Figure 4

ISR bioassay for various nBuOH extract components. The soybean seeds treated with 12 fractions (S1−S12) extracted from nBuOH and the control (2%DMSO) at 12 dpi inoculation. (A) Percentage of various stage nematodes. The ratio of different developmental stages of SCN to the total number of nematodes within soybean roots. (B) Number of nematodes per plant. The different lowercase letters on the bars represent significant differences (P < 0.05) between treatments. The data are means ± SE. n = 3.