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 63 for “"plant diseases"”.
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Deep Learning for Early Detection, Identification, and Spatiotemporal Monitoring of Plant Diseases Using Multispectral Aerial Imagery
… crops is hampered by the proliferation of crop diseases which cause huge harvest losses. Current crop-health monitoring programs involve the deployment of scouts and experts to detect and identify crop diseases through visual observation. These monitoring schemes are expensive and too slow to …
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Characterization of Novel Type VI Effectors of Acidovorax citrulli and Their Applicability to Biological Control of Plant Diseases
… growth of multiple deleterious phytopathogens in planta and protects plant host. Transgenic plants expressing either full-length Hyde1 or its transmembrane domain demonstrate improved resistance against both bacterial and oomycete pathogens. Altogether, we characterize the T6SS killing of AAC00-1, …
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A new approach for delivery of entomopathogenic fungi for plant protection against insect pests and plant diseases via maize seed : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… to associate with roots and aerial parts of the plant. The potential benefits from the plant-fungal association are as broad as nutrient acquisition, plant growth promotion, protection against biotic or abiotic factors and even increase of the induced defence response in the plant through …
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Assessing the involvement of BslA in plant-root associated biofilms
Many pathogens are capable of causing plant diseases that can decimate yields of important food crops. The increasing demand for food production, driven by an ever growing human population, has made the prevention of plant diseases an extremely important and pressing issue. Current methods for …
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Advancing Explainability in Multi-Label Classification for Tomato Disease Detection Using Machine Learning Interpretability Techniques
<p>Plant diseases pose a significant threat to global food security, affecting crop yield, quality, and overall agricultural productivity. Traditionally, diagnosing plant diseases has relied on timeconsuming visual inspections by experts, which can often lead to errors. With the rapid growth of …
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Evaluation of soybean cyst nematode (SCN) resistance in perennial glycine species and genome-wide association mapping and genomic prediction study for SCN resistance in common bean and prediction of the short distance movement of soybean rust urediniospores through machine learning
… started, there have been numerous occasions when plant diseases of crops had severe impact on human activities. From the famine caused by potato late blight (Phytophthora infestans) in Ireland in 1846, to the dramatic economic loss caused by downy mildew of grapes (Plasmopara viticola) in the …
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Systematics of Caenodelphax Fennah (Hemiptera: Fulgoroidea: Delphacidae) and description of the new genus Flavoclypeus
Delphacid planthoppers (Hemiptera: Fulgoromorpha: Delphacidae) are of worldwide economic interest as crop pests and vectors of plant diseases. Despite their importance, much of their evolutionary history remains poorly understood and many genera within Delphacidae need revision. Delphacodes Fieber, …
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Biological War Against Agriculture and the Threat of Agricultural Bioterrorism
… as a form of warfare. There are many animal and plant diseases that could be used to target American agriculture. Over the course of history, biological agents have been used to attack agriculture several times. States that have developed biological weapons programs have included anti-crop and …
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An autonomous decision support system for smart farming to increase crop productivity
… irrigation water, increased soil pollution, plant diseases, and heat waves, causing many agricultural problems. Issues such as plant diseases, heat waves, floods, and water salinity all cause many agricultural problems. The farming industry needs to invest in new technologies and …
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Flight Vehicle Control and Aerobiological Sampling Applications
… models developed to predict the spread of plant diseases in the lower atmosphere. The developed concepts and methods are demonstrated by field experiments focusing on the spread of the plant pathogen <i>Phytophthora infestans</i>.
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Cytokinin-mediated processes promote heat-induced disease susceptibility of plants to bacterial pathogens
… to non-optimal, high temperature conditions plant defense responses to pathogen attack are attenuated, leading to a process referred to here as heat-induced disease susceptibility. The plant growth hormone cytokinin is known to regulate responses to both biotic and abiotic pressures, making …
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Movement and Structure of Atmospheric Populations of Fusarium
… collected in the lower atmosphere to cause plant disease. We hypothesized that certain isolates of Fusarium collected with UAVs cause plant diseases. To test this hypothesis, we randomly selected isolates of three different species (F. circinatum, F. avenaceum, and F. sporotrichioides) of …
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Identification and characterization of genes in antagonism against soybean fungal pathogens by lysobacter enzymogenes
… fungal, oomycete, bacterial, and nematode plant diseases. Understanding the molecular mechanism of LeC3 antagonism against multiple pathogens could greatly improve its biocontrol efficacy. In this study, a library containing 948 transposon-insertion mutants of LeC3 was generated and …
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Endophytic Actinomycetes as potential agents to control common scab of potatoes
… have indicated their ability to combat plant diseases. Some <em>Streptomyces</em> species colonize within plant tissues without causing disease symptoms (endophytes). This research sought for the presence of endophytic <em>Steptomyces</em> or closely related species in potato plants that …
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<i>Phlox paniculata</i> 'Blue Boy' and <i>Rudbeckia hirta</i> 'Indian Summer': Cultural Guidelines for Greenhouse Growth and Powdery Mildew Control
… extremely susceptible to powdery mildew. Some plant growth regulators (PGRs) have been reported to reduce severity of certain plant diseases. The objectives of these experiments were to: 1) define optimal fertilizer, irrigation rates, and media types for these cultivars; 2) determine optimal …
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Molecular and cellular analyses of pathogenicity and host specificity in rice blast disease
… become a model system for the study of fungal plant diseases based on its global relevance to agriculture and on our ability to apply molecular genetic and genomic analyses to both the pathogen and the plant. We have applied molecular and cellular analyses to understand critical processes in …
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Screening and evaluation of bacteria for the biological control of Botrytis cinerea on Vitis vinifera
… the agriculture industry is threatened by plant pathogenic microorganisms, with fungi accounting for 42% of plant diseases. Botrytis cinerea is the most notable of all plant pathogenic fungi. B. cinerea is notoriously known to cause grey mould or grey rot in grapevine (Vitis vinifera), …
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Investigating the regulation of plant immunity by the N-degron pathway
Crop losses arising from plant diseases present a major obstacle for efforts to meet the food demands of a growing global population, and these impacts may be exacerbated by unprecedented rates of climate change. The Ubiquitin Proteasome System (UPS) contributes to the regulation of plant immunity …
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