ISHS Acta Horticulturae 797: International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions
ULTRAVIOLET-B RADIATION SUPPRESSED THE GROWTH AND ANTHOCYANIN PRODUCTION OF PERILLA PLANTS GROWN UNDER CONTROLLED ENVIRONMENTS WITH ARTIFICIAL LIGHT |
| Authors: | T. Nishimura, K. Ohyama, E. Goto, N. Inagaki, T. Morota |
| Keywords: | essential oil, kampo medicine, limonene, perillaldehyde, secondary metabolites |
| Abstract:
Perilla (Perilla frutescens Britt.) plants with red colored leaves were grown under ultraviolet-B radiation (UV-B) of 0, 0.21, and 0.88 W m-2 at a constant photosynthetic photon flux of 200 μmol m-2 s-1 provided by UV-B and fluorescent lamps, and an irradiation period of 16 h d–1. The leaf dry weight and leaf area of the plants were 19–23% and 14–19% smaller, and the concentration of anthocyanin (mg g-1 leaf DW) was 17–18% lower with UV-B than without, respectively. The concentrations of perillaldehyde and limonene (mg g-1 leaf DW), and the number of true leaves were not affected by the UV-B. The UV-B suppressed the growth and anthocyanin production, but had no effect on the concentrations of essential oil components in leaves of the plants. | |
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