Figure 1.
Responses of silicon (Si)-treated (+Si) and non-Si-treated (−Si) tomato plants to R. solanacearum infection. (A) Disease symptoms. (B) Disease index. (C) Bacterial population. FW: fresh weight. (D) Si content. DW: dry weight. Data presented are means ± standard error (SE) of three replicates. Asterisks denote a significant difference between treatments at the same time-point (Student’s t-test, p < 0.05).