Table 5. Effect of NAA on root induction and growth of adventitious shoots.

No.	NAA (mg/l)	Rooting rate (%)	The number of roots	Growth status of roots
TCR1	0	67.22±7.52b	10.33±0.58ab	Thin roots without callus at the base
TCR2	0.1	93.33±11.55a	12.33±2.08a	Strong roots with few callus at the base
TCR3	0.2	80.56±17.35ab	8.33±0.58b	Strong roots with a lot of calli at the base
TCR4	0.3	85.00±13.23ab	8.67±1.53b	Short roots with many calli at the base

Values are mean±standard error in triplicate, each with 30 explants. The different letters behind data mean significantly different from each other at p≤0.05 level, according to Duncan’s multiple range test.