Figure 7. The amounts of volatile compounds (% of IS peak area + SEM, n = 3–5)emitted from healthy rice induced by BPH feed and rice infected by Xoo at 5 d,10 d and 15 d, meanwhile, have suffer from BPH feed for 24 h.

PI: plants infected by Xoo. (a) Terpenes. (b) Aldehyde, ketone and esters. Asterisks show significant differences among the treatments (*p < 0.05; **p < 0.01). Some materials didn’t appear in this figure, because they were too few to detect in these sample.