Figure 2. Effect of the root exudates collected from own-root bottle gourd, grafted-root watermelon and own-root watermelon on FON conidial germination.

Each treatment had three replications. Bars represent standard error for three replicates. Germination impact index = (The conidial germination number in treatment – Control)/Control. The different letters represent the significance between pairs of mean values at P≤0.05 according to LSD test.