantation understories and adjacent clearcuts. We hypothesized that soil moisture, light, and leaf and stem herbivory would have relatively strong effects on growth and survival during the first two …
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Seasonal movements, habitat selection, and food habits of black bears (Ursus americanus) in Shenandoah National Park, Virginia
… forests and northern red oak \ white oak (<i>Q. alba</i>) forests by both males and females in early and late fall was attributed to annual variation in oak mast production, preference for white oak acorns, foraging strategy, and the importance of mountain laurel (<i>Kalmia latifolia</i>) shrub …
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A Multi-scale Analysis of the Potential Impacts of Rapid Climate Change on Forest Lands Managed by the Department of Defense in the US
… species associated with oak (Quercus rubra, Q. alba)-hickory (Carya cordiformis) forest) increased in abundance, especially on more xeric sites such as sand plains and convex landforms covered in coarse-textured glacial till. However, boreal and cool temperate species, such as sugar maple (Acer …
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Digestibility of Foods and Anthropogenic Feeding of Black Bears in Virginia
… red oak <i>(Quercus rubra)</i>, white oak <i>(Q. alba)</i>, and chestnut oak acorns <i>(Q. prinus)</i>, squawroot <i>(Conopholis americana)</i>, high-protein dogfood, shelled corn, and doughnuts. All diets were evaluated for nutrient content as well as percent dry matter digestibility of crude …