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. 2021 Sep 15;102(2):472–487. doi: 10.1002/jsfa.11513

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© 2021 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Graphical summary of reviews outcomes showing the absolute frequencies of applied light spectra and percentage of those spectra with a significant positive effect on specialized metabolites (anthocyanins, carotenoids, phenols, tocopherols, glycosides and terpenes) (◯◯◯) in each crop category: microgreens, edible flowers, medicinal plants, and aromatic herbs. (UV = ultraviolet; R = red; B = blue; G = green; Y = yellow; O = orange; FR = far‐red; TOTAL OBSERVATIONS = number of treatments reporting a certain spectrum considering 410 observations).