Characterization of Some Macromutations Induced by Single and Combination Treatments of Gamma Rays, EMS and SA in Urdbean (Vigna mungo L. Hepper)

Abstract

Two cultivars of urdbean (Vigna mungo L. Hepper), namely, PDU I and T9 were treated with single and combination
doses/concentrations of gamma rays, ethyl methane sulphonate (EMS) and sodium azide (SA). Number of various
types of morphological macromutations were induced in M2 generation. Of these, thirteen mutants from PDUI
and twelve from T9 were identified as true breeding for plant morphology, pod and seed characters and early maturity
in M3 generation. Many macromutants showed significant improvement in yield and other yield components as
compared to their parents.