Table 4.

Effect of different colchicine concentration in vitro treatments on polyploidy induction in drumstick tree

Colchicine (mg/L)	No. of plants examined	% individuals by ploidy level
		Diploid	Chimeras	Tetraploid
0	10	100a	0c	0c
100	27	81.48 ± 7.62b	14.81 ± 6.97b	3.70 ± 3.70c
250	22	63.64 ± 10.50b	27.27 ± 9.72a	9.09 ± 6.27b
500	19	52.63 ± 11.77c	26.32 ± 10.38a	21.05 ± 9.61a
1,000	3	66.67 ± 33.33b	33.33 ± 33.33a	0c

Mean values followed by the same letter in the same column are not significantly different from each other at the P ≤ 0.05 level, according to Duncan’s multiple range test.