Treatment/Pathogen Plant height (cm)
Salicylic acid 46.8 a 53 a 44 a
Chitosan 42.2 ab 50 ab 42.4 a
Inoculated control 38.4 b 40.8 b 36.2 c
Uninoculated control 44.4 ab 42.3 b 40.2 ab
* For each pathogentested, values (means) followed by the same letter are not significantly different according to Duncan's Multiple Range test at P ≤ 0.05.
Table 5: Effect of chitosan- and salicylic acid-based treatments on height of tomato cv. Rio Grande plants inoculated with Verticillium dahliae (VD), Fusarium oxysporum f. sp. lycopersici (FOL) and F. oxysporum f. sp. radicis-lycopersici (FORL) noted 60 days post-inoculation under growth chamber conditions. Chitosan (4 mg/ml) and SA (10 mM) were applied as soil drench five days before inoculation.