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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 21 for “"Black Walnut"”.
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Soil-site evaluation for black walnut in northeast Kansas
Call number: LD2668 .T4 1978 B37
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Soil-site evaluation for black walnut in northeast Kansas
Call number: LD2668 .T4 1978 B37
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Characterization of black walnut (Juglans nigra) cultivars for agroforestry systems
… taken advantage of the late-leafing habit of walnut (Juglans spp.) to grow a spring grain crop between the tree rows. A parallel but underutilized opportunity in North American involves incorporating eastern black walnut (Juglans nigra L.) cultivars into alley cropping systems. Eastern black …
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Honeylocust and Black Walnut Tree Products within a Temperate Appalachian Silvopasture
… of honeylocust (Gleditsia triacanthos L.) or black walnut trees (Jugulans nigra L.) into pasture systems may improve soil and water quality, increase biodiversity, and diversify farm incomes. Studies of productivity and management are needed to understand the trees' potential. Research was …
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Improving and elucidating factors regulating black walnut (Juglans nigra L.) clonal propagation
<p>Black walnut (<em>Juglans nigra</em> L.) is a fine hardwood tree species native to the central hardwood region of the United States. High-quality black walnut timber is highly desirable. Traded in both regional and global markets, it has been used for veneer, and the manufacture of high-end …
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Resistance to Walnut Anthracnose Development in Juvenile Leaves of Black Walnut Seedlings
Walnut anthracnose is the most serious foliar disease of black walnut causing premature defoliation and reduced growth. Early studies failed to identify functionally resistant cultivars of balck walnut to this disease. From previous artificial inoculation studies on greenhouse-grown seedlings, …
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Survival and chemical control of Cylindrocladium spp. inciting root rot of black walnut seedlings
… for 4 wk. Control of Cylindrocladium root rot of black wainut seedlings with sodium azide at 224 kg/ha applied by the plowdown method was comparable to MC-33 at 504 kg/ha. Sodium azide at 67 kg/ha was only marginally effective in disease control. Reduction of Cylindrocladium microsclerotium …
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Effects of Black Walnut and Honey Locust on Forage Growth, Soil Water, and Soil Quality Indicators
… 1. Determine the influence of honey locust and black walnut silvopastures on indicators of soil quality when compared to open pasture. 2. Determine if silvopasture systems changed forage mass production and soil water compared to open pastures. The study on soil quality indicators was performed …
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CROWN IDEOTYPES FOR GENETICALLY IMPROVED BLACK WALNUT (JUGLANS NIGRA L.) CLONES UNDER AN INTENSIVE MANAGEMENT REGIME IN INDIANA, USA
… for more efficiently producing timber from black walnut (Juglans nigra L.), a valuable hardwood species that mainly grow in the Central Hardwood Region, US. To develop black walnut crown ideotypes for timber growth under an intensive management regime in North-Central Indiana, the following …
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CROWN IDEOTYPES FOR GENETICALLY IMPROVED BLACK WALNUT (JUGLANS NIGRA L.) CLONES UNDER AN INTENSIVE MANAGEMENT REGIME IN INDIANA, USA
… for more efficiently producing timber from black walnut (Juglans nigra L.), a valuable hardwood species that mainly grow in the Central Hardwood Region, US. To develop black walnut crown ideotypes for timber growth under an intensive management regime in North-Central Indiana, the following …
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Investigation of a Model for the Study of Digital Perfusion in Equine Laminitis Using an Extract of Black Walnut (Juglans Nigra)
An aqueous extract of black walnut (BW) was tested for the ability to constrict isolated equine vessels and to potentiate the concentration-response (C-R) curve for epinephrine-induced constriction of isolated equine digital vessels in the presence of hydrocortisone. Clinical signs, hematologic and …
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Hair Sheep Production in Temperate, Deciduous Appalachian Silvopastures
… 13-yr-old honeylocust (Gleditsia triacanthos) or black walnut (Juglans nigra) trees. Cool-season grass-legume pastures were rotationally stocked with hair sheep crosses from mid-June through September. The objective of this project was to determine carcass characteristics and meat quality of hair …
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Lamb performance, behavior, and body temperatures in hardwood silvopasture systems
… animal performance was explored in this study. Black walnut and honeylocust-based silvopasture systems were compared with open pastures in a randomized complete block design (r = 3) over three summers. Pastures were rotationally stocked with 5-7 lambs depending on forage availability. Lambs were …
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Forage Production and Nutritive Value in a Temperate Appalachian Silvopasture
… We tested this hypothesis in a silvopasture near Blacksburg, VA. In 1995, black walnut and honey locust trees were planted within plots (r=3) of predominantly tall fescue pasture. Across a 12% slope, trees were planted to create treatments of low, medium, and high tree densities at shoulder, mid, …
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Allelopathic Effects of Festuca Arundinaceae on the Growth of Juglans Nigra Seedlings
Experiments in which potted black walnut (Juglans nigra L.) seedlings were watered with leachate from dead fescue (Festuca arundinaceae Schreb.) tops resulted in reduced walnut root dry weight, with no effect on top growth. Leachate from live fescue, fescue roots, and green fescue leaves did not …
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A survey of the food habits of the gray squirrel (Sciurus carolinensis) in Montgomery County, Virginia
… (36%), fungi (26%), white oak acorns (12%), and black walnuts (10%) were the major foods. Red oak acorns (36%) and combinations of acorns, hickory nuts, and walnuts (22%) constituted most of the winter diet, followed by fungi (16%) and black walnuts (10%). Red oak acorns (26%) again headed the …
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Establishment of native plant species for livestock forage in silvopasture systems
… (Pinus taeda L.) hybrid and eastern American black walnut (Juglans nigra L.) -- with open pasture as a control, and determine how differences in environmental factors (Photosynthetically Active Radiation (PAR), ambient temperature, and soil moisture) associated with each treatment affect …
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Frontiers in alley cropping: Transformative solutions for temperate agriculture
… of the most common temperate AC system – black walnut trees for timber with annual grain alley crops – against the widespread maize-soybean rotation. Even without monetization of environmental benefits, I demonstrate that AC can improve landowner profitability across a substantial portion …
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In Vitro Investigation on Therapeutic Potential of Juglone, a Naphthoquinone from Walnuts against Pancreatic Cancer
… found in Juglandaceae family, which includes black walnut, European walnut, and butter nut possess various biological activities. The anti-cancer properties of juglone has been reported; however, the effect of juglone in pancreatic cancer (PC) has not been elucidated yet. PC is an aggressive …
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Spring Phenology and Trophic Ecology of Trees, Caterpillars, and Migrating Neotropical -Nearctic Songbirds
… was altered and folivory in Juglans nigra (black walnut) and Quercus macrocarpa (bur oak) canopies was increased 100%. Birds foraged disproportionately in rare trees [(<5% relative basal area; J. nigra, Q. macrocarpa, Ulmus americana (American elm), and Ulmus rubra (slippery elm)], and …
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