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 277 for “"Bt"”.
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Evaluation of transgenic, Bt-containing corn hybrids
… containing a modified Bacillus thuringiensis (Bt) gene have been produced and may provide a new method of managing ECB.
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Impact of Natural Mortality Factors on Populations of the European Corn Borer in Bt- and Non-Bt-Corn Fields in Illinois
… of natural enemies of European corn borer in Bt cornfields. The findings were compared with assessments of the effects of natural enemies in non-Bt cornfields. In my study, corn type did not seem to affect the percentage of eggs parasitized by Trichogramma, the percentage of larvae parasitized …
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Making a Bioempire: The Indian Encounter with Bt Technology
… of neoliberalism and the commercialization of Bt (Bacillus thuringiensis) cotton in India. Situated against an intensified agrarian crisis in India, it explores the dynamic relationship among the triad of a neoliberlizing Indian State, global neoliberal regimes and transnational corporations. …
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Monitoring der Resistenzentwicklung des Maiszünsler (Ostrinia nubilalis), Hübner) gegenüber Bt-Mais
… und das Monitoring resistenter Maiszünsler auf Bt-Maisflächen verwendet um die Resistenzhäufigkeiten zweier Populationen in Deutschland zu ermitteln. Die hier vorgestellten Ergebnisse können für die Planung und Durchführung von Resistenzmanagement-Programmen in Deutschland eingesetzt werden. Sie …
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Resistance management of western corn rootworm (Coleoptera: Chrysomelidae) in transgenic Bt maize
… from the bacterium Bacillus thuringiensis (Bt) has been used to manage western corn rootworm, a major pest of maize, since 2003. However, this pest rapidly evolved resistance to Bt traits expressed in maize for rootworm management. This research examines several aspects of resistance …
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Ökologische und phytomedizinische Untersuchungen zum Anbau von Bt-Mais im Maiszünsler-Befallsgebiet Oderbruch
… der Anbau von Bacillus thuringiensis-Mais (Bt-Mais). Mit Hilfe der Gentechnik wurden Gene des Bakteriums Bacillus thuringiensis übertragen, die einen für Fraßinsekten giftigen Wirkstoff bilden, wodurch die Pflanzen während der kompletten Vegetation vor den Larven des Maiszünslers geschützt …
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Desempenho de populações de Spodoptera frugiperda em milhos Bt Cry1A.105 + Cry2Ab e Vip3A
… toxinas inseticidas de Bacillus thuringiensis (Bt) na agricultura mundial. Atualmente no Brasil, são amplamente usados para controle de Spodoptera frugiperda (Lepidoptera: Noctuidae), milhos Bt de segunda geração (i.e., piramidados), entre os quais estão aqueles que expressam toxinas Bt …
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An Ex-Ante Economic Impact Assessment of Bt Eggplant in Bangladesh, the Philippines and India
… projects the economic impact of adoption of Bt eggplant in India, Bangladesh and Philippines. The welfare benefits from adoption of Bt eggplant are projected to be positive in all three countries. The welfare gains from adoption (discounted at 5 percent) are projected to be US $ 411 million …
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Evaluation of Repairs Conducted on Full-Scale, Non-Conforming/Defective Prestressed Concrete Girders (PCI BT-54)
… and full-scale experimental testing of BT-54 girders with simulated nonconformance issues. Results showed that top flange repairs consistently exceeded original girder strength, while bottom flange repairs were generally effective except in bearing zones and transfer regions, where …
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Inheritance, fitness costs, and potential mechanisms of resistance for western corn rootworm larvae surviving Bt corn
… the bacterium Bacillus thuringiensis Berliner (Bt), cause mortality to target pests when ingested. In an attempt to delay resistance formation to these Bt products, the Environmental Protection Agency mandates the development of an insect resistance management program prior to registration for …
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Repurposing BT-11 to Treat Alzheimer’s Disease: Exploring the Glutathione-s-transferase LANCL2 as a Target
… new pharmaceuticals.</p> <p>One of such drugs is BT-11, which is an orally active lanthionine synthetase C-like 2 (LANCL2) binding compound, shown to reduce inflammation in the gut and improve cognitive function. Additionally, LANCL2 was identified as a glutathione-s-transferase, suggesting a role …
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Evaluating the effect of foliar insecticides on suspected Bt-resistant western corn rootworms in rotated soybean
… eggs in both corn and soybean fields. Commercial Bt corn hybrids targeting this pest have been widely adopted and were an effective tool to manage the rotation-resistant western corn rootworm. Until recently, documentation of field-evolved resistance by western corn rootworm to Bt traits was …
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A Study of Neonicotinoid Seed Treatments in Bt Maize: Insect Resistance Management, Efficacy, and Environmental Fate
… of genes derived from Bacillus thuringiensis (Bt), occupies more than 75% of maize acreage. Among a variety of secondary pests targeted by NSTs, the primary soil-dwelling pest targeted by Bt maize is the western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte (Coleoptera: …
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Inseticidas aplicados no controle de insetos sugadores como ferramenta de manejo de resistência de Spodoptera frugiperda ao milho Bt
… com genes de Bacillus thuringiensis (Bt) continuam sendo amplamente usados no manejo de lagartas em cultivos de milho no Brasil, as altas incidência de enfezamentos e densidade populacional da cigarrinha vetora, Dalbulus maidis (Hemiptera: Cicadellidae), demanda muitas aplicações de …
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Maíz Bt : seguimiento de la resistencia de Sesamia nonagrioides (Lepidoptera: Noctuidae) y Ostrinia nubilalis (Lepidoptera: Crambidae) y efectos en artrópodos depredadores
… de S. nonagrioides y O. nubilalis al maíz Bt var. Compa CB (derivada del evento 176, que expresa la toxina Cry1Ab) en zonas representativas del cultivo del maíz en España. Para dichas poblaciones se calculó la concentración de Cry1Ab que mata al 50% de la población (CL50) y se comparó en el …
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The movement behavior and reproductive ecology of western corn rootworm beetles (coleoptera: chrysomeliae) in Bt cornfields with structured and seed blend refuges
… larvae have been managed using transgenic Bt (Bacillus thuringiensis Berliner) corn hybrids expressing insecticidal Cry proteins since 2003. To slow the evolution of resistance to Cry proteins, the Environmental Protection Agency mandated an insect resistance management (IRM) plan requiring …
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Transgenic Pest Resistant Indica Rice: An Ex-ante Economic Evaluation of an Adoption Impact Pathway in the Philippines and Vietnam for Bt Rice
Research and development of Bt rice in Southeast Asia has been overshadowed by the contentious debate over the potential release of transgenic food crops into the region. The study provides empirical evidence on the potential size and distribution of economic benefits of adopting Bt Indica rice in …
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