Effect of sonication intensity and time on the survival rate of hypocotyls after 10 days in MSCP1 medium. Survival rate of explants was evaluated at 10 days after co-cultivation. Only the green explants were taken into account, and the withered were thought as non-survival. Survival rate = number of green explants/number of total explants × 100.
Wang et al. BMC Biotechnology 2012 12:34 doi:10.1186/1472-6750-12-34