Fig. 1. Effects of exgenous SA on the disease incidence and lesion size of citrus fruit caused by P. digitatum.

a Changes of disease incidence. b Changes of lesion size. These two indicators were measured 74, 88, 98, 111, 121, and 132h post inoculation. Data represent the mean±s.e.m. of three biological replicates (n=3). c Appearance of the control and 2mM SA-treated citrus fruit at the late stage of disease