Figure 1.
Effects of plasma at 22.1 kV for different exposure duration on (a) 6-day-old soybean sprouts appearance, (b) average stem length, (c) average root length, and (d) average weight of soybean sprouts on days 2, 4, and 6. Error bars indicated standard error (n = 3). *p < 0.05 versus control; **p < 0.01 versus control, according to LSD test.