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.
Results
Showing 1 to 20 of 30 for “"Crop development"”.
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Adaptability of Soybeans to Late-Planted Environments (Isolines, Gxe, Double Cropping)
… grown in the Midwest primarily as a full-season crop and only to a limited extent as a double crop. Development of cultivars specifically adapted to double cropping has been suggested as a means to expand double-crop acreage in this area. Before initiating a separate breeding program for the …
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INSTITUTIONAL LOCK-IN AND PRODUCER-CONTROLLED CROP RESEARCH CHECK-OFFS IN SASKATCHEWAN
… suggest farmers chronically underinvest in crop research from a profit maximizing perspective. The refundable nature of Saskatchewan crop research check-offs may be one reason why farmers’ collective level of research investment has not increased in a material way. Of the nine provincially …
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Variations in albedo among natural and disturbed South Western Cape veld types
… veld types. Disturbances such as overgrazing, crop-development and fire are included. Surface readings were taken during January and June in ten veld types and floristic and soil data as well as climatic variables were measured. Disturbed veld types were found to have significantly higher …
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Public participation GIS as a cultural process: cultural theory, participation references, and GIS-aided decision making among farmers in central Illinois
… environmental and economic impacts of bioenergy crop development. Results suggest a practical need to integrate participation preferences in adaptive management strategies, particularly regarding farmer involvement, while Grid/Group theory provides a unifying framework for interpreting …
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Factors influencing seed yield and quality of dwarf French bean (Phaseolus vulgaris L.) in Canterbury
… were imposed on dwarf French bean plants during crop development and maturation. The effects of the treatments on seed yield and yield components, as well as the suitability of Canterbury for growing this crop as a seed crop, were determined. In 1996/97 plants were grown under 50 % shade at a …
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"How do value chain (VC) decisions in bread production contribute to quality characteristics related to human health?"
… tools could be applied to inexpensively monitor crop development and to compare management practices at stages critical to production of good protein quality characteristics. In addition, due to the similarity of kaizen methodology and the Codex Alimentarius Commission (Codex) recommendations for …
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Linking Semiochemical Ecology and Spatial Dynamics to Improve Integrated Pest Management of Striped Cucumber Beetle, Acalymma vittatum
… activity before aggregations develop on young crop plants. This dissertation examined striped cucumber beetle semiochemical attraction, spatial capture patterns, baited-trap operating range, and early-season perimeter trap deployment to inform future selective semiochemical-based management …
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Impact of Cover Crops on Phosphorus Biochemical Cycling and Dynamics in Texas Agricultural Soils
… effect of buckwheat (Fagopyrum esculentum) cover cropping on phosphorus uptake in wheat (Triticum aestivum) across three Texas soil types, Weswood (WSW), Ships (SHP), and Yahola (YHL), and three wheat cultivars (TAM 107, TAM 110, TAM 304). The study also assessed phosphorus fractionation and …
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Incidence, Distribution and Characteristics of Major Tomato Leaf Curl and Mosaic Virus Diseases in Uganda
… space and time, and with management practices, crop development stage, and weather conditions. Number of plants infected with tomato yellow leaf curl viruses (TYLCVs) was inversely proportional to percentage marketable tomato yield (R = -0.14, p = 0.04). B. tabaci population, varied with …
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Design and implementation of a low-cost FMCW imaging radar
… and entails using imaging radar data to monitor crop development. As a result, a project was initiated at the University of Cape Town (UCT), in collaboration with droneSAR company, which aimed to develop a low-cost, compact, imaging radar that could be mounted on a small Unmanned Aerial Vehicle …
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A novel dynamic zero-plane displacement height approach to improve remote sensing-based estimation of heat fluxes over corn fields
… heat flux (H) is critical for determining actual crop evapotranspiration (ETa) rates and optimizing irrigation. However, heat fluxes over cropped systems are sensitive to surface aerodynamic properties, including the zero-plane displacement height (do), which may introduce uncertainties in the ETa …
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Validating Leaf Area Index (LAI) and canopy cover estimated from satellite imagery products with ground measurements in plum orchards, Western Cape
… increasingly depends on precise monitoring of crop performance, where accurate estimation of the Leaf Area Index (LAI) plays a central role in linking canopy structure to productivity. LAI is not only a key indicator of crop development and yield potential but also a critical input in …
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Responses of selected chickpea cultivars to imidazolinone herbicide
… herbicides. The chickpea breeding program at the Crop Development Centre, University of Saskatchewan, has developed chickpea cultivars with resistance to imidazolinone (IMI) class of herbicides. The objectives of this study were: (i) to examine the reaction of four chickpea cultivars – CDC Luna, …
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Spatial and temporal estimation of pumping and recharge in groundwater system analysis
… water requirement is a function of the crop type, crop development, soil properties, and rainfall; all of which vary in space and time. A portion of this dissertation work is directed at the development of a GIS-based method for estimating irrigation demand that incorporates these …
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Double-crop corn (zea mays) weed control in Virginia
Double-crop production of corn (Zea mays L.) for grain following the harvest of small grain is not currently practiced in Virginia. Historical precipitation and evapotransportation data indicate that delayed corn planting could result in a higher probability of moisture during critical periods of …
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EnogisAI: An Artificial Intelligence Framework for Predictive Agronomics
… (AI) represent an opportunity to improve crop quality and yield while efficiently and sustainably using the available planetary resources. This thesis describes EnogisAI: a comprehensive framework for developing and adopting agronomic AI solutions in the field. EnogisAI encompasses all the …
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Towards applied modeling of the human-eco-system an approach of hydrology based integrated modeling of a semi-arid sub-catchment in rural north-west India
The development of rural areas concerning food security, sustainability and social-economic stability is key issue to the globalized community. Regarding the current state of climatic change, especially semi-arid regions in uenced by monsoon or El Niño are prone to extreme weather events. Droughts, …
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Enhancing photosynthetic capacity and energy conversion in wheat
Wheat is one of the major grain crops worldwide and provides approximately 20% of the total caloric and protein input for the world’s population. An increase in crop yields is required to meet the demands of the increasing world population in a challenging scenario of less predictable climatic …
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The Use of Morphogenic Transcription Factors to Enhance Plant Regeneration
… approach to address this problem is improving crops through biotechnological genome modification, e.g., with CRISPR/Cas9. However, avoiding the regulation associated with genetically modified organism (GMO) labels is necessary for rapid, economical crop development. An alternate approach to …
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Meristem regulation in the early divergent land plant Marchantia polymorpha
Meristems are key features of land plant development, enabling post-embryonic organogenesis through precise spatial patterning of cell division and differentiation. Extensive work on flowering plant meristems has revealed gene circuits driving meristem patterning, which are increasingly targeted to …
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