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References juato responsible for the standardization of the laboratory protocols for the evaluation of the activities of POD, CAT and PPO enzymes. CEEG: student of the Ingenieria en Agronomia of Universidad de Guanajuato responsible of the cultivation and agronomic management of plants in the greenhouse. She also supervised the development of the plants at the stage where these were subjected to the light treatments. VMT: researcher of the Instituto Nacional de Investigaciones Forestales, Agrcolas y Pecuarias who provided the plant material, equipment, the advisory on the physiological determinations and plants cultivation for the experiments. GMD professor of the Universidad de Guanajuato responsible for the performance of the laboratory procedures for the evaluations of the antioxidant activity and the concentrations of phe nolic compounds and chlorophylls. 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Chemosphere 222:399-406 Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations, Acta Physiologie Plantarum (2020) 42:172 Page 5 of 6 172 22 b 20 20 18 18 16 15.00 I 16 15.00 13,40 g 13.1 c 14.40 1 13.20 14 14 12 12 10 10 2 2 4 6 2 4 6 22 22 d 19.99 19.5 ab 20 20 17.3 abc 18 18 15.4 bc 150 g 16 15.4 be I T 16 12 12 10 10 2 4 6 2 6 Fig. 1 Kinetic evaluation of the peroxidase activity as units of enzymatic activity. a Natural white light, b artificial white light, cred light, dyel. low light Days of evaluation (2, 4 and 6). Values with the same letter within averages rows are statically equal Tukey (p 0.05) modify the morphological and According to Son and Oh (2013), wavelengths of visible growth-related variables (supplementary material). Vari- light as blue and red stimulate an increase in the synthesis of ables were highly significant differences (p