Abstract
For induction of mutations, seeds (1.5% moisture content) of Nigella sativa L. (black cummin) were treated with 4. 6, 8, 10, 20 and 30 KR of X-rays and 0.5%, 0.75% and 1.0% EMS for 2 and 4 hours. Seed germinability, survival rates, LD50, the M1 variants, the total mutation frequency including chlorