Figure 2.

Germination percentage of maize seeds treated with plant-derived smoke. Maize seeds were soaked without or with 1000 ppm, 2000 ppm, and 4000 ppm plant-derived smoke for 6 h (A,B). The images in (A) correspond to data bars in (B). (A) The above row shows seeds, just after presoaking, while below row shows seeds, 2 days after presoaking. (B) Germination percentage was recorded after 2 days. The data are presented as the mean ± S.D. from 4 independent biological replicates. Different letters indicate that the change is significant as determined by one-way ANOVA followed by Tukey’s multiple comparison (p ˂ 0.05).