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light, whereas phyB controls the photoreversible effects of low fluency ( Shinomura et al., 1996 ). Impact of Light Quality on Plants Plant productivity is not only influenced by light quantity through photosynthetic activity by which carbohydrates are

-related parameters of sweet pepper plants Acta Hort. 956 545 552 https://doi.org/10.17660/ActaHortic.2012.956.65 Marcelis, L.F.M. Broekhuijsen, A.G.M. Meinen, E. Nijs, E.M.F.M. Raaphorst, M.G.M. 2006 Quantification of the growth response to light

://www.uky.edu/ccd/sites/www.uky.edu.ccd/files/herbs.pdf > Litvin-Zabal, A.G. 2019 Quantifying the effects of light quantity and quality on culinary herb physiology. Iowa State Univ., Ames, PhD Diss Lopez, R.G. Runkle, E.S. 2008 Photosynthetic daily light integral during propagation influences rooting and growth

systems: the overstory and the understory. In the understory, the greatest competition comes from changes in light quantity and light quality ( Malézieux et al., 2009 ). In natural ecosystems, the understory is inhabited by plants that are shade tolerant

received by plants, the daily light integral (DLI) was calculated with the PPF detected at the heights of the plant canopy at certain growing stages ( Table 1 ) to further illustrate the light quantity of different illumination schedules. Fig. 4. The

reproductive state in many fruit crops ( Wilkie et al., 2008 ). Several studies in A. thaliana have revealed that the light quantity and quality affect the GI transcription ( Fowler et al., 1999 ; Mishra and Panigrahi, 2015 ). Our results showed that pDlGI

et al., 2014 ). Transient anthocyanin accumulation occurs with changes in light quantity and/or quality, and has been documented in a variety of plants including: tomato, Arabidopsis , maize, sorghum, rye, red cabbage, and mustard ( Chalker

, P.A. 1996 Light intensity and spectral quality affect fruit growth and shelf life of greenhouse-grown long English cucumber J. Amer. Soc. Hort. Sci. 121 1168 1173 Litvin, A.G. 2019 Quantifying the effects of light quantity and quality on culinary

anthocyanins are known to contribute to leaf color ( Gazula et al., 2007 ). Environmental factors such as light quantity, quality, and duration and temperature can strongly influence the accumulation of these pigments ( Owen and Lopez, 2015 ). In the present

regulates plant behavior depending on light quantity, quality, direction, and duration ( Chang et al., 2008 ; Dou et al., 2017 ; Figueiredo et al., 2008 ; Shafiee-Hajiabad et al., 2016 ). Daily light integral [the product of photosynthetic photon flux