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Fig. 4 | Plant Methods

Fig. 4

From: Correction: Two-fold red excess (TREx): a simple and novel digital color index that enables non-invasive real-time monitoring of green-leaved as well as anthocyanin-rich crops

Fig. 4

Plots for anthocyanin/chlorophyll ratio (Anth/Chl) versus Green/Red ratio (G/R; a), Green-minus-Red index (GMR; b), and Augmented Green–Red Index (AGRI; c) for leafy vegetables with different levels of anthocyanin (indicated with different symbols). Coefficients of determination (R2) and equations have been presented for the best-fit curve of the combined dataset (n = 320). Dotted rectangles indicate the point of inflection (elbow) in the fitted curves

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Plant Methods

ISSN: 1746-4811