Efficiency of gamma irradiation and ethyl methane sulphonate in inducing variations in Jasminum auriculatum Vahl.

Vegetatively propagated crops like Jasminum auriculatum have a constraint in genetic variation due to narrow base that restricts the insights any crop breeding programme. Mutation is potential tool directs way create desirable effectively vegetatively crops. The optimum dose of mutagen one which produces maximum frequency mutation turn variation, with minimum killing. aim present paper unveils Lethal Dose (LD50) and growth reduction (GR50) for both Gamma irradiation (GI) Ethyl methane sulphonate (EMS) ecotype ‘Muthu Mullai’ auriculatum. These parameters GR EMS treated cuttings were analysed by considering GR50 values mortality rate (57%, 48%), survival percentage (12.479Gy, 13.268mM), shoot length (18.59Gy, 18.28mM), root (20.39Gy, 18.17mM), number leaves (22.29Gy, 17.47mM), sprouts (22.97Gy, 16.17mM), vigour index (10.43Gy, 11.05mM), leaf (21.61Gy, 19.90mM) width (19.2Gy, 16.17mM). LD50 value was 12.479 Gy GI 13.268 mM treatment. different ranged from 14.93 22.9 1.05 19.9 mutagenic efficiency effectiveness 214.96 89.36 48.66 33.77 treatment, respectively. doses can be used generating considerable put use future improvement programmes Jasmine.