Propagation and J_III production of eight inbred lines of <i>Bursaphelenchus xylophilus</i> derived from the T4 isolate after 10, 20, and 30 days of incubation.

<p>A: total number of nematodes; B: number of J_III; C: J_III proportion; D: correlation between number of total nematodes and J_III proportion. The same letters indicate non-significant differences between the samples at the same time point (A–C). Bars and error bars represent averages and standard errors for ten replicates, respectively (A–C).