[5] Johkan M, Shoj i K, Goto F, et al. Effect of green light wavelength and intensity on photomorphogenesis and photosynthesis in Lactuca sativa[J]. Environmental and Experimental Botany, 2012, 75(75): 128-133.

[6] Dougher T A O, Bugbee B. Evidence for yellow light suppression of lettuce growth[J]. Photochemistry and Photobiology, 2001, 73(2): 208-212.

[7] Li Qian, Kubota C. Effects of supplemental light quality on growth and phytochemicals of baby leaf lettuce[J]. Environmental and Experimental Botany, 2009, 67(1): 59-64.

[11] Liu Wen, Liu Luqing, Shao Huanhuan, et al. A lighting control system and method using multicolor LED in intelligent plant factory[P]. CN104302062 A, 2015-01-21 (in Chinese).