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 12 of 12 for “"GM crops"”.
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The Political-Economy of Science and (Bio)Technology: The Emergence of Agricultural Biotechnology in Canada
The development of genetically modified (GM) seeds has been followed by the rapid production of GM crops. Many insightful contributions have been made in the academic literature on the emergence of agricultural biotechnology, however, some gaps remain. First, there is a lack of emphasis on …
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Addressing Genetic Pollution from Pollen Drift on a Heterogeneous Landscape
<p>Genetically modified (GM) crops are crops in which single or multiple genes have been introduced artificially in order to obtain certain characteristics that are difficult to obtain through conventional breeding. Even though farmers have the right to freely choose what types of crops to grow, …
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The "Silent Scream" of "Pathetic Seeds": exploring a feminist ethics of care as a means to broaden the scope of current GM crop risk assessment practices in South Africa
The risk assessment of genetically modified (GM) crops is assumed to be a benign regulatory tool, due to its perceived objectivity and freedom from the morals and values that pervade society. Yet, against the backdrop of growing environmental pressures, social tensions and political instability, …
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Greenpeace cyberadvocacy: message strategies and the framing of the "say no to genetic engineering" campaign
… published preceding the commercial release of GM crops. In both countries, biotechnology policy was the most dominant frame used. The Philippines used significantly more frames and sources in longer articles.</p>
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Farm-level and socio-economic impacts of a genetically modified subsistence crop : the case of smallholder farmers in KwaZulu-Natal, South Africa
Internationally, genetically modified (GM) crops have been the fastest adopted agricultural technology in recent history with a 67-fold increase in global area planted between 1996 and 2007. The first plantings of insect resistant (Bt) white maize in 2001/02 established South Africa as the first GM …
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Chloroplast Biotechnology in Higher Plants: Expressing Antimicrobial Genes in the Plastid Genome
… to wild relatives has hampered acceptance of GM crops in some markets. Chloroplast transformation presents an attractive alternative to nuclear transformation and offers the potential to ameliorate these environmental concerns. Most agronomically important species exhibit maternal inheritance …
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Exploring the uptake of genetically modified white maize by smallholder farmers: the case of Hlabisa, South Africa
The use of genetically modified (GM) crops to resolve food security and poverty issues has been met with controversy and scepticism. The rationale for this research was to highlight the nuanced reasons as to why smallholder farmers are motivated to use agricultural biotechnology. The aim of this …
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Welfare effects of new fire blight control methods on the U.S. apple industry
… agents as well as genetically modified (GM) varieties based on current fire blight resistant varieties. This thesis uses dynamic simulations to evaluate the impact of those new technologies on consumption and production as well as world trade. Through development of a dynamic temporal and …
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Consumers' subjective and objective knowledge of genetically modified food in a South African context
Genetically modified (GM) crops were developed as a solution to ensure sustainable food production for an ever-increasing world population, especially in developing countries. As such, products such as GM foods are now part of South African consumers' daily lives. Soy and maize are two of the most …
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Essays on Innovation
… firms. Using a unique patent database using GM crops technology, where I can track the development of the technology since I identify the first patent issued in this field. One significant finding is that university patents generate broader use at the beginning of the technology cycle, while …
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Evolution of Bacillus thuringiensis Maize Yields in South Africa
… environmental benefits of genetically modified (GM) maize in South Africa have been well documented in previous literature. However, concerns about the longevity of these benefits, have been raised following reports of Busseola fusca developing resistance to Bacillus thuringiensis (Bt) maize in …
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Characterization of a minimal abiotic stress-inducible promoter in the development of a binary vector for crop protection
… Over 15 years (1997-2013), genetically modified (GM) crops (mainly introducing insect and herbicide resistance traits) have facilitated an average global yield increase of 22 % while improving farmers profit margins by up to 68 % and, reducing the amount of land farmed owing to higher …