Morphological variation in mungbean (Vigna radiata (L.) Wilczek) induced through gamma irradiation

Being self pollinated nature of Mungbean, available genetic variation is very limited for crop improvement. Hence, genetic variation was created in three mungbean varieties viz., CO5, CO(Gg)7 and VBN(Gg)3 through 550 Gray and 600 Gray dose of gamma irradiation. Five types of chlorophyll deficient mutants viz., albino, xantha, chlorina, viridis and variegated leaves were observed in M₂ generation. A wide range of morphologically distinct mungbean mutants with regards to leaf, stem, flower, pod, seed and growth habit were isolated and the heritability of these modification was confirmed in further generation. Higher frequencies of both chlorophyll deficient and morphologically distinct mutants were observed in 550 Gray dose of gamma irradiation in mungbean.