Among various environmental factors, light is one of the most important variables affecting the phytochemical concentrations in plant (Samuolien˙e et al., 2012). Red and blue light have the greatest impact on plant growth and biosynthesis of secondary metabolites because they are the major energy sources for photosynthetic CO2 assimilation in plants (Lin et al., 2013). For example, exposure tored light has been shown to increase lycopene accumulation in tomato (Liu et al., 2009)