Treatment tested Duration of bacterial culture incubation (days) 1 2 3 4 7 Control 3.42 a 4.03 a 3.62 a 3.7 a 3.87 a FS42 3.18 a (2) 3.58 a (11.2) 2.8 b (22.6) 2.55 b (31.1) 3.28 ab (15.2) FSV39 3.35 a (2) 3.52 a (12.6) 2.22 b (38.7) 1.93 c (47.8) 2.38 b (38.5) FSV41 3.13 a (8.5) 3.38 a (16.1) 2.37 b (34.5) 2.03 c (45.1) 2.48 b (35.9) FSV44 3.18 a (7) 3.47 a (13.9) 2.53 b (30.1) 1.88 c (49.2) 3.03 b (21.7) FSV65 3.18 a (7) 2.5 b (37.9) 1.97 b (45.6) 1.50 c (59.5) 2.33 b (39.8) FSV104 3.08 a (9.9) 3.48 a (13.6) 2.02 b (44.2) 2.02 c (45.4) 2.47 b (36.2)

Table 5: Effect of cell-free cultures from endophytic Bacillus spp., prepared at different durations of incubation, against Fusarium oxysporum f. sp. lycopersici mycelial growth noted after 4 days of incubation at 25°C as compared to the untreated controls. FS42, FSV39, FSV41, FSV44, FSV65 and FSV104: Cellfree culture filtrates of isolates S42 of B. cereus, SV39 of B. tequilensis, SV41 of B. subtilis, SV44 of B. methylotrophicus, SV65 of B. amyloliquefaciens subsp. plantarum and SV104 of B. mojavensis, respectively. Control: Luria-Bertani broth medium filtrate. For each incubation duration, values followed by the same letter are not significantly different according to Student Newman Keuls test at P ≤ 0.05. Numbers in parenthesis indicate the percentage (in %) of the mycelial growth inhibition of Fusarium oxysporum f. sp. lycopersici as compared to the untreated control.