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 10 of 10 for “"Root Structures"”.
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Automated Root Tracing Using Deep Learning
Roots play a crucial role in plant development by anchoring plants, absorbing nutrients, and maintaining soil structure. Understanding root structures and dynamics is vital for ecological research and assessing soil health. However, tracing roots from photos obtained with Minirhizotron is a …
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Coarse Root Biomass and Architecture: Applications of Ground Penetrating Radar
… radar (GPR) to identify and quantify coarse roots was tested in a mixed-oak forest in Southeastern Virginia using experimental pits and locally excavated root segments. GPR was found to be highly dependent on low soil moisture levels as it is unable to differentiate root structures if they …
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Evaluation of phenotyping methods for maize
… been developed that allow for the measurement of root complexity, stalk diameter and root angle. The method used is direct imaging of the root structures under controlled diffuse lighting. The method as developed in this work, differs in that the lighting is not diffuse, but structured in the form …
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Analyzing remote sensing-derived normal difference vegetation index to predict coastal protection by Spartina alterniflora
… provide protection to the coastline through its root structures, which reduce soil erosion, and its stem structures, which dissipate wave energy. The drag a plant induces could be used to quantify the amount of coastal protection that is provided. This study combined field measurements and drone …
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Analyzing Remote Sensing-Derived Normal Difference Vegetation Index to Predict Coastal Protection by Spartina alterniflora
… provide protection to the coastline through its root structures, which reduce soil erosion, and its stem structures, which dissipate wave energy. The drag a plant induces could be used to quantify the amount of coastal protection that is provided. This study combined field measurements and drone …
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Root Problems in Human Variation
… is an investigation of post-canine tooth root morphology in a global sample of modern humans. Tooth roots are variable in number, shape and orientation, and internal canal form and number do not necessarily covary with external morphology. However, this variation is poorly understood in …
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A tale of two grasses: Seed production has small & potentially positive effects on seed & seedling traits of squirreltail grasses, but Thurber’s needlegrass resists farming
… and emergence likelihood, emergence times, root allocation, and root characteristics for Elymus sp. Seed was harvested three times, with an original harvest from wildland populations and two harvests from plants grown from wild seed on a native seed farm. Seeds from all collections were …
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Characterization of a Creosote-Contaminated Tie Yard Site and the Effects of Phytoremediation
… microorganisms was likely limited. The root structures of fescue and rye grasses were neither dense nor complex enough to promote phytoremediation effects. PAH reductions were generally greater for constituents with higher aqueous solubilities. It is thought that PAH losses were …
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Interpretation of coarsening upwards hemicycles in the Upper Paleozoic rocks of South-central West Virginia
… shale, sandy siltstone with abundant burrows, root structures, and thinly interbedded sand- and mud-dominant units), e) crevasse (sandstone without any vertical decrease in grain size), and f) distributary and meandering channels (thick pebbly sandstones with point bar structures). The …