Fig. 3From: Hormonal and metabolites responses in Fusarium wilt-susceptible and -resistant watermelon plants during plant-pathogen interactionsMelatonin content in the leaf tissue of FON 0 pre- and post-inoculated plants of watermelon varieties PI-296341 (PI), Sugar Baby (SB), Calhoun Grey (CA) and Charleston Grey (CH). Not detected level is indicated as hash-underscore (#). The significant differences (P < 0.05) among watermelon varieties are shown by different letters, based on a post hoc Tukey’s testBack to article page