Sökning: "agricultural biotechnology"
Visar resultat 6 - 10 av 196 avhandlingar innehållade orden agricultural biotechnology.
6. From Betterment to Bt maize : agricultural development and the introduction of genetically modified maize to South African smallholders
Sammanfattning : Agriculture has received renewed attention in poverty reduction efforts in Africa in recent years, and there are hopes that GM crops could have an important role in helping increase smallholder yields and reduce poverty. Drawing on critical discourse analysis (CDA) and livelihoods perspectives, this thesis examines the ideas governing the Massive Food Production Programme (MFPP), an agricultural development programme aiming to reduce poverty by raising agricultural production in Eastern Cape Province, South Africa, and its local effects when implemented in smallholder communities. LÄS MER
7. Process development for platform chemical production from agricultural and forestry residues
Sammanfattning : As part of a bio-based economy, biorefineries are envisaged to sustainably produce platform chemicals via biochemical conversion of agricultural and forestry residues. However, supply risks, the recalcitrance of lignocellulosic biomass, and inhibitor formation during pretreatment impair the economic feasibility of such biorefineries. LÄS MER
8. Bioaugmentation for reduction of diffuse pesticide contamination : a bioprophylactic concept
Sammanfattning : Pesticides and their residues frequently contaminate surface waters and groundwater so consequently there is a great need to identify methods and practices that reduce such contamination. This thesis examined the potential of a 'bioprophylactic' concept based on the hypothesis that diffuse contamination after application in the field can be significantly reduced if pesticides are degraded as rapidly as possible after the intended effect has been achieved. LÄS MER
9. Light-phyllosphere interactions in greenhouse grown ornamentals
Sammanfattning : Light-emitting diodes (LEDs) have emerged as a promising artificial lighting source in greenhouse production of horticultural crops, as they reduce energy consumption. However, changes in lighting technology are known to affect abiotic and biotic interactions in the phyllosphere, e.g. LÄS MER
10. Bio-based materials from crambe and carinata industrial oilseed meals : compression moulded and extruded oilseed meal plastics
Sammanfattning : Protein-based plastics are considered as a new route for valorisation of oilseed meal from the industrial oil crops Crambe abyssinia (crambe) and Brassica carinata (carinata) as they cannot be used for animal feed or human food. To convert oilseed meals into protein-based plastic films compression moulding was used with varying processing temperature, chemical additives and protein extraction conditions. LÄS MER
