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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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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The role of strigolactones and the fungal microbiome in rice during drought adaptation [PhD thesis]
Full text publicly available; under embargo until:2019-10-20
Andreo Jimenez, Beatriz \ 2017
drought resistance - drought - abiotic injuries - rice - oryza sativa - plant-microbe interactions - nutrient uptake - defence mechanisms - hormones - fungi - genes
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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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Modelling of ammonia volatilisation in fertilised and flooded rice systems [PhD thesis]
Khairudin, Nurulhuda \ 2017
oryza - flooded rice - ammonia - volatilization - modeling - dynamic modeling - flooded land - nitrogen
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Improving environmental sustainability of palm oil production in Thailand [PhD thesis]
Saswattecha, Kanokwan \ 2017
palm oils - sustainability - environmental protection - environmental management - environmental impact - greenhouse gases - emission - thailand
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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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Starch meets biotechnology : in planta modification of starch composition and functionalities [PhD thesis]
Xu, Xuan \ 2016
starch - potato starch - potatoes - solanum tuberosum - plant biotechnology - biotechnology - genetic engineering - transgenic plants - modified starches - phosphate - arabidopsis thaliana - plant breeding
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Hemp for textiles: plant size matters [PhD thesis]
Westerhuis, Willem \ 2016
cannabis sativa - fibre plants - textile fibres - textiles - photoperiod - hemp - plant fibres - plant density - harvesting date - sowing date - biobased materials

Abstract:
Fibre hemp (Cannabis sativa L.) may be an alternative to cotton and synthetic fibres as a raw material for textile yarn production in the European Union. The agronomic options to manipulate plant development and crop growth with the aim to optimise hemp long fibre production were investigated. Field trials with factors sowing density, sowing date, harvest time and variety were conducted. Stems were traditionally processed by retting, drying, breaking, and scutching.

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Agronomic and environmental studies of potato (Solanum tuberosum L.) and analysis of its value chain in Zimbabwe [PhD thesis]
Svubure, O. \ 2015
solanum tuberosum - potatoes - value chain analysis - food security - sustainability - use efficiency - models - agronomy - arable farming - zimbabwe
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Impact of climate change on microbial safety of leafy green vegetables [PhD thesis]
Liu, C. \ 2015
climatic change - leafy vegetables - vegetables - food safety - microorganisms - contamination - food contamination - escherichia coli - salmonella
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How mushrooms feed on compost: conversion of carbohydrates and linin in industrial wheat straw based compost enabling the growth of Agaricus bisporus [PhD thesis]
Jurak, E. \ 2015
mushrooms - mushroom compost - carbohydrates - degradation - substrates - composting - agaricus bisporus
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Characterization of sugar beet pulp derived oligosaccharides [PhD thesis]
Leijdekkers, M. \ 2015
sugarbeet - beet pulp - oligosaccharides - saccharification - biorefinery - feeds - fermentation
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Socio-economic impacts and determinants of parasitic weed infestation in rainfed rice systems of sub-Saharan Africa [PhD thesis]
N’cho, S.A. \ 2014
rice - agricultural production systems - crop production - weeds - parasitic weeds - striga hermonthica - striga asiatica - control - weed control - rainfed agriculture - economic impact - social factors - decision making - farmers - africa south of sahara - benin - cote d'ivoire - tanzania
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Continuous light on tomato : from gene to yield [PhD thesis]
Vélez Ramírez, A.I. \ 2014
solanum lycopersicum - tomatoes - light - crop production - crop yield - genes - tolerance - light regime - injuries - plant physiology
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Genetics and bioenergy potential of forage maize: deconstructing the cell wall [PhD thesis]
Torres, A.F. \ 2014
zea mays - maize - fodder crops - plant genetics - bioenergy - cell walls - bioethanol - bioconversion - feedstocks - fuel crops
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Designing and testing permanent vegetable production systems for the Red River Delta, Vietnam [PhD thesis]
Huong, P.T.T. \ 2014
vegetable growing - vegetables - cropping systems - plant protection - chemical control - profitability - labour requirements - vietnam
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Climate variability and change in Ethiopia : exploring impacts and adaptation options for cereal production [PhD thesis]
Kassie, B.T. \ 2014
zea mays - maize - climatic change - climate adaptation - simulation models - uncertainty - ethiopia
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Incentives for smallholders to enhance the production of quality cocoa beans in Ghana: the role of institutions [PhD thesis]
Quarmine, W. \ 2013
theobroma cacao - cocoa - cocoa beans - agricultural policy - quality - certification - community participation - ghana
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