Fig. 6
Heat map of linear correlation coefficients matrix between light quality metrics and plant traits. FR: far red; R: red; G: green; B: blue; UV-A: ultraviolet-A. PFR, PR, PG, PB, PUV-A: the percentage of FR, R, G, B, and UV-A in total PPFD (photosynthetic photon flux density). Palisade: the length of palisade parenchyma cells; Spongy: the length of spongy layer; Chl: chlorophyll; Pn: net photosynthetic rate; Gs: stomatal conductance; Ci: intercellular CO2 concentration; E: transpiration rate. The percentage of each light and the ratio between two lights were normalized with arcsine transformation. The normality of other data used for this correlation analysis was verified