Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    We will mail you new results for this query: keywords==growth chambers
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LED light requirements ... for greenhouses and growth rooms
Nederhoff, E.M. - \ 2011
Practical Hydroponics & Greenhouses 119 (2011). - ISSN 1321-8727 - p. 32 - 35.
glastuinbouw - lichtgevende dioden - kastechniek - cultuurmethoden - groeikamers - nederland - greenhouse horticulture - light emitting diodes - greenhouse technology - cultural methods - growth chambers - netherlands
LEDs have potential for use as grow lights in greenhouses to supplement low natural light levels, and also for use in growth rooms and 'plant factories' as the main light source. The light spectrum is critical. Unfortunately, it seems that there is not a simple recipe freely available for growing 'any' crop successfully long-term with LED light only.
Temperatuuronderzoek bij tomaat :effect van een tijdelijke temperatuurverlaging (DROP) op groei, ontwikkeling en productie
Dieleman, J.A. ; Raaijmakers, E. ; Meinen, E. - \ 2005
Wageningen : Plant Research International (Nota / Plant Research International 360) - 42
solanum lycopersicum - tomaten - luchttemperatuur - kritische temperatuur - groeifactoren - groeitempo - plantenontwikkeling - gewasproductie - groeikamers - milieubeheersing - tomatoes - air temperature - critical temperature - growth factors - growth rate - plant development - crop production - growth chambers - environmental control
Om na te gaan op welk moment van de dag de plant het meest gevoelig is voor temperatuur is een experiment uitgevoerd in klimaatkamers. Om na te gaan wat het effect is van een tijdelijke temperatuurverlaging na zonsopkomst op groei en productie van tomaten is een kasexperiment uitgevoerd.Voor de praktijk betekenen de resultaten dat een temperatuurdaling bij jonge planten beter niet toegepast kan worden, omdat dit ten koste gaat van de opbouw van het bladoppervlak en daarmee ook van de groei. Bij planten met voldoende bladoppervlak heeft een temperatuurdaling in de ochtend geen negatieve effecten op gewasgroei en productie
Teeltkundige consequenties van energiebesparende klimaatscenario's in de champignonteelt
Amsing, J.G.M. ; Swinkels, H.A.T.I. - \ 2002
Horst : PPO Paddestoelen (Rapport PPO 2002-6) - 20
agaricus bisporus - energiebehoud - groeikamers - relatieve vochtigheid - kooldioxideverrijking - bodemtemperatuur - energiebesparing - energy conservation - growth chambers - relative humidity - carbon dioxide enrichment - soil temperature - energy saving
Het forceren van asperges in een geconditioneerde ruimte = Forcing of white asparagus in a climatised room
Poll, J.T.K. ; Berg, W. van den; Kramer, C.F.G. - \ 1995
Lelystad : ␛PPAGV (Verslag / Proefstation voor de Akkerbouw en de Groenteteelt in de Vollegrond nr. 193) - 62
asparagus - forceren van planten - groeikamers - forcing - growth chambers
Physical description of transport processes inside an Open Top Chamber in relation to field conditions
Jetten, T.H. - \ 1992
Agricultural University. Promotor(en): L. Wartena; A.F.G. Jacobs. - S.l. : Jetten - ISBN 9789054850113 - 159
microklimatologie - groeikamers - laboratoria - experimenten - experimenteel veldonderzoek - microclimatology - growth chambers - laboratories - experiments - field experimentation
<p>The impact of ozone, nitrogen oxides and other air pollutants on plants in natural vegetations cannot be described by simple exposure-yield response relationships. Outdoor experiments in which plants are exposed to ambient air pollutant levels yield conflicting results from year to year because the interacting environmental effects are complex and not constant. The best way to study the effects of air pollutants on plants is still one of the issues scientists are dealing with.</p> <p>The experimental design plays an important role in extrapolating the experimental results to real field conditions. To determine the impact of air pollutants on a crop requires growing conditions which are as natural as possible and the simultaneous control of ambient pollutant levels.</p> <p>The Open Top Chamber is one of the experimental set-ups to study the effect of air pollutants on plants. The original objective of the OTC design was to create an environment closely resembling field conditions while, at the same time, allowing control of air quality. The U.S. NCLAN programme was the first to use OTC's on a large scale. Nowadays the use of OTC's shifts from air pollutant exposure experiments to carbon dioxide fumigation experiments. OTC's have been used by KEMA to study the effects of air pollution on natural vegetation, in particular on the biomass production of agricultural crops in The Netherlands. The chamber consists of a cylindrical construction (diameter: 3 m; height: 3 m) with an open top through which filtered or non-filtered air is blown by a fan. Gaseous air pollutants can be added simultaneously to the incoming air.