Skip to main content
SLU publication database (SLUpub)
Conference paper - Peer-reviewed, 2016

Different Ratios of Red and Blue LEDs Light Affect on Coriander Productivity and Antioxidant Properties

Naznin, M. T.; Lefsrud, M.; Gravel, V.; Hao, X.


Light emitting diodes (LEDs) can be selected to target the wavelengths absorbed by plants, enabling the users to customize the wavelengths of light required for maximum production. The purpose of this study was to evaluate the growth and antioxidant accumulation in coriander plants cultured under various ratios of red to blue LEDs. Four light treatments including: red LEDs (100%) and three ratios of red (661 nm) to blue (449 nm) LEDs light (5:1, 10:1 and 19:1) at 120 mu mol m(-2) s(-1), were applied for this study. Coriander plants were cultured under different ratios of red to blue LEDs and were found to have an increase in the leaf and shoot number and fresh and dry mass than those plants cultured under 100% red LEDs. The highest fresh and dry mass accumulation were observed in plants cultured under the 10:1 ratio of red to blue LEDs but were not significantly different from the 19:1 ratio of red to blue LEDs. The coriander plants cultured under 100% red LEDs showed a significant decrease in antioxidant properties. This research will allow for improved selection of red to blue ratios of LEDs lighting for antioxidant rich leafy vegetables or spice production.


Coriandrum sativum; light-emitting diodes; light quality; spice crop

Published in

Acta Horticulturae
2016, Volume: 1134, pages: 223-229


    UKÄ Subject classification

    Renewable Bioenergy Research
    Food Science

    Publication Identifiers


    Permanent link to this page (URI)