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. 2021 Jun 17;12:678197. doi: 10.3389/fpls.2021.678197

FIGURE 5.

FIGURE 5

Effects of spectra on genes relative expression level of light-response and nitrogen metabolism in lettuce leaves. (A) Relative expression level of NR. (B) Relative expression level of NIR. (C) Relative expression level of GS. (D) Relative expression level of GOGAT. (E) Relative expression level of GDH. (F) Relative expression level of phyA. (G) Relative expression level of phyB. (H) Relative expression level of phyE. (I) Relative expression level of CRY1. (J) Relative expression level of HY5. RB, 75% red + 25% blue LED; RBG, 60% red + 20% blue + 20% green LED; RBP, 60% red + 20% blue + 20% purple LED; RBF, 60% red + 20% blue + 20% infrared LED. The letters represent the significant difference of different treatments (p < 0.05).