</p> <p>Experimental results have shown differences in plant growth and development between non-filtered OTC's and ambient plots. It is obvious that the use of OTC's introduces a degree of artificiality which makes it impossible to duplicate field conditions exactly.</p> <p>The major aims of the present study are:<br/> - to give a physical description of the transport processes (mass, momentum and energy) inside a KEMA-type OTC in relation to field conditions,<br/> - to determine the influence of the ventilation rate and the atmospheric boundary layer on the turbulent transport processes inside an OTC.</p> <p>The study is composed of a theoretical as well as an experimental part. An OTC identical to the KEMA-type OTC was situated at the weather station of the Agricultural University's Meteorological Department. Broad beans were grown in the chamber. Wind velocity, temperature, humidity, radiation and concentrations of gaseous air pollutants were continuously measured at various positions inside and outside the OTC. Turbulence parameters were measured occasionally (wind velocity, temperature fluctuations).</p> <p>The experimental results have been used to derive the prior conditions needed for the two models used and served as a tool to verify the simulation results. The first model simulates the turbulent exchange processes inside and outside the OTC. The model has been used to determine the influence of the OTC environment, ventilation rate and plants on mean air flow and turbulence inside the chamber. The second model is a resistance model which has been developed primarily to calculate the mass and energy fluxes to or from various parts of the OTC system. The model yields information about the temperature, humidity and ozone concentration inside the chamber in relation to field conditions. A special module calculates the bulk exchange processes between soil-vegetation and atmosphere inside as well as outside an OTC.</p> <p>We conclude that typical OTC effects on the chamber microclimate such as<br/> - filter effects,<br/> - a 10-20% reduction of global and PAR radiation load, an increase of long-wave radiation intensity<br/> - a mean temperature increase of the order of 1 K,<br/> - a mean vapour pressure deficit increase of the order of 1 mbar, cannot be prevented without creating a kind of laboratory chamber. Furthermore, the typical non-natural flow pattern cannot be changed without removing the whole OTC- configuration. The exposure- response curves derived under OTC conditions cannot be used directly to estimate a quantitative effect under field conditions. An extrapolation of the exposure-response curves derived under OTC conditions to field conditions taking into account the differences in microclimate between OTC and field conditions can improve the quality of the experimental results.</p>
The influence of the form of nitrogen nutrition on uptake and distribution of cadmium in lettuce varieties.
Florijn, P.J. ; Nelemans, J.A. ; Beusichem, M.L. van - \ 1992
Journal of Plant Nutrition 15 (1992). - ISSN 0190-4167 - p. 2405 - 2416.
assimilatie - cadmium - cultivars - groeikamers - lactuca sativa - slasoorten - vloeibare kunstmeststoffen - metalen - stikstof - rassen (taxonomisch) - bodemaciditeit - bodem ph - rassen (planten) - assimilation - growth chambers - lettuces - liquid fertilizers - metals - nitrogen - races - soil acidity - soil ph - varieties
Rozenvermeerdering onder koud (rood) licht hoopvol.
Lamerichs, L.L.J. ; Pol, P.A. van de - \ 1989
Vakblad voor de Bloemisterij 44 (1989)23. - ISSN 0042-2223 - p. 42 - 43.
snijbloemen - groeikamers - licht - fotoperiode - fotoperiodiciteit - schaduw - vegetatieve vermeerdering - rosa - cut flowers - growth chambers - light - photoperiod - photoperiodism - shade - vegetative propagation
Zijn cellen met meerdere teeltlagen een goed alternatief voor kassen? : een technisch-economische analyse ten behoeve van de tuinbouw in Nederland
Laurs, J.J. ; Huys, J.P.G. - \ 1984
Wageningen : IMAG (Nota / IMAG no. 99) - 18
toepassingen - capaciteit - teelt - efficiëntie - energie - energiegebruik - brandstofverbruik - groeikamers - cultuurmethoden zonder grondbewerking - productiekosten - applications - capacity - cultivation - efficiency - energy - energy consumption - fuel consumption - growth chambers - no-tillage - production costs
Klimaatseisen in batterijstallen
Ketelaars, E.H. ; Zeelen, H.H.M. - \ 1984
De Pluimveehouderij 14 (1984)14. - ISSN 0166-8250 - p. 9 - 11.
