Comparative Cytotoxic Activity of Wild Harvested Stems and In Vitro-Raised Protocorms of Dendrobium chryseum Rolfe in Human Cervical Carcinoma and Glioblastoma Cell Lines

Table 2

In vitro seed germination of Dendrobium chryseum.

S. no.	Strength of the MS medium	Plant growth regulators (mg/L) or additives	Observed in weeks
			Initiation of seed germination	Initiation of protocorm formation
1.	FMS	—	3	5
2.	1/2 MS	—	3	4
3.	1/4 MS	—	3	5
4.	FMS	0.5 BAP + 0.5 NAA	4	7
5.	FMS	1 BAP + 0.5 NAA	4	6
6.	FMS	1.5 BAP + 0.5 NAA	4	6
7.	FMS	2 BAP + 0.5 NAA	3	5
8.	FMS	10% CW	3	4
9.	FMS	5% CW	3	4

Culture condition: cultures were maintained under fluorescent light with 8 h dark and 16 h light at 25°C and six replicates were used for each combination.