Figure 6.

Partial least square-discriminant analysis (PLS-DA) (a) scores plot and (b) Shared and Unique Structures (SUS) plot adapted from Abreu et al. [37]. The SUS-plot clusters the loadings according to their importance [p(corr)] for the discrimination of the NMR data with the harvest week (Y axis) and with the light condition (X axis, control, and shaded conditions on the right and left sides, respectively), showing that fructose and glucose increased in control tomatoes, while sucrose, cinnamic acids, rutin, fatty acids, most amino acids, and organic acids (malate and citrate) increased in shaded tomatoes.