Radiation mutagenesis combined with in vitro culture
has proved effective in the induction of novel genetic
variation, selection, and multiplication of mutant
clones aimed at crop improvement (Foster 2001; Biswas
et al. 2002; Zhu 2004). Assessment of the radiosensitivity
in terms of LD50 is the first step of in vitro
mutagenesis, with physical mutagens such as gamma radiation, to optimize the suitable dose for mutagenesis.
In the present study, the sugarcane embryogenic callus
cultures were exposed to different doses of gamma
irradiation, and post irradiation survival response was
evaluated in terms of WPCs