[Anonymous. (1992). Solar and Ultraviolet Radiation. IARC Monographs, Lyon, France.]Search in Google Scholar
[Anonymous. (2012). Which regions of the electromagnetic spectrum do plants use to drive photosynthesis? Heliospectra. Available at: www.heliospectra.com (accessed 15.06.2016)]Search in Google Scholar
[Bian, Z. H., Cheng, R. F., Yang, Q. C., Wang, J. Lu, C. (2016). Continuous light from red, blue, and green light-emitting diodes reduces nitrate content and enhances phytochemical concentrations and antioxidant capacity in lettuce. J. Amer. Soc. Horticult. Sci., 141 (2), 186–195.10.21273/JASHS.141.2.186]Search in Google Scholar
[Bliznikas, Z., Žukauskas, A., Samuoliene, G., Viršile, A., Brazaityte, A., Jankauskiene, J, Duchovskis, P., Novičkovas, A. (2012). Effect of supplementary pre-harvest LED lighting on the antioxidant and nutritional properties of green vegetables. Acta Horticult.,939, 85–91.10.17660/ActaHortic.2012.939.10]Search in Google Scholar
[Brazaitytė, A., Duchovskis, P., Urbonavičiūtė, A., Samuolienė, G., Jankauskienė, J., Kasiulevičiūtė-Bonakėrė, A., Bliznikas, Z., Novičkovas, A., Breivė, K., Žukauskas, A. (2009). The effect of light-emitting diodes lighting on cucumber transplants and after-effect on yield. Zemdirbyste-Agriculture, 96 (3), 102–118.]Search in Google Scholar
[Brazaitytė, A., Virsilė, A., Samuolienė, G., Jankauskienė, J., Sakalauskienė, S., Sirtautas, R., Novičkovas, A., Dabašinskas, L., Vaštakaitė, V., Miliauskienė, J., Duchovskis, P. (2016). Light quality: Growth and nutritional value of microgreens under indoor and greenhouse conditions. Acta Horticult., 1134, 277–284.10.17660/ActaHortic.2016.1134.37]Search in Google Scholar
[Brown, C. S., Schuerger, A. C., Sager, J. C. (1995). Growth and photomorphogenesis of pepper plants under red light-emitting diodes with supplemental blue or far-red lighting. J. Amer. Soc. Horticult. Sci., 120 (5), 808–813.10.21273/JASHS.120.5.808]Search in Google Scholar
[Chang, C. L., Chang, K. P. (2014). The growth response of leaf lettuce at different stages to multiple wavelength-band light-emitting diode lighting. Sci. Horticult., 179, 78–84.10.1016/j.scienta.2014.09.013]Search in Google Scholar
[Chen, X. L., Xue, X. Z., Guo, W. Z., Wang, L. C., Qiao, X. J. (2016). Growth and nutritional properties of lettuce affected by mixed irradiation of white and supplemental light provided by light-emitting diode. Sci. Horticult., 200, 111–118.10.1016/j.scienta.2016.01.007]Search in Google Scholar
[D’Souza, C., Yuk, H. G., Khoo, G. H., Zhou, W. (2015). Application of light-emitting diodes in food production, postharvest preservation, and microbiological food safety. Compreh. Revi. Food Sci. Food Safety, 14 (6), 719–740.10.1111/1541-4337.12155]Search in Google Scholar
[Goto, E., Hayashi, K., Furuyama, S., Hikosaka, S., Ishigami, Y. (2016). Effect of UV light on phytochemical accumulation and expression of anthocyanin biosynthesis genes in red leaf lettuce. Acta Horticult., 1134, 179–186.10.17660/ActaHortic.2016.1134.24]Search in Google Scholar
[Hernández, R., Eguchi, T., Kubota, C. (2016). Growth and morphology of vegetable seedlings under different blue and red photon flux ratios using light-emitting diodes as sole-source lighting. Acta Horticult., 1134, 195–200.10.17660/ActaHortic.2016.1134.26]Search in Google Scholar
[Hernández, R., Kubota, C. (2016). Physiological responses of cucumber seedlings under different blue and red photon flux ratios using LEDs. Environ. Exper. Bot., 121, 66–74.10.1016/j.envexpbot.2015.04.001]Search in Google Scholar
[Hogewoning, S. W., Trouwborst, G., Maljaars, H., Poorter, H., van Ieperen, W., Harbinson, J. (2010). Blue light dose–responses of leaf photosynthesis, morphology, and chemical composition of Cucumis sativus grown under different combinations of red and blue light. J. Exper. Bot., 61 (11), 3107–3117.10.1093/jxb/erq132289214920504875]Search in Google Scholar
