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 674 for “"SDS"”.
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IDENTIFICATION AND CHARACTERIZATIONS OF PATHOGENICITY GENES IN FUSARIUM VIRGULIFORME, THE CAUSAL AGENT OF SOYBEAN SUDDEN DEATH SYNDROME (SDS)
… the causal agent of sudden death syndrome (SDS) of soybean (Glycine max [L.] Merrill), is responsible for major soybean yield losses in North America and South America. Despite the importance of SDS, few agronomic practices have been used to manage SDS successfully. Understanding the …
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IDENTIFICATIN AND CHARACTERIZATION OF PATHOGENICITY GENES IN FUSARIUM VIRGULIFORME, THE CAUSAL AGENET OF SUDDEN DEATH SYNDROME (SDS) IN SOYBEAN
… pathogen that causes sudden death syndrome (SDS) disease in soybean. SDS is one of the most significant diseases of soybean in the United States. Fungal infection results in root and crown rot as well as SDS typical foliar symptoms including chlorosis, necrosis and complete defoliation. The …
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Biology, Epidemiology, and Management of Spring Dead Spot of Bermudagrass
Spring dead spot (Ophiosphaerella spp.) (SDS) of bermudagrass (Cynodon dactylon (L.) Pers. x transvaalensis Burtt Davy) is one of the most challenging diseases in the United States transition zone. Six projects were conducted from 2019 to 2022 to better understand the environmental, edaphic, and …
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Private Speech and Inner Speech in Typical and Atypical Development
… together be referred to as self-directed speech (SDS). SDS is thought to be an important aspect of human cognition. The first chapter of the present thesis explores the theoretical background of research on SDS, and brings the reader up-to-date with current debates in this research area. Chapter 2 …
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Investigating Spring Dead Spot Management via Aerial Mapping and Precision-Guided Inputs
Spring dead spot (SDS) is the most destructive disease of bermudagrass (Cynodon spp.) in Virginia. SDS infects bermudagrass in the fall with symptoms appearing in the spring when dormancy breaks. Patches are sporadically distributed but generally reoccur in the same location. Chemical control …
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Single Molecule Study of Polymer-Surfactant Interactions
… the anionic surfactant sodium dodecyl sulfate (SDS) and a hydrophobically modified non ionic polymer, methylcellulose (MC), have been investigated in aqueous solution by fluorescence correlation spectroscopy (FCS), cryo-TEM, turbidity and rheology. The micelle formation of SDS is followed with …
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Utilizing spring dead spot mapping to assess precision management strategies, topographical epidemiology, economic opportunities
Spring dead spot (SDS), a monocyclic, soil-borne disease caused by Ophiosphaerella spp., affects the rhizomes and stolons of bermudagrass (Cynodon dactylon L. Pers), and is particularly severe in regions with extended dormancy, such as the transition zone. This research evaluates three aspects of …
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Resistance of Soybean [Glycine Max (L.) Merr.] to Fusarium Solani F. Sp. Glycines: Causal Agent of Sudden Death Syndrome
… of my third study was to detect QTL conferring SDS resistance in two populations of recombinant inbred lines (RILs) populations. These populations were from the crosses PI 567374 x 'Omaha' and 'Ina' x LN91-1695. Six chromosomal regions were significantly associated with SDS resistance in the PI …
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Application of in vitro methods to improve soybean resistance to Fusarium solani, the causal agent of sudden death syndrome
Sudden death syndrome (SDS) of soybean (Glycine max (L.) Merr.) is caused by the soilborne fungus, Fusarium solani. Calli reactions of five soybean cultivars grown on culture medium amended with fungal culture filtrate were compared to the reactions of the same five cultivars inoculated with the …
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Insights into the behaviour of hydrophobically modified ethoxylated urethane polymers in soft and hard colloid formulation
… formulations - polymer/ sodium dodecylsulphate (SDS)/latex and polymer/SDS/oil. The main techniques used here were nuclear magnetic resonance and small-angle neutron scattering. The HEUR showed evidence of strong interaction with SDS, where the SDS interacts both with the polymer hydrophilic and …
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Admicellar Polymerization Of Calcium Carbonate And Its Performance In Drilling Fluids
… polymerization using sodium dodecylsulfate (SDS) template to form ultrafilm polystyrene on commercial calcium carbonate (CaCO3 ) of various particle sizes was studied. Adsorption isotherms of SDS decrease after the critical micelle concentration (CMC) of SDS was observed. This is explained by …
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Mechanistic investigation of skin barrier perturbation induced by surfactants in the presence of humectants
… Surfactants such as Sodium Dodecyl Sulfate (SDS) are used in skin cleansers and in skin-care formulations because of their ability to stabilize oil-water emulsions and clean the surface of the skin. However, they also have adverse effects on the skin barrier, including enhancing skin barrier …
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Effect of fungicide seed treatments on Fusarium virguliforme and development of sudden death syndrome in soybean
Sudden death syndrome (SDS) is a soilborne disease responsible for causing significant yield reductions across soybean-producing states. Recent research indicates that infection of the soybean radicle early in the season by Fusarium virguliforme (Fv), the SDS pathogen, is critical for disease …
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Influence of Soluble Surface-Active Organic Material on Droplet Activation
… S$\sb{\rm c}$ of a particle that contains SDS is always higher than that of a pure NaCl particle with the same dry size. The degree of this deviation increases with increasing SDS% in the mixtures, indicating an increase in hydrophobicity with increasing SDS% in the initially dry particles. …
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Effectiveness of the Teaching of religious Education as part of social and development studies in the integrated primary school curriculum in Zambia: The case of Solwezi Urban basic Schools
… as part of Social and Development Studies (SDS). This research study therefore, was aimed at finding out the effectiveness of teaching Religious Education RE as part of SDS. The objectives of the study were to: (1) to assess the effectiveness of teaching RE as part of SDS; (2) to examine the …
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Kombinationswirkung von lipophilen und hydrophilen Substanzen: Auswirkung auf Zusammensetzung und metabolische Aktivität mariner bakterieller Gemeinschaften
… kombinierte Wirkung von Cd2+ und Laurylsulfat (SDS) auf die Struktur und Aktivität mariner bakterieller Gemeinschaften aus dem Wattsediment der deutschen Nordseeküste wurde unter Laborbedingungen untersucht. Cd2+ in Konzentrationen bis 5 mM beeinflußte nicht die Gesamtzellzahl, bewirkte jedoch …
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The use of gamma distributions to quantify the dependence of cloud particle size distributions in hurricanes on cloud and environmental conditions
… make assumptions about the size distributions (SDs) of different ice species, such as cloud ice, graupel, and snow, which have typically not been based on observations obtained in TCs. The representativeness of these parameterizations for TCs is not well known. In this study, observations …
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Expression and inheritance of resistance to Fusarium solani in soybean
Sudden death syndrome (SDS) of soybean (Glycine max (L.) Merr.) is caused by the soil borne fungus Fusarium solani (Mart.) Appel & Wollenw. emend. Snyd. & Hans. Symptoms of SDS include root rot, xylem discoloration, foliar chlorosis and interveinal necrosis. Microplot, field and greenhouse …
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