huisvesting, dieren - dierhouderij - dierenwelzijn - batterijkooien - batterijhuisvesting - lichaamstemperatuur - eierproducten - eieren - koorts - groeikamers - hennen - pluimveehokken - productiviteit - rentabiliteit - animal housing - animal husbandry - animal welfare - battery cages - battery husbandry - body temperature - egg products - eggs - fever - growth chambers - hens - poultry housing - productivity - profitability
In geconditioneerde omstandigheden, klimaatcellen van de Landbouwhogeschool, worden leghennen op twee verschillende huisvestingssystemen, batterijkooien en volledig rooster, gehouden. De produktie van eieren en warmte kan zo gemeten worden. In dit artikel wordt het resultaat van twee experimenten beschreven
The growth of crops under plastic greenhouses : controlled environment agriculture = De groei van gewassen in plastickassen : plantenteelt onder gecontroleerde omstandigheden
Anonymous, - \ 1974
Wageningen : [s.n.] (Literatuurlijst / Centrum voor landbouwpublikaties en landbouwdocumentatie no. 3651)
bibliografieën - cellulose - kassen - groeikamers - tuinbouw - kunststoffen - teelt onder bescherming - eiwitten - macromoleculaire stoffen - synthetische materialen - bibliographies - greenhouses - growth chambers - horticulture - plastics - protected cultivation - proteins - macromolecular materials - synthetic materials
Climate rooms as a tool for measuring physiological parameters for models of photosynthetic systems
Gaastra, P. - \ 1970
Wageningen : [s.n.] (Gestencild verslag / Centrum voor plantenfysiologisch onderzoek no. 47) - 12
biologische technieken - gegevens verzamelen - uitrusting - schatting - experimenten - groeikamers - meting - methodologie - fotosynthese - plantenfysiologie - registreren - biological techniques - data collection - equipment - estimation - experiments - growth chambers - measurement - methodology - photosynthesis - plant physiology - recording
Some comparisons between radiation in growth rooms and radiation under natural conditions
Gaastra, P. ; Chouard, P. ; Bilderling, N. de - \ 1970
Wageningen : [s.n.] (Publikatie / Stichting centrum voor plantenphysiologisch onderzoek no. 91) - 12
kunstlicht - groeikamers - licht - verlichting - fotoperiode - fotoperiodiciteit - plantenfysiologie - schaduw - artificial light - growth chambers - light - lighting - photoperiod - photoperiodism - plant physiology - shade
Possibilities and limitations of controlled environments for ecological and physiological investigations
Gaastra, P. - \ 1969
Wageningen : [s.n.] (Publication / Plantphysiological research centre no. 86) - 1
biologische technieken - uitrusting - experimenten - groeikamers - methodologie - microbiologie - technieken - biological techniques - equipment - experiments - growth chambers - methodology - microbiology - techniques
An assembly for routine measurements of photosynthesis, respiration and transpiration of intact plants under controlled conditions
Louwerse, W. ; Oorschot, J.L.P. van - \ 1969
Wageningen : [s.n.] (Mededeling / Instituut voor biologisch en scheikundig onderzoek van landbouwgewassen no. 400) - 11
sporenplanten - groeikamers - plantenfysiologie - onderzoek - wetenschap - wetenschappelijk onderzoek - cryptogams - growth chambers - plant physiology - research - science - scientific research
Photosynthesis and transpiration under controlled environmental conditions
Bierhuizen, J.F. ; Slatyer, R.O. - \ 1964
Wageningen : [s.n.] (Technical bulletin / Institute for land and water management research, Wageningen, The Netherlands no. 36) - 44
fotosynthese - transpiratie - evapotranspiratie - groeikamers - photosynthesis - transpiration - evapotranspiration - growth chambers
An assembly for the continuous recording of CO2 exchange and transpiration of whole plants
Oorschot, J.L.P. ; Belksma, M. - \ 1961
Wageningen : [s.n.] (Mededeling / Instituut voor biologisch en scheikundig onderzoek van landbouwgewassen no. 198) - 13
katabolisme - chemie - evapotranspiratie - groeikamers - instrumenten (meters) - laboratoriumuitrusting - laboratoriummethoden - fotosynthese - plantenfysiologie - ademhaling - transpiratie - gasuitwisseling - kooldioxide - catabolism - chemistry - evapotranspiration - growth chambers - instruments - laboratory equipment - laboratory methods - photosynthesis - plant physiology - respiration - transpiration - gas exchange - carbon dioxide
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