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 publication year==1971)
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De deelneming van deskundigen aan rechtspraak : toegespitst op agrarische zaken [PhD thesis]
Visser, P. de \ 1971
law - forensic science - forensic medicine - legislation - tenancy - leases - rent - agriculture - netherlands - judicial organization - legal procedure
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An ultrastructural study of Olpidium brassicae and its transmission of tobacco necrosis virus [PhD thesis]
Temmink, J.H.M. \ 1971
distribution - epidemiology - nicotiana - olpidium brassicae - plant communities - plant diseases - plant disorders - plant pathogenic fungi - plant pathology - tobacco necrosis virus - plant protection - plant viruses - research - tobacco - vegetation
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Influence of environmental temperature on energy metabolism of growing pigs housed individually and in groups [PhD thesis]
Verstegen, M.W.A. \ 1971
pigs - zoology - care of animals
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Fertilizer requirements of cacao (Theobroma cacao L.) in South-Western Nigeria [PhD thesis]
Wessel, M. \ 1971
plant nutrition - fertilizers - manures - theobroma cacao - cocoa - soil science - botany - nigeria
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The drop of flowers and fruits in apple, with special reference to the June drop of Cox's orange pippin and its control with growth regulators [PhD thesis]
Wertheim, S.J. \ 1971
plant disorders - apples - malus - plant diseases - plant pathology - malformations - fasciation - cultural methods - plant nutrition - fertilizers - manures - botany - plant protection - pest control - disease control - plant physiology - plant development - flowers - fruits - plant organs
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Action of some herbicides in photosynthesis of Scenedesmus as studied by their effects on oxygen evolution and cyclic photophosphorylation [PhD thesis]
Rensen, J.J.S. van \ 1971
plant protection - herbicides - scenedesmus - pesticides - adverse effects - plants - phytotoxicity - nontarget effects - nontarget organisms - photosynthesis - toxic substances - chemistry - indicator plants - chemical factors
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Ultrastructure of the hen eggshell and its physiological interpretation [PhD thesis]
Simons, P.C.M. \ 1971
egg products - egg shell - eggs - zoology
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Studies on the plant parasitic nematode Tylenchorhynchus dubius [PhD thesis]
Sharma, R.D. \ 1971
plant pests - soil - nematoda - pratylenchus - heteroderidae - tylenchidae - tylenchorhynchus
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Intermitterende voeding bij tarwe [PhD thesis]
Slangen, J.H.G. \ 1971
plant nutrition - fertilizers - manures - triticum aestivum - wheat - hexaploidy - botany - yield increases - yield losses - yields
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Highly calcareous lacustrine soils in the Great Konya Basin, Turkey [PhD thesis]
Meester, T. de \ 1971
calcareous soils - calcium - clay soils - geology - lakes - maps - marl soils - sediment - soil - soil surveys - turkey
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Common scab and its control in seed-potato crops [PhD thesis]
Labruyere, R.E. \ 1971
propagation - solanum tuberosum - seed potatoes - plant diseases - actinomycetales - streptomycetaceae - streptomyces - plant pathogenic fungi
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Observations on the epidemiology of trichostrongylosis of calves [PhD thesis]
Kloosterman, A. \ 1971
veterinary science - hookworms - cattle - nematode infections
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Rhythms in stomatal opening of bean leaves = Ritmen in de opening van de huidmondjes bij de boon [PhD thesis]
Hopmans, P.A.M. \ 1971
cucurbita - pumpkins - transpiration - evapotranspiration
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De invloed van barnsteenzuur en fumaarzuur op de ijzerresorptie bij anemische biggen [PhD thesis]
Kempen, G.J.M. van \ 1971
succinic acid - fumaric acid - pigs - iron deficiency anaemia - anaemia
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De gewenste uitrusting van een dorp : een onderzoek onder de bevolking van Beekbergen, Lieren, en Oosterhuizen (Gemeente Apeldoorn) [PhD thesis]
Boks, A. \ 1971
sociology - rural communities - netherlands - veluwe - gelderland
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Water, heat and crop growth [PhD thesis]
Feddes, R.A. \ 1971
soil water - crops - soil temperature - thermal conductivity - yields - plant water relations - field crops - noord-holland

Abstract:
In this paper attention has mainly been paid to the effects of the physical environmental conditions on plant development. As local research object, part of the economically important horticultural region of Geestmerambacht was taken, situated in the Netherlands in the northern part of the province of North-Holland. This area is partly covered with heavy sea clay soils under insufficient water management, resulting in a one sided cropping pattern. This together with a fragmented parcelling and a poor accessibility makes cultivation of profitable intensively managed crops difficult.

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The effect of partial soil sterilization on plant parasitic nematodes and plant growth [PhD thesis]
Eissa, M.F.M. \ 1971
soil - nematoda - soil sterilization - soil fumigation - disinfestation - growth - crops - yield increases - yield losses - yields
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Polymer adsorption and its effect on colloidal stability : a theoretical and experimental study on the polyvinyl alcohol-silver iodide system [PhD thesis]
Fleer, G.J. \ 1971
colloids - industry - plastics - macromolecular materials

Abstract:
cum laude graduation (with distinction)

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Didactisch handelen : een terreinverkenning in verband met de practische scholing van aanstaande leraren [PhD thesis]
Bergeijk, J. van \ 1971
educational theory - learning theory - secondary education - teacher training - teachers - teaching - teaching methods - work
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On morphogenesis of lettuce leaves in relation to light and temperature [PhD thesis]
Bensink, J. \ 1971
lactuca sativa - lettuces
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