E-Dissertationen: E-Dissertationen: Recent submissions
Now showing items 281-300 of 1116
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Diagnosing and managing zinc and boron deficiencies in emerging crop production systems of Nepal
(2020-12-02)The productivity and sustainability of the prevailing crop production systems are being challenged throughout the Indo-Gangetic Plains. Limiting water resources, depletion of soil fertility, social changes and economic ... -
Sapling ecology and management in multi-species afforestation system on degraded cropland in the Sudano-Sahelian zone of Benin
(2020-12-01)Sub-Saharan Africa faces the multiple challenges of improving food security of the rapidly growing human population while halting the severe land degradation and coping with climate change impacts. Re- and afforestation ... -
Exhaust air treatment systems for the mitigation of dust, ammonia and odour from poultry housing
(2020-11-26)Exhaust air treatment is becoming increasingly important in poultry husbandry with a rising number of animals kept per barn. An adaptation of the systems that already have been successfully used in pig husbandry only works ... -
Empowerment of Girls and Women in Rural Pakistan: Migration, Decision-making and Consciousness
(2020-11-24)This thesis analyses the effect of migration of men on women and children left behind in rural households in Pakistan. Part one analyses the impact on left-behind women’s participation in household decisions and number of ... -
Iron isotope fractionation in arable soil and graminaceous crops
(2020-11-24)Soils contain large quantities of Fe, however, the Fe-solubility is very low. Plants have developed two efficient strategies to secure Fe uptake from soil under Fe-deficient conditions: (i) the sequential acidification-r ... -
The role of post-harvest supplementary light exposure for ripening and quality development of tomato fruit
(2020-11-23)The major aim of the present work was to evaluate the optimal exposure time and effects of red light and short periods of daily ultraviolet (UV) on the post-harvest quality of green tomato fruit during ripening. The ... -
Root-restricting layers in German agricultural soils: Extent, cause and management strategies
(2020-10-21)Subsoil, i.e., soil below 30 cm depth, harbours great amounts of water and nutrients. However, physical and chemical barriers for vertical root elongation may restrict plants from accessing subsoil resources. Such ... -
Characterization of Root System Architectures from Field Root Sampling Methods
(2020-10-21)<strong>Background and objectives:</strong> The root system architecture (RSA) of a plant determines the plant’s ability to capture resources efficiently from the soil and directly linked to plant performance. The development ... -
Environment-dependent regulation of flowering time in a barley (Hordeum vulgare L.) MAGIC population
(2020-10-21)Barley (Hordeum vulgare L.) is used as a source for food and feed and is the fourth widely cultivated cereal world-wide. Flowering time is a complex trait controlled by endogenous and environmental factors that marks ... -
Genetic and molecular analysis of drought stress adaptation in cultivated and wild barley
(2020-10-07)Drought tolerance breeding is an integral part of modern-day agriculture for sustained crop production. In this study, we employed forward and reverse genetics tools to understand and improve drought stress adaptation in ... -
Analyses on the role of non-state actors for the implementation of Sustainable Development Goals
(2020-09-17)The 2030 Agenda for Sustainable Development, adopted by United Nations (UN) Member States in September 2015, aims to solve world sensitive sustainability issues through 17 Sustainable Development Goals (SDGs) as focus ... -
Insights into the salt stress adaptation mechanisms of bread wheat genotypes using a systemic approach
(2020-09-17)Bread wheat is one of the most important crops for the human diet but the increasing soil salinization is causing yield reductions worldwide. The development of appropriate cultivars requires the elucidation of mechanisms ... -
Hygiene management in farm animal housing: Assessment of hygiene indicators and critical points in sanitation
(2020-09-04)Cleaning and disinfection together form an important aspect of hygiene management in livestock farming. The professional implementation of these hygiene measures can help to interrupt infection chains, prevent the spread ... -
Fütterungsstrategien zur Optimierung der Energie- und Nährstoffversorgung laktierender Milchkühe
(2020-09-01)Eine effiziente Nutzung von Energie und Nährstoffen spielt nicht nur vor dem Hintergrund einer bedarfsdeckenden Versorgung der Kühe, sondern auch im Hinblick auf die Umweltwirkung und die Wirtschaftlichkeit der Milchkuhhaltung ... -
Evaluating Novel Vector Control Strategies: Modeling the impact of gene editing for malaria elimination in the Democratic Republic of Congo
(2020-08-06)The tremendous burden of malaria has led to renewed efforts focusing on malaria elimi-nation in the high burden countries. However, to achieve elimination, novel tools includ-ing driving-Y gene drive mosquitoes may be ... -
Development of a one-step three dimensional approach for the phase unwrapping process in a differential InSAR stack based on Small BAseline Subset (SBAS) interferograms
(2020-08-04)Differential Interferometric Synthetic Aperture Radar (D-InSAR) is a unique technique to detect and map deformations of the Earth's surface over large temporal and spatial scales. Processing a whole stack of multitemporal ... -
Broken Roads and Broken Laws: How Infrastructure and Law Enforcement Shape Amazonian Deforestation Frontiers
(2020-06-29)Deforestation of tropical rainforests contributes significantly to global climate change and accelerated biodiversity loss. To mitigate these impacts, the goal of drastically reducing tropical deforestation has been a ... -
Ripening-delaying peptides and their applicability to steer quality development of climacteric fruits
(2020-06-24)Processes extending the shelf-life of climacteric fruits play an important role in increasing sustainability of global food supply. As consequence of uncontrolled ripening process, significant losses in quantity and quality ... -
Optimization of point grids in regional satellite gravity analysis using a Bayesian approach
(2020-03-25)The subject of this thesis is the global and regional gravity field determination from GOCE data using the short arc approach. The focus is on the extension of the regional method regarding an adaption of the model resolution ... -
Influences on the activity and lying behavior of lactating dairy cows with particular attention to lameness
(2020-03-19)Lameness, which is usually the cause of a painful claw disease, continues to be the third most common reason for culling on dairy-producing farms in Germany. Claw diseases are not only painful, affecting both health and ...
