Isolation and characterization of useful mutants induced by gamma irradiation in 'Kranti' indian mustard (Brassica juncea)

Abstract

Genetic variability was induced, in the 'Kranti' Indian mustard [Brassica/juncea (L.) Czemj. & Cosson]. utilizing
30,40 and 50 kr doses of gamma-ray Irradiation. 'In M 3 generation, compared wuh the econtrol, substantial decrease was
observed in the mean value of various quantitative charactcers in the mutagen-treated populations. More variution was
induced at 30 kr compared with that at 40 or 50 kr dose. Four mutants were identified ar 30 kr dose, which besides
being early in maturity, gave better yield also-compared with the control. The better seed yield of the transmutated
plants was due either to intcrease in seed weight or to increse in number of siliquae/plant.