Figure 10

ISR bioassay for six active compounds. The soybean seeds treated with cyclic(Pro-Tyr), cyclic(Val-Pro), cyclic(Leu-Pro), uracil, phenylalanine, and tryptophan and a 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.