E-Dissertationen: E-Dissertationen: Recent submissions
Now showing items 321-340 of 1107
-
The role of production method and country-of-origin labelling in consumers' food choice: Empirical study based on meta-analyses and stated preference choice experiments
(2019-10-24)Organic production and domestic origin of food serve for consumers as extrinsic cues for food safety and food quality dimensions. With consumers' growing interest in food quality and their increasing concern regarding food ... -
The revision of the German Fertilization Ordinance in 2017: Analyzing economic and environmental impacts at farm-level
(2019-10-31)The Fertilization Ordinance (FO), implementing the EU Nitrates Directive in Germany, is the core regulation to limit the loss of reactive nitrogen and phosphorus from agriculture. It was revised in June 2017 after environmental ... -
Understanding food technology evaluation across supply chain actors: A methodological and empirical analysis
(2019-10-12)World development trends such as increasing world population, climate change, urbanization, malnutrition, food waste and losses as well as resource scarcity are challenging the global food system. To address these challenges, ... -
Visual Place Recognition in Changing Environments
(2019-10-10)Localization is an essential capability of mobile robots and place recognition is an important component of localization. Only having precise localization, robots can reliably plan, navigate and understand the environment ... -
The role of Rboh-mediated ROS and glutathione in plant-nematode interaction
(2019-11-05)Aerobic life forms are known for constant production of reactive oxygen species (ROS), the deleterious end-products of aerobic energy that are able to provoke cellular damage. The ROS production in plants can be triggered ... -
Biofilme in Melkanlagen
(2019-10-10)Die bakterielle Zusammensetzung von Biofilmen in Melkanlagen wurde mit einer Kombination aus kultivierungsgestützten und molekularbiologischen Methoden ermittelt. Bereits in der Melkanlage etablierte Biofilme wurden mit ... -
Influence of endocrine status on small ruminant sperm freezing response: Use of wild and domestic ruminants as an experimental model
(2019-11-22)Assisted reproductive technology improves livestock management and allows the storage of valuable genetic material of wild and domestic species in germplasm banks. Nevertheless, the use of frozen-thawed sperm for artificial ... -
Analysis and mitigation of site-dependent effects in static and kinematic GNSS applications
(2019-10-08)Satellitensignale unterliegen auf ihrem Weg von der Satelliten- zur Empfangsantenne einer Vielzahl an Einflüssen die zu Abweichungen führen. Heutzutage stellen in vielen Anwendungsbereichen insbesondere die stationsspezifischen ... -
Phosphorus forms in fertilized arable soil profiles and related 33P uptake
(2019-09-13)Arable soils usually store several thousand kg phosphorus (P) per ha, thus far exceeding the recommended P fertilizer dose to sustain crop yields. However, the soil profile is frequently not considered in fertilizer ... -
Food waste reduction concepts for stakeholders in the food supply chain and auxiliary organizations
(2019-09-10)The objective of this thesis was to develop concepts to support the reduction of food waste in the food sector. The concepts are targeted to private companies, such as manufacturing businesses, retailers, and large-scale ... -
Genetic mapping of quantitative trait loci associated with arsenic tolerance and accumulation in rice (Oryza sativa L.)
(2019-09-04)<strong>Genetische Kartierung von quantitativen Trait Loci im Zusammenhang mit Arsentoleranz und Akkumulation im Reis (<i>Oryza sativa</i> L.)</strong><br /> Reis (<em>Oryza sativa.</em> L) ist eines der wichtigsten ... -
Partitioning Water Vapor Fluxes by the Use of Their Water Stable Isotopologues: From the Lab to the Field
(2019-09-04)Water stable isotopes are powerful tracers for partitioning of the terrestrial ecosystem water vapor fluxes into process-based components, i.e. evapotranspiration (<em>ET</em>) into soil evaporation (<em>E</em>) and plant ... -
Untersuchungen zur Wirkung metallischer Nanopartikel auf Pflanzen
(2019-08-27)Die zunehmende Verwendung von Nanopartikeln (Np) in Konsumgütern und industriellen Anwendungen löst im Hinblick auf deren mögliche Freisetzung in der Umwelt und die damit verbundenen Auswirkungen auf Ökosysteme und Organismen ... -
Nitrogen sequestration in paddy and non-paddy soils formed from different parent materials
(2019-08-19)Paddy soils exhibit low nitrogen (N) use efficiency. Prior research in this field suggested that paddy soils may sequester significant amounts of N in aged amino acids, microbial residues, or even in pyrogenic N. The ... -
Demand for organic food in Switzerland
(2019-08-20)The aim of this dissertation is to better understand the functioning of the organic food market in Switzerland. Over the last three decades the market for organic food in Switzerland has developed positively and continues ... -
Spatial competition of learning agents in agricultural procurement markets
(2019-07-15)Spatially dispersed farmers supply raw milk as the primary input to a small number of large dairy-processing firms. The spatial competition of processing firms has short- to long-term repercussions on farm and processor ... -
Challenges and opportunities of using ecological and remote sensing variables for crop pest and disease mapping
(2019-07-15)Crop pest and diseases are responsible for major economic losses in the agricultural systems in Africa resulting in food insecurity. Potential yield losses for major crops across Africa are mainly caused by pests and ... -
Modeling the impact of biopores in the soil on root growth and root water uptake
(2019-06-19)<strong>Background and Motivation:</strong> Biopores are tubular shaped cavities in the soil formed by biological activity that enable plant roots to reach water and nutrient reservoirs at greater depths. Especially during ... -
Visual Odometry and Sparse Scene Reconstruction for UAVs with a Multi-Fisheye Camera System
(2019-06-13)Autonomously operating UAVs demand a fast localization for navigation, to actively explore unknown areas and to create maps. For pose estimation, many UAV systems make use of a combination of GPS receivers and inertial ... -
Boundary work and agricultural innovation systems: Stakeholder interaction and learning using an example of push-pull technology in Ethiopia
(2019-06-17)Maize is an important cereal crop for food security in Ethiopia. However, its productivity is low with average grain yields of less than 1 ton/ha which is below its potential of over 4 ton/ha. This is attributed to a variety ...