[Johkan, M., Shoji, K., Goto, F., Hashida, S. N., Yoshihara, T. (2010). Blue light-emitting diode light irradiation of seedlings improves seedling quality and growth after transplanting in red leaf lettuce. HortScience, 45 (12), 1809–1814.10.21273/HORTSCI.45.12.1809]Search in Google Scholar
[Johkan, M., Shoji, K., Goto, F., Hahida, S. N., Yoshihara, T. (2012). Effect of green light wavelength and intensity on photomorphogenesis and photosynthesis in Lactuca sativa. Environ. Exper. Bot.,75, 128–133.10.1016/j.envexpbot.2011.08.010]Search in Google Scholar
[Lee, M. J., Park, S. Y., Oh, M. M. (2015). Growth and cell division of lettuce plants under various ratios of red to far-red light-emitting diodes. Horticult. Environ. Biotechnol., 56 (2), 186–194.10.1007/s13580-015-0130-1]Search in Google Scholar
[Lee, M. J., Son, K. H., Oh, M. M. (2016). Increase in biomass and bioactive compounds in lettuce under various ratios of red to far-red LED light supplemented with blue LED light. Horticult. Environ. Biotechnol., 57 (2), 139–147.10.1007/s13580-016-0133-6]Search in Google Scholar
[Lefsrud, M. G., Kopsell, D. A., Sams, C. E. (2008). Irradiance from distinct wavelength light-emitting diodes affect secondary metabolites in kale. HortScience, 43 (7), 2243–2244.10.21273/HORTSCI.43.7.2243]Search in Google Scholar
[Li, Q., Kubota, C. (2009). Effects of supplemental light quality on growth and phytochemicals of baby leaf lettuce. Environ. Exper. Bot.,67 (1), 59–64.10.1016/j.envexpbot.2009.06.011]Search in Google Scholar
[Li, H., Tang, C., Xu, Z., Liu, X., Han, X. (2012). Effects of different light sources on the growth of non-heading Chinese cabbage (Brassica campestris L.). J. Agricult. Sci., 4 (4), 262–273.10.5539/jas.v4n4p262]Search in Google Scholar
[Lu, N., Maruo, T., Johkan, M., Hohjo, M., Tsukagoshi, S., Ito, Y., Ichimura, T., Shinohara, Y. (2012). Effects of supplemental lighting with light-emitting diodes (LEDs) on tomato yield and quality of single-truss tomato plants grown at high planting density. Environ. Control Biol., 50 (1), 63–74.10.2525/ecb.50.63]Search in Google Scholar
[Ménard, C., Dorais, M., Hovi, T., Gosselin, A. (2006). Developmental and physiological responses of tomato and cucumber to additional blue light. Acta Horticult., 711, 291–296.10.17660/ActaHortic.2006.711.39]Search in Google Scholar
[Mizuno, T., Amaki, W., Watanabe, H. (2011). Effects of monochromatic light irradiation by LED on the growth and anthocyanin contents in leaves of cabbage seedlings. Acta Horticult., 907, 179–184.10.17660/ActaHortic.2011.907.25]Search in Google Scholar
[Morrow, R. C. (2008). LED lighting in horticulture. HortScience, 43, 1947–195010.21273/HORTSCI.43.7.1947]Search in Google Scholar
[Nanya, K., Ishigami, Y., Hikosaka, S., Goto, E. (2012). Effects of blue and red light on stem elongation and flowering of tomato seedlings. Acta Horticult., 956, 261–266.10.17660/ActaHortic.2012.956.29]Search in Google Scholar
[Naznin, M. T., Lefsrud, M., Gravel, V., Hao, X. (2016). Different ratios of red and blue LED light effects on coriander productivity and antioxidant properties. Acta Horticult., 1134, 223–230.10.17660/ActaHortic.2016.1134.30]Search in Google Scholar
[Novickovas, A., Brazaitytė, A., Duchovskis, P., Jankauskienė, J., Samuolienė, G., Virsilė, A., Sirtautas, R., Bliznikas, Z., Zukauskas, A. (2012). Solid-state lamps (LEDs) for the short-wavelength supplementary lighting in greenhouses: Experimental results with cucumber. Acta Horticult., 927, 723–730.10.17660/ActaHortic.2012.927.90]Search in Google Scholar
[Olle, M., Viršile, A. (2013). The effects of light-emitting diode lighting on greenhouse plant growth and quality. Agricult. Food Sci., 22 (2), 223–234.10.23986/afsci.7897]Search in Google Scholar
[Ouzounis, T., Heuvelink, E., Ji, Y., Schouten, H. J., Visser, R. G. F., Marcelis, L. F. M. (2016). Blue and red LED lighting effects on plant biomass, stomatal conductance, and metabolite content in nine tomato genotypes. Acta Horticult., 1134, 251–258.10.17660/ActaHortic.2016.1134.34]Search in Google Scholar
