Figure 3.

Effects of ACh on the dry and fresh weights of roots of radish seedlings. The seedlings were cultured in the presence and absence of acetylcholine (1 nM) for 5 d at 25°C in the dark. Dry and fresh weights of the roots (main root + lateral roots) per seedling are shown. Vertical bars represent the means ± SD (n = 15). The asterisk indicates a significant difference between in the absence and presence of ACh at **p < 0.01 and *p < 0.05 by the t-test (n = 15).