Legume Research - An International Journal

In the present investigation, viable macromutants with changes in stature, duration, leaf, pod and sterility were recorded in M₂ generation of cluster bean. A total of 54 and 39 macro-mutants were isolated from EMS and SA treatments, respectively. In the EMS treatments, the mutation spectrum was much wider (nine types of mutants identified) at 0.8% and narrow (four types of mutants identified) at 1.0% and in SA treatments the mutation spectrum was wider at 0.03% (ten types of mutants identified) and narrow at 0.01% (two types of mutants identified). In general, the mutation frequency was high on M₁ plant basis than M₂ plant basis for both the mutagens viz. EMS and SA. The frequency of viable mutation on M₁ and M₂ plant basis exhibited an inconsistent trend with increase in EMS and SA treatments.