Response of irradiated chilli pepper shoots (Capsicum annuum. L.) propagated in vitro to drought stress tolerance
Pages : 258-260, DOI: https://doi.org/10.14741/ijmcr/v.7.3.2Download PDF
Drought stress in plants caused by water deficiency. In Vitro selection with mutation techniques offered stress tolerance in plants. Shoot tips of chilli pepper (Capsicum annuum . L.) exposed for gamma radiations at the doses (0, 10 and 20 Gy). Irradiated shoots were exposed to stress tolerance in the presence of Polyethylene Glycol (PEG 6000) in MS medium. Analysis of variance results for all characters studied were found to be significant, highest dose 20 Gy interaction with 40 g.l-1 of PEG gave highest number 6.2 shoot. explant-1 whereas 10 Gy and 40 g.l-1 of PEG gave highest plant height 6.04 cm. Further, higher accumulation of proline reached 26.97 mg. g-1 at interaction of 20 Gy+ 60 g.l-1 PEG while highest accumulation of CHO found at 20 Gy+ 40 g.l-1 PEG.
Keywords: In Vitro, PEG, Gamma, proline, chilli