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

Abstract

Two improved cultivars of urdbean (Vigna mungo L. Hepper), namely, PDUI and T9 were treated with single and
combination doses/concentration ofgamma rays, ethyl methane sulphonate, (EMS) and sodium azide (SA). A number
of various types of morphological macromutations were induced in M2 generation. Out of these, 14 mutants from
PDU 1 and 13 from T9 were identified as true breeding for plant morphology, pod and seed characters and early
maturity in M} generation. Many macromutants showed significant improvement in yield and other yield components
as compared to their parents.