Collection seeds
The local (Tamil Nadu, India) scented rice (Oryza sativa L.) was selected for this study. Certified seeds were
collected from local market Thanjavur, Tamil Nadu, India.
Callus induction
Collected seeds were surface sterilized with 70 % (v/v) ethanol for 1 min and 0.1% (w/v) mercuric chloride for 10
min and then washed several times with sterile distilled water (Ramesh and Gupta, 2005). The seeds were induced
on Petri dishes (10 cm) containing MS (Murashige and Skooge, 1962) media containing basal salts, 3% sucrose (30
g L-1) as a source of carbon, 0.6% (6 g L-1) agar, different concentration of 2,4-D (2,4- Dichlorophenoxy acetic
acid) and the NAA:BAP. The combination of these hormones produced the shoots and roots. The pH of the media
was adjusted to 5.8 with 1N NaOH and 1N HCl using electronic pH indicator. The media was autoclaved at a
temperature of 121°C and pressure of 15 Ibs psi for 20 min. The medium filled plates were kept in laminar airflow
cabinet and were subjected to UV light for 20 min.