ISHS Acta Horticulturae 418: III International Symposium on Artificial Lighting in Horticulture
EFFECT OF PHOTON FLUX DENSITY ON CO2 FIXATION AND GROWTH OF ROSA HYBRIDA 'WHITE GEM' MICROCUTTINGS |
| Authors: | B. Matysiak, M. Kubik, M. Podwyszynska, J. Nowak |
| Keywords: | acclimatization, CO2 enrichment, light, micropropagation, Rosa |
| Abstract:
In vitro and ex vitro8-rooted microcuttings of Rosa hybrida 'White Gem' were grown at two photon flux densities (50 and 150 μmol m-2 s-1 PAR) and at two CO2 concentrations (350 and 1200 μmol mol-1). A photon flux density of 150 μmol m-2 s-1 increased dry weight of shoots and roots of in vitro and ex vitro-rooted plants, irrespective of the CO2 concentration applied. 14CO2 fixation of 12-weeks old plants was about 10 times higher than CO2 fixation of microcuttings. | |
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