Bioactive compound accumulation and growth of coriander (Coriandrum sativum L.) under different types of white LED lights in plant factory

D.T.P. Nguyen, M. Kitayama, N. Lu, M. Takagaki
Light quality is an important environmental factor affecting plant growth, development, and secondary metabolism, thus having impacts on plant yield and bioactive compound production. The purpose of this study is to evaluate the bioactive compound accumulation and growth of coriander plants (Coriandrum sativum L.) cultivated under various types of LED lights. Five types of white LEDs with different ratios of blue (B), green (G), red (R) and far-red (Fr) lights and a R:B LED as the control were applied to identify the optimal light spectrum for enhancing the growth and bioactive metabolite accumulation of coriander plants grown in plant factory. The results showed that both plant growth and bioactive compound production were affected by combining ratios of monochromatic lights in white LED. Plant biomass was highest under white LED with a B:G:R:Fr ratio of 8:29:53:10, and contents of bioactive metabolites including ascorbic acid and total phenolic contents in white LED treatments decreased slightly in comparison with those in control. These results demonstrated that white LED light can be used to produce coriander plants with high yield and good quality in plant factory.
Nguyen, D.T.P., Kitayama, M., Lu, N. and Takagaki, M. (2020). Bioactive compound accumulation and growth of coriander (Coriandrum sativum L.) under different types of white LED lights in plant factory. Acta Hortic. 1296, 921-928
DOI: 10.17660/ActaHortic.2020.1296.117
https://doi.org/10.17660/ActaHortic.2020.1296.117
light quality, total phenolic, antioxidant capacity, ascorbic acid, herb plant
English

Acta Horticulturae