The Faculty of Agriculture: Browsing Landwirtschaftliche Fakultät by Title
Now showing items 946-965 of 1267
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QTL Analysis for Drought Tolerance Related to Root and Shoot Traits in Barley (Hordeum vulgare L.)
Sayed, Mohammed Abd El-Aziz Abd El-Haliem (2011-05-16)Enhancement of drought tolerance of cultivated barley via identifying the potential and beneficial QTL alleles of wild species (<em>H. vulgare ssp. spontaneum</em> C. Koch) is a great target in barley breeding. Therefore, ... -
Qualitative and quantitative assessment of sustainable urban stormwater management in Bogotá, Colombia
Ortega Sandoval, Abby Daniela (2023-10-02)Rapid population growth and urbanization have triggered abrupt changes in land use, intensifying impervious surfaces and the loss of green areas. Sustainable urban drainage systems (SUDS) are an appealing alternative to ... -
Qualitätskommunikation und Erfolgsfaktoren im Commodity-Marketing: Entwicklungsmöglichkeiten einer Getreidemarke mit regionaler Identität
Meyer, Christian H. (2010-06-10)In der Agrar- und Ernährungswirtschaft konzentrieren sich das Marketinginteresse und damit auch die Marketingforschung im Wesentlichen auf klassische Qualitätsprodukte wie Fleisch oder Bioprodukte sowie auf Nahrungsmittel ... -
Quality aspects of short duration VLBI observations for UT1 determinations
Schnell, Dorothee (2006)Today geodetic Very Long Baseline Interferometry (VLBI) is the most important technique for the determination of all components of earth rotation. Among all parameters describing the current earth rotation relative to a ... -
Quality management, certification and related agricultural organisations along the value chain: Empirical study about Fairtrade coffee in China
Chen, Lu (2015-06-08)Coffee quality tends to be defined from various dimensions to meet the demand of buyers. It goes beyond the physical and cupping qualities, with moral value and environmental concern becoming crucial features of the ... -
Quantifizierung horizontaler Nährstoffbewegungen durch angepasste Weidewirtschaft mit Schafen in Naturschutzgebieten
Brenner, Sven; Nieß, Erhard; Pfeffer, Ernst (2002)Ziel der vorliegenden Untersuchung war es, in einem Beweidungsversuch über zwei Vegetationsperioden die mit der Hüteschafhaltung in Naturschutzgebieten verbundenen horizontalen Nährstoffbewegungen zu quantifizieren. Den ... -
Quantitative characterization of solute transport processes in an undisturbed unsaturated soil by means of electrical resistivity tomography (ERT)
Köstel, Johannes (2010-07-27)Improved understanding of water flow and solute transport through the unsaturated zone is important for the sustainable management of soils. As soils are complex and heterogeneous systems, quantification of the transport ... -
Quantitative evaluation of ruminal nutrient degradation using in situ and in vitro methods
Deitmers, Jan-Helge (2024-09-06)Quantitative evaluation of ruminal nutrient degradation using <em>in situ</em> and <em>in vitro</em> methods Studies on ruminally cannulated animals are expensive and time consuming. Furthermore they are limited to a few ... -
Quantitative modelling of the Rural Development Programs of the Common Agricultural Policy - EU-wide and region-specific effects
Schroeder, Lilli Aline (2021-03-18)Rural Developments Programmes (RDPs) of EUs Common Agricultural Policy (CAP) are implemented to promote agricultural competitiveness, sustainable management of natural resources and climate protection, and a balanced ... -
Quantitative trait loci analysis in spring wheat comparing two advanced backcross populations derived from an exotic wheat accession
Schubert, Anne Christa (2010-07-01)The objective of the present study was to identify and localise favourable, exotic QTL alleles for the improvement of 16 quantitative agronomic traits, quality parameters and disease resistances in elite wheat cultivars. ... -
A rapid impact assessment approach for decision support in food policy
Novelli, Emanuele (2012-06-12)Under the pressure of many alternative stakeholders’ demands, the food policy maker needs to consider regulatory decisions in order to grant a safe final product for the consumer, as well as to foster the improvement of ... -
Räumliche Variabilität von Bodeneigenschaften mit Relevanz für das Verhalten von Herbiziden: ein Optimierungsansatz für den Präzisionspflanzenschutz
Mertens, Franz Michael (2008)Ziel dieser im Rahmen des DFG-Graduiertenkollegs 722 „Präzisionspflanzenschutz“ angefertigten Arbeit war es, die teilflächenspezifische Anwendung von Herbiziden durch die Einbindung von Bodeninformationen zu optimieren. ... -
Re-Solution - understanding the uncertainty in regional applications of crop models
Angulo Villacís, Carlos Lenín (2015-02-27)Uncertainties emerging from the scale change and data constraints when analyzing and further utilizing the results of regional crop model applications are largely unclear. The present thesis offers a systematic analysis ... -
Reactions between nitrite and soil organic matter and their role in nitrogen trace gas emissions and nitrogen retention in soil
Wei, Jing (2018-01-22)As a key intermediate of both nitrification and denitrification, nitrite (NO<sub>2</sub><sup>-</sup>) is highly chemically reactive to soil organic matter (SOM), and it was proved previously that considerable amounts of ... -
Ready for regrowth: A physiological and metabolic characterization of young sugar beets under temporary drought
Wedeking, Rita (2018-06-18)Although the sugar beet belongs to the rather drought relevant species, water availability plays a crucial role in terms of plant development and yield formation, hence water deficits can lead to adverse consequences. Aim ... -
Real-time quantification of oxygen isotope exchange between carbon dioxide and leaf/soil water in terrestrial ecosystems with laser-based spectroscopy
Gangi, Laura (2015-08-26)The oxygen isotope ratio of atmospheric carbon dioxide (δ<sup>18</sup>O-CO<sub>2</sub>) can be used to partition the gross fluxes of CO<sub>2</sub> in terrestrial ecosystems, such as soil respiration and plant assimilation, ... -
Recovering from Financial Implications of Flood Impacts: The Role of Risk Transfer in the West African Context
Wagner, Simon; Thiam, Sophie; Dossoumou, Nadège; Hagenlocher, Michael; Souvignet, Maxime; Rhyner, Jakob (2022-07-10)In many West African river basins, households regularly experience floods and the associated impacts. In the absence of widely accessible formal risk transfer mechanisms (e.g., insurance), households often have to cope ... -
Recreating genomically stable rapeseed
Ihien, Elizabeth Omonefe (2024-08-15)Rapeseed (<em>Brassica napus</em>, AACC) is a young allotetraploid species formed by the hybridization of <em>Brassica rapa</em> (AA) and <em>Brassica oleracea</em> (CC). The genetic diversity of rapeseed is limited as a ... -
Reduction of Gaseous Emissions from Slurry by the Application of Alkaline Additives
Holtkamp, Felix (2023-12-12)The agricultural sector is undergoing a profound transformation process to meet international and national regulations and laws. These are being enacted by policymakers to limit the sector's tremendous gaseous emissions ... -
Reduktion der Ammoniakausgasung aus Kofermentationssubstraten und Gülle während der Lagerung und Ausbringung durch interne Versaurung mit in NRW anfallenden organischen Kohlenstofffraktionen
Clemens, Joachim; Wulf, Sebastian (2005)In diesem Vorhaben wurde überprüft, ob mit organischen Reststoffen Gülle und Gärrückstände angesäuert werden können, um NH3- und Treibhausgasemissionen zu reduzieren. In Laborversuchen wurden hierfür die Eignung ...