Effects of Bacillus megaterium inoculation on WT and Flacca plant biomass. Shoot dry weigh (A), root dry weight (B), total dry weight (C) and height (D) in wild-type cv Ailsa Craig (WT) and flacca (F) mutant tomato plants. Treatments are designed as non-inoculated controls (NI, open bars) or inoculated plants (I, black bars). Data are means ± SE (n = 6). Means followed by different letters are significantly different (P < 0.05) according to LSD’s HSD test. P values for two-way ANOVA are reported in Table 2.