Table 1. Polyploidization rate of nodal segments of N. cadamba using different colchicine concentrations and treatment durations.

Colchicine (%, w/v)	Treatment duration (h)	Number of explants	Number of surviving explants	Number of tetraploids (%)	Number of mixoploids (%)	Number of octoploids (%)
0.0	24	30	27 (90.0)	27 (90.0)	0 (0.0)	0 (0.0)
	48	30	20 (66.7)	20 (66.7)	0 (0.0)	0 (0.0)
0.1	24	30	18 (60.0)	16 (53.3)	2 (6.7)	0 (0.0)
	48	30	16 (53.3)	11 (36.7)	2 (6.7)	3 (10.0)
0.3	24	30	14 (46.7)	6 (20.0)	6 (20.0)	2 (6.7)
	48	30	12 (40.0)	4 (13.3)	2 (6.7)	6 (20.0)
0.5	24	30	8 (26.7)	2 (6.7)	1 (3.3)	5 (16.7)
	48	30	7 (23.3)	0 (0.0)	1 (3.3)	6 (20.0)

Notes.

Values in parentheses represent the percentage of corresponding figures.