PhD theses

All Wageningen University PhD theses

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    Wageningen PhD theses


    This database contains bibliographic descriptions of all Wageningen University PhD theses from 1920 onwards. It is updated on a daily basis by WUR Library.

    Author abstracts and/or summaries are added to all descriptions. A link to the full text dissertation is added to the bibliographic description. In a few cases, no electronic version is available, mostly because of copyright issues.

    Hard copies of all theses are available for loan at WUR Library. To request them, click the link Request this publication in the full record presentation. This is a fee based service.

    mail icon WUR Library, 9 july 2012

     

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    We will mail you new results for this query: (dissertatie/nummer=* AND category==502)
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Trends and prospects for the productivity and sustainability of home garden systems in southern Ethiopia [PhD thesis]
Mellisse, Beyene Teklu \ 2017
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Using yield gap analysis to give sustainable intensification local meaning [PhD thesis]
Silva, João Vasco \ 2017
crops - yields - crop yield - modeling - simulation models - cereals - farming systems - yield losses
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Physiological responses of rice to increased day and night temperatures [PhD thesis]
Shi, Wanju \ 2017
crops - rice - oryza sativa - plant physiology - temperature - crop yield - grain - agronomy
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A comprehensive assessment of agriculture in lowlands of south Brazil: characterization and comparison of current and alternative concepts [PhD thesis]
Theisen, Giovani \ 2017
cropping systems - farming systems - crop management - lowland areas - wetlands - pampas - brazil - intensification - sustainability - productivity - indicators - soil management - rice - flooded rice - oryza sativa - maize - zea mays - glycine max - cover crops - livestock - rotation - mixed farming - seedbed preparation - farm machinery
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Agronomic and socioeconomic sustainability of farming systems : a case in Chencha, South Ethiopia [PhD thesis]
Full text publicly available; under embargo until:2019-10-17
Dersseh, Waga Mazengia \ 2017
potatoes - solanum tuberosum - ethiopia - food security - farming systems - mixed farming - sustainability - optimization - efficiency - farm surveys - household surveys - socioeconomics - self sufficiency - profits - training - agronomic characteristics - productivity - soil fertility - rotation - animal feeding - improved varieties - inorganic fertilizers
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Mechanisms of vegetative propagation in bulbs : a molecular approach [PhD thesis]
Moreno-Pachón, Natalia \ 2017
ornamental bulbs - tulipa - lilium - vegetative propagation - flowering date - gene regulation - genes - transcriptomes - dna sequencing - regeneration - shoot apices
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Lactic acid fermentation of human excreta for agricultural application [PhD thesis]
Andreev, Nadejda \ 2017
lactic acid - manure fermentation - fermentation - fertilizers - human faeces - biochar - composting
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On the role of soil organic matter for crop production in European arable farming [PhD thesis]
Hijbeek, Renske \ 2017
soil fertility - soil fertility management - soil management - soil conservation - organic matter - soil organic matter - nitrogen - nitrogen fertilizers - green manures - manures - straw - soil carbon sequestration - cover crops - crop yield - yields - meta-analysis - food security - europe - drivers - barriers
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Citizen science and remote sensing for crop yield gap analysis [PhD thesis]
Beza, Eskender Andualem \ 2017
crop yield - maximum yield - yield forecasting - remote sensing - models - small farms - data collection
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Modelling the dynamic interactions between food production and ecosystem services: a case study in Benin [PhD thesis]
Duku, Confidence \ 2017
ecosystem services - modeling - food production - case studies - hydrology - irrigation - forests - woodlands - climatic change - nature conservation - food security - benin
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Is there life after hype for Jatropha? : exploring growth and yield in Indonesia [PhD thesis]
Tjeuw, Juliana \ 2017
fuel crops - jatropha curcas - crop yield - new crops - feasibility studies - indonesia - cultural methods - cultivation - disincentives - biobased economy - cropping systems - intercropping

Abstract:
Jatropha curcas L. is a biofuel crop that has not lived up to expectations due to a combination of hype and disappointment and biophysical factors. This PhD thesis is based on the plant production component of the JARAK programme which aimed to bridge the gap between truth and fiction. This study reviewed the jatropha hype and disappointment and further investigated the hypothesis that jatropha growth and yield are limited by biophysical factors of plant characteristics, cropping systems, and management. The review of the hype and disappointment shows that despite the high expectations fuelled by market pull and technology push, and numerous actors, the commercial potential for jatropha is limited by policy and governance, economics, social, technology, logistical, and environmental. A study of the biophysical components confirms that no current varieties suited to different cropping systems and locations are available.

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Optimization of productivity and quality of irrigated tomato (Solanum lycopersicum L.) by smallholder farmers in the Central Rift Valley area of Oromia, Ethiopia [PhD thesis]
Full text publicly available; under embargo until:2019-05-29
Gemechis, Ambecha O. \ 2017
solanum lycopersicum - irrigation - crop production - optimization - photosynthesis - chlorophyll - gas exchange - water use efficiency - crop yield - ethiopia
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Crop growth and development in closed and semi-closed greenhouses [PhD thesis]
Qian, Tian \ 2017
crops - crop production - growth - greenhouse crops - greenhouse horticulture - climate - semi-closed greenhouses - photosynthesis - temperature
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Exploring opportunities for rural livelihoods and food security in Central Mozambique [PhD thesis]
Leonardo, Wilson José \ 2017
agricultural production systems - food security - crop production - livelihoods - small farms - biofuels - farming systems - models - intensification - mozambique
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A generic method to analyse yield gaps in feed-crop livestock systems [PhD thesis]
Linden, Aart van der \ 2017
animal production - fodder crops - livestock feeding - crop production - crop yield - crop ecology - quantitative analysis - beef production - farming systems
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Understanding the productivity of cassava in West Africa [PhD thesis]
Ezui, Kodjovi Senam \ 2017
manihot esculenta - cassava - crop production - rainfed agriculture - drought - crop yield - water use efficiency - radiation use efficiency - fertilizers - togo - ghana - west africa
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Exploring the potential of an Andean fruit: an interdisciplinary study on the cape gooseberry (Physalis peruviana L.) value chain [PhD thesis]
Olivares Tenorio, Mary Luz \ 2017
physalis peruviana - value chain analysis - supply chain management - keeping quality - storage life - storage - phytochemicals - andean group
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On yield gains and yield gaps in wheat-maize intercropping : opportunities for sustainable increases in grain production [PhD thesis]
Gou, Fang \ 2017
zea mays - triticum - intercropping - crop yield - grain crops - crop production - models - photosynthesis
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Super-performance in a palm species [PhD thesis]
Jansen, Merel \ 2016
chamaedorea elegans - understorey - tropical forests - spatial variation - leaves - growth - population ecology - defoliation - genetic variation
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Agricultural intensification in Nepal, with particular reference to systems of rice intensification [PhD thesis]
Uprety, Rajendra \ 2016
rice - oryza sativa - nepal - asia - south asia - intensification - livelihoods - livelihood strategies - farming systems - farming - crop management - fertilizers - nutrients - irrigation - varieties
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