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[en] Mutation induction experiments with pea and lentil use ethyl-methane sulphonate (EMS) and N-nitrosoethyl urea (NEH). It was observed that extended washing after the mutagen treatment improves germination, fertility and survival, but decreases mutation rate. From previous mutation induction experiments, 5 promising mutants of lentil are under field evaluation. In cowpea, three mutant strains, developed from an induced mutator system, were already successfully tested under All-India Co-ordinated Trials. Several chickpea mutant lines have shown yields superior to the check variety. (author)

[en] A small group of fasciated pea mutants causes an extraordinarily high heterosis effect when used in crosses with non-fasciated genotypes. This becomes discernible in both the vegetative characters and the seed production of the hybrids, which surpasses the capacity of the better parental strain by 100-250% in some combinations. Some of the fasciated recombinants, arising from the mutants, cause heterosis, others not obviously depending on the second partner of the hybridization. (author)

[en] Only two of 46 soybean varieties in India owe their development to mutations. Although mutations have been induced and isolated for several attributes, the impact of mutation breeding in soybean improvement has yet to be realized. An intensive mutation breeding programme using physical and chemical mutagens was initiated in soybean, followed by recurrent selection and evaluation. Promising mutants of practical utility are described, including a yellow seeded mutant ('NRC-1'), of the indigenous black seeded 'Bhat' variety, and 'NRC-2', a high seed germinability mutant of the 'Bragg' variety. Over the years, the 'NRC-2' mutant, in particular, has performed exceedingly well in multilocational trials in the northern hill zone of India. (author). 14 refs, 1 tab