Influence of the light color and microbiological inoculums on the zonal pelargonium quality and microbiological and enzymatic state of the substrate
Anita Schroeter-Zakrzewska
Department of Ornamental Plants, Poznań University of Life Sciences, Dąbrowskiego 159, 60-594 Poznań, PolandAgnieszka Wolna-Maruwka
Department of General and Environmental Microbiology, Poznań University of Life Sciences, Szydłowska 50, 60-656 Poznań, PolandKlaudia Borowiak
Department Ecology and Environmental Protection, Poznań University of Life Sciences, Piątkowska 94C, 60-649 Poznań, PolandAbstract
Two inoculums: Effective Microorganisms (EM) specimen available on the market and microbiological BAF1 inoculum, were applied in the experiment. The plants were cultivated in the growth chamber equipped with shelves with fluorescent or LED lamps. The highest number of inflorescences was under the influence of white color of light emitted by fluorescent lamps and blue color of light emitted by LED lamps, especially after application of BAF1 inoculum. Irrespective of microbiological inoculum, no significant effect of the color of light and type of lamps on such traits as height of leaves layer, number of leaves, greening index of leaves (SPAD) and length of inflorescences, was found. The white color light emitted by fluorescent lamps stimulated actinobacteria multiplication, especially after EM application. Regardless of the inoculum application, it was the blue color light emitted by LED lamps that stimulated the multiplication of moldy fungi. After the use of fluorescent lamps, the increase in dehydrogenase activity was observed, especially after the application of BAF1 inoculum. The activity of acid phosphatase was stimulated by blue and white+blue light emitted by LED lamps. The increase in the activity of urease was observed under fluorescent lamps emitting the green, blue and white color of light, after the application of EM.
Keywords:
light quality, LEDs, microorganisms, enzymatic activityReferences
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Department of Ornamental Plants, Poznań University of Life Sciences, Dąbrowskiego 159, 60-594 Poznań, Poland
Department of General and Environmental Microbiology, Poznań University of Life Sciences, Szydłowska 50, 60-656 Poznań, Poland
Department Ecology and Environmental Protection, Poznań University of Life Sciences, Piątkowska 94C, 60-649 Poznań, Poland
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