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Showing 1 to 15 of 15 for “"juglans nigra"”.
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Characterization of black walnut (Juglans nigra) cultivars for agroforestry systems
… 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 walnut is …
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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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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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CROWN IDEOTYPES FOR GENETICALLY IMPROVED BLACK WALNUT (JUGLANS NIGRA L.) CLONES UNDER AN INTENSIVE MANAGEMENT REGIME IN INDIANA, USA
… 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 investigations …
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CROWN IDEOTYPES FOR GENETICALLY IMPROVED BLACK WALNUT (JUGLANS NIGRA L.) CLONES UNDER AN INTENSIVE MANAGEMENT REGIME IN INDIANA, USA
… 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 investigations …
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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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Establishment of native plant species for livestock forage in silvopasture systems
… 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 establishment of …
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Hair Sheep Production in Temperate, Deciduous Appalachian Silvopastures
… (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 sheep crosses …
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Biology of the Rare Woodland Perennial Trillium Pusillum Micheaux (Liliaceae) in Southwest Missouri
… vs. hickory (Carya spp.) and walnut (Juglans nigra) at Hoover Woods. Sequential and total pollinator visits were lower at Hoover Woods, suggesting that T. pusillum on that site may be pollinator limited. Seeds were dispersed at all sites by ants, ecxept at Hoover Woods where 30% of the …
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Spring Phenology and Trophic Ecology of Trees, Caterpillars, and Migrating Neotropical -Nearctic Songbirds
… the trophic cascade 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 …
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Identifying floral hosts of cerambycid beetles using palynology
… and proportions of pollen taxa. I found Juglans nigra L. (Juglandaceae), Quercus L. (Fagaceae), and Vitis L. (Vitaceae) in frass from Anelaphus pumilus (Newman). Acer L. (Sapindaceae), Viburnum L. (Caprifoliaceae), and Quercus was found in frass from Cyrtophorus verrucosus (Olivier). I …
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Phenology, impact, and rearing of Lycorma delicatula (White) (Spotted Lanternfly) in Virginia
… (Miller) Swingle (Sapindales: Simaroubaceae), Juglans nigra L. (Fagales: Juglandaceae), and Liriodendron tulipifera L. (Magnoliales: Magnoliaceae). Two sites in Pennsylvania that have experienced high populations and heavy feeding pressure from L. delicatula since 2016 were used to collect tree …
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Herbaceous and woody plant establishment across hydrologic gradients in bottomland reforestation sites
… palustris and Carya illinoensis. None of the Juglans nigra seedlings survived to the end of the study. Elevation, along with time and species identity, were important predictors of planted tree survival; as elevation increased, probability of survival for each of the four species increased. …
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Effects of Black Walnut and Honey Locust on Forage Growth, Soil Water, and Soil Quality Indicators
The goal of this research was to determine the interactions between forage and tree components of a silvopasture system. Two studies were performed on adjacent sites established in 1995 at Virginia Tech's Kentland Research Farm. The objectives of the studies were to: 1. Determine the influence of …
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Behavior and Physiological Responses of Livestock Under Different Grazing Systems
… study site consists of 0.27-ha of black walnut (Juglans nigra; BSP) and honeylocust (Gleditsia triacanthos; HSP) silvopastures and open pasture treatments, each replicated three times. During the summers of 2020 and 2021, thirty-six Katahdin ewes were assigned to one of the treatments for a …