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Identification and characterisation of Heterodera schachtii susceptibility genes AtPANB1 and HIPP27 in Arabidopsis thaliana
(2018-11-08)
Sedentary plant-parasitic cyst nematodes are obligate biotrophs that infect the roots of their host plant. Their parasitism is based on modification of infected root cells to form a hypermetabolic syncytium from which the ...
Long-term effects of childhood work on human capital formation, migration decisions, and earnings in rural Ethiopia
(2018-10-16)
In Ethiopia, a quarter of children are child laborers, of which one in every three works full-time. Currently, more children than ever before also combine schooling with work. In addition, although net primary school ...
The Ethiopian Agricultural Extension System and Its Role as a Development Actor: Cases from Southwestern Ethiopia
(2018-08-15)
Smallholder agriculture forms the backbone of the Ethiopian economy, supporting the majority of the country's population. Since the late 1960s, the state has been actively pursuing agricultural extension as a key means of ......
Kleinbäuerliche Landwirtschaft beschäftigt als Grundlage der äthiopischen Wirtschaft die Mehrheit der Bevölkerung des Landes. Seit den 1960er Jahren baut der äthiopische Staat die landwirtschaftliche Beratung als Mittel ......
Kleinbäuerliche Landwirtschaft beschäftigt als Grundlage der äthiopischen Wirtschaft die Mehrheit der Bevölkerung des Landes. Seit den 1960er Jahren baut der äthiopische Staat die landwirtschaftliche Beratung als Mittel ......
The impact on meat quality of strategies to improve feed conversion efficiency in pigs and the functional networks underpinning the relationship
(2018-09-20)
Feed efficiency (FE) is defined as a measure of efficiency in converting metabolizable energy acquired from macronutrients into body mass. The overall aims of this thesis were to identify genomic regions associated with ...
Farm-level impacts of policy instruments targeting plant protection products
(2018-09-25)
Plant protection is necessary to achieve high yields with high quality. The application of pesticides, however, leads to negative external effects to the environment. Society calls for stricter agri-environmental instruments ...
Genome-wide-association studies (GWAS) on the interaction between the cyst nematode Heterodera schachtii and Arabidopsis thaliana
(2018-10-12)
Plant-parasitic cyst nematodes are obligate sedentary parasites that infect the roots of a wide range of host plants. In research, the beet cyst nematode Heterodera schachtii infecting Arabidopsis thaliana is often used ...
Investment and land-use decision under consideration of uncertainty
(2018-09-17)
Investment and land use decisions pre-determine the distribution of other farm resources and thus constitute core farm activities. Investments at the farm level often include sunk costs, risks, returns-to-scale, investment ...
Host acceptability, suitability, interaction and establishment of two introduced Liriomyza leafminer endoparasitoids: Halticoptera arduine (Walker) (Hymenoptera: Pteromalidae) and Chrysocharis flacilla (Walker) (Hymenoptera: Eulophidae) in Kenya
(2018-08-28)
Liriomyza (Diptera: Agromyzidae) leafminers are pests of economic importance to the production of horticultural crops in East Africa. In the scope of a classical biological control program in East Africa, two parasitoids ......
The Effect of Government Transfers on Poverty and Inequality: Three Different Perspectives about Decentralization and Social Policies in Bolivia
(2018-10-12)
Poverty and inequality in Bolivia have reduced to a great extent in the last 20 years in Bolivia. There are mixed opinions regarding the role of the state in this overall positive result, and consistent evidence of state ...
Allocation of Payments for Environmental Services through auctions & the role of social interaction
(2018-09-28)
This thesis contributes to the study of the use of auctions in the allocation of contracts of payments for environmental services. The focus of the research is on the role of social interaction as a learning source for ...