Effects of cytokinin on regulation of root system architecture (RSA).

<p>(A) 0.1 µM 6-BA treatment reduced the number of lateral root in primary root and induced root hair of NIP and <i>osarf16</i> mutant in primary root tips (The bar represents 5 mm). The graphs represent statistics data of lateral root number (B) and average root hairs length (C). Data are shown as the mean ± SD (n = 5). Significant (P<0.05) differences in number of lateral root in primary root and average length of root hairs in primary root tips between <i>osarf16</i> and NIP are indicated by an asterisk.