**2.19 Mutants in M3**

220 Gamma Radiation

a. M2 Generation

b. M3 generation

c. (c) M3 Mutants

Fig. 1. Mutagenic effect on seed yield, biological yield and harvest index

Mean values for seed yield per plant**,** biological yield and harvest index were positively or negatively influenced in all mutants as compared to controls (Fig-1). Maximum seed and biological yield was recorded in tall, high yielding, late and long pod mutants over control. The highest seed yield (18.29g) and biological yield (52.40g) in high yielding mutant and harvest index (44.72%) in broad pod mutant was recorded. In present investigation the rate of dry matter production in horsegram mutants was significantly correlated with seed yield (Fig-1). Work of Sahane *et al*., (1995) in horsegram was inconformity with present study.