[Pinho, P., Jokinen, K., Halonen, L. (2017). The influence of the LED light spectrum on the growth and nutrient uptake of hydroponically grown lettuce. Lighting Res. Technol., 49 (7), 866–881.10.1177/1477153516642269]Search in Google Scholar
[Rajapakse, N. C., Young, R. E., McMahon, M. J. and Oi, R., (1999). Plant height control by photoselective filters: Current status and future prospects. HortTechnology, 9 (4), pp. 618–624.10.21273/HORTTECH.9.4.618]Search in Google Scholar
[Ryer, A. (1998). What is light? Light Measurement Handbook. International Light Inc., Newburyport, USA. 942 pp.]Search in Google Scholar
[Samuolienė, G., Urbonavičiūtė, A., Duchovskis, P., Bliznikas, Z., Vitta, P., Žukauskas, A. (2009). Decrease in nitrate concentration in leafy vegetables under a solid-state illuminator. HortScience, 44 (7), 1857–1860.10.21273/HORTSCI.44.7.1857]Search in Google Scholar
[Samuolienė, G., Brazaitytė, A., Sirtautas, R., Novičkovas, A., Duchovskis, P. (2011). Supplementary red-LED lighting affects phytochemicals and nitrate of baby leaf lettuce. J. Food Agricult. Environ., 9 (3–4), 271–274.]Search in Google Scholar
[Samuolienė, G., Brazaitytė, A., Duchovskis, P., Viršilė, A., Jankauskienė, J., Sirtautas, R, Samuolienė, G., Sirtautas, R., Brazaitytė, A., Viršilė, A., Duchovskis, P. (2012a). Supplementary red-LED lighting and the changes in phytochemical content of two baby leaf lettuce varieties during three seasons. J. Food Agricult. Environ., 10 (10), 701–706.]Search in Google Scholar
[Samuolienė, G., Sirtautas, R., Brazaitytė, A., Duchovskis, P. (2012b). LED lighting and seasonality effects antioxidant properties of baby leaf lettuce. Food Chem., 134 (3), 1494–1499.10.1016/j.foodchem.2012.03.06125005972]Search in Google Scholar
[Samuolienė, G., Brazaitytė, A., Duchovskis, P., Viršilė, A., Jankauskienė, J., Sirtautas, R., Novičkovas, A., Sakalauskienė, S., Sakalauskaitė, J. (2012c). Cultivation of vegetable transplants using solid-state lamps for the short-wavelength supplementary lighting in greenhouses. Acta Horticult., 952, 885–892.10.17660/ActaHortic.2012.952.112]Search in Google Scholar
[Samuolienė, G., Brazaitytė, A., Sirtautas, R., Novičkovas, A., Duchovskis, P. (2012d). The effect of supplementary LED lighting on the antioxidant and nutritional properties of lettuce. Acta Horticult., 952, 835–841.10.17660/ActaHortic.2012.952.106]Search in Google Scholar
[Sergejeva, D., Alsina, I., Duma, M., Dubova, L., Augspole, I., Erdberga, I. Berzina, K. (2018). Evaluation of different lighting sources on the growth and chemical composition of lettuce. Agron. Res., 16 (3), 892–899.]Search in Google Scholar
[Son, K. H., Oh, M. M. (2015). Growth, photosynthetic and antioxidant parameters of two lettuce cultivars as affected by red, green, and blue light-emitting diodes. Horticult. Environ. Biotechnol., 56 (5), 639–653.10.1007/s13580-015-1064-3]Search in Google Scholar
[Stapleton, A. E., 1992. Ultraviolet radiation and plants: Burning questions. The Plant Cell, 4 (11), 1353–1358.10.2307/3869507]Search in Google Scholar
[Stutte, G. W., Edney, S., Skerritt, T. (2009). Photoregulation of bioprotectant content of red leaf lettuce with light-emitting diodes. HortScience, 44 (1), 79–82.10.21273/HORTSCI.44.1.79]Search in Google Scholar
[Tarakanov, I., Yakovleva, O., Konovalova, I., Paliutina, G., Anisimov, A. (2012). Light-emitting diodes: On the way to combinatorial lighting technologies for basic research and crop production. Acta Horticult., 956, 171–178.10.17660/ActaHortic.2012.956.17]Search in Google Scholar
[Wojciechowska, R., Długosz-Grochowska, O., Kołton, A., Żupnik, M. (2015). Effects of LED supplemental lighting on yield and some quality parameters of lamb’s lettuce grown in two winter cycles. Scientia Horticult., 187, 80–86.10.1016/j.scienta.2015.03.006]Search in Google Scholar
[Xin, J., Liu, H., Song, S., Chen, R., Sun, G. (2015). Growth and quality of Chinese kale grown under different LEDs. Agricult. Sci. Technol., 16 (1), 68–115.]Search in Google Scholar