Fig. 2

Culm functional traits depending on day length and wind speed (n = 6, mean ± 1SE). (a) Internode number, (b) culm density, (c) culm diameter, (d) internode length, (e) mean culm height, (f) maximum culm height; SD, short day with wind speed 0 m/s; SDW, short day with wind speed 4 m/s; LD, long day with wind speed 0 m/s; LDW, long day with wind speed 4 m/s. Different alphabets indicate statistically different subgroups by Duncan’s post hoc test (p < .05). In the cases of (a) internode number and (b) culm density, different sub-groups were statistically divided by Duncan’s post hoc test with a different significance level, p < 0.1