Induction and Analysis of the Alkaloid Mitragynine Content of a Mitragyna speciosa Suspension Culture System upon Elicitation and Precursor Feeding

Table 2

Effects of the combination 2,4-D and kinetin at different concentrations on the percentage of callus induction from petiole explants.

Treatments	Percentage of explants that produced callus (%)
	2,4-D (mgL^−1)
	0	2	4	6
Kinetin (mgL^−1)
0	12.5^d	37.68^b	72.22^a	27.77^bc
1	26.387^bc	4.167^d	12.5^d	25^c
3	4.167^d	31.92^bc	36.11^bc	36.11^bc

Percentages within a column that have the same letter are not statistically significantly different according to Duncan’s multiple range test at 𝑃≤0.05.