Jeon, Y.-M. Son, K.-H. Kim, S.-M. Oh, M.-M. 2024-01-20T00:32:17Z 2024-01-20T00:32:17Z 2021-08-31 2017-10 2211-3452 https://pubs.kist.re.kr/handle/201004/122261 The aim of this study was to determine the effect of irradiation of various spectrums generated by light-emitting diodes (LEDs) on the growth and accumulation of bioactive compounds in dropwort (Oenanthe stolonifera). Dropwort plants with 2-3 offshoots were grown under three monochromatic LEDs: red (R; 654 nm), blue (B; 456 nm), and green (G; 518 nm), thirteen combinations of R and B (R:B = 9:1, 8:2, 7:3, and 6:4), RB with G (R:G:B = 9:1:0, 8:1:1, 7:1:2, and 6:1:3), and RB with white (W) (R:W:B = 8:2:0, 8:1:1, 7:2:1, 7:1:2, and 6:2:2) and fluorescent lamps (control) for 6 weeks. R LEDs improved growth characteristics, including plant height and fresh and dry weights of shoots. Combined LEDs with 70-80% red wavelength resulted in the highest values in fresh weight. The B LED treatment resulted in the highest total phenolic and anthocyanin content in dropwort leaves, which increased in the combined LEDs treatments as the proportion of blue wavelength increased. Further, the RWB treatments, regardless of the ratio, resulted in higher anthocyanin contents than that in the RB and RGB treatments. Persicarin content was also significantly higher in the B treatment than in the R and G treatments. However, compared to the RB treatments, persicarin content in the RGB and RWB treatments was decreased, on average, by 72 and 64%, respectively. We suggested that the light spectrum is closely related to the enhancement of growth and bioactive compounds. Our findings provide basic information for designing lighting systems in plant factories to improve the growth and bioactive compounds in dropwort. ？ 2017, Korean Society for Horticultural Science and Springer-Verlag GmbH Germany. English Korean Society for Horticultural Science Growth and bioactive compounds as affected by irradiation with various spectrum of light-emitting diode lights in dropwort Article 10.1007/s13580-017-0354-3 1 Horticulture Environment and Biotechnology, v.58, no.5, pp.467 - 478 Horticulture Environment and Biotechnology 58 5 467 478 scie scopus kci ART002276650 000416381600006 2-s2.0-85032265020 Horticulture Agriculture Article 2 LETTUCE CULTIVARS BLUE-LIGHT RED-LIGHT OENANTHE-JAVANICA LEAF SHAPE GREEN ANTHOCYANINS PHOTOSYNTHESIS PERSICARIN TISSUES anthocyanins light quality persicarin plant factory total phenolic content