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ISHS Acta Horticulturae 1037: International Symposium on New Technologies for Environment Control, Energy-Saving and Crop Production in Greenhouse and Plant Factory - Greensys 2013

THE USE OF DAYLIGHT PLANT CUVETTES TO MEASURE CLIMATE PARAMETERS INDEPENDENTLY

Authors:   G. Akyazi , H.-J. Tantau
Keywords:   ZINEG, Pelargonium zonale, net-photosynthesis, daylight-plant-cuvette
DOI:   10.17660/ActaHortic.2014.1037.63
Abstract:
Three computer controlled Daylight Plant Cuvettes (DPC) were used to investigate the reaction of Pelargonium zonale ‘Präludium’ to partly extreme climate situations. Net photosynthesis rate and destructive ratings served for a comparison of the respective experiments. By increasing the CO2- concentration from 400 vpm to 800 vpm a considerably higher net photosynthesis was measured. Only slight effects were seen by increasing the CO2- concentration to 1,200 vpm. Reduction of the PPFD led to significantly reduced results at the destructive ratings.

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