Landwirtschaftliche Fakultät: Suche
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Multiple hazards risk profiling in West Africa: Assessment, Validation and Upscaling
(2017-08-17)
Disasters, particularly recurring small-scale natural disasters of floods and droughts have been affecting West African (WA) communities, impacting particularly weak households. These losses have been significantly high ...
The role of cellular and extracellular MicroRNAs in bovine follicular development and as potential indicators of early pregnancy
(2017-04-06)
MicroRNAs (miRNAs), a class of short non-coding RNA molecules, emerged as major regulators of ~60% of all protein encoding genes. These molecules play an important role in mammalian follicular growth and embryonic development ...
Immediate and protracted transcriptional response of muscle tissue to transient variation of incubation temperature in broilers
(2017-06-09)
Eggshell temperature is a critical factor, which can possibly influence immediate and/or long-term gene transcription and expression. Manipulation of temperature (low 36.8°C and high 38.8°C relative to control 37.8 °C) at ...
Subcellular localization of Glutathione peroxidase-like enzymes (GPXLs) in Arabidopsis thaliana and characterization of GPXL3 deficient mutants
(2017-03-27)
A common feature of plants being exposed to diverse forms of environmental stress is the increased formation of reactive oxygen species (ROS) in both photosynthesis and respiration. Formation of ROS, however, is not ...
Drying front formation in topmost soil layers as evaporative restraint: Non-invasive monitoring by magnetic resonance and numerical simulation
(2017-04-04)
Prediction of soil moisture changes on large scales is of various interests with regard to water resources management. Within this PhD work, different Magnetic Resonance (MR) concepts/apparatus and sequences were applied ...
Influence of nitrogen and water supply on evapotranspiration, yield and agronomic water use efficiency of winter wheat
(2017-05-09)
The predicted climate change for North West Europe, which will be characterized by higher temperatures and lower rainfall during the summer months, will challenge future food production. Against this background, the question ...
Grazing behavior of two Holstein dairy cow strains under organic farming conditions in Switzerland
(2017-04-11)
The aim of the thesis was to test if concentrate supplementation is required in an organic, pasture-based feeding system and if concentrate supplementation influences grazing behavior. The study consisted of two trials, ...
Binding and mobilization of pharmaceuticals in wastewater-irrigated soils and sediments of the Mezquital Valley, Mexico
(2017-05-16)
The irrigation of crop fields with treated or untreated wastewater has been an ancient practice in many cities around the world and is still a common practice nowadays. In doing so, wastewater is disposed and at the same ...
Managing seasonal soil nitrogen dynamics in inland valleys of the West African savanna zone
(2017-05-16)
Most cropping systems in the Dry Savanna agro-ecological zone of West Africa qualify as low-input systems. Nitrogen is the most limiting nutrient element and the prevailing low-input systems rely mainly on the provision ...
Identification of host genes with a role in sex determination of the plant parasitic cyst nematode, Heterodera schachtii
(2017-07-03)
Cyst nematodes are biotrophic parasites that infect plant roots and cause physiological and structural modifications leading to the formation of syncytial nurse cells. They are sexually dimorphic but the sexual phenotype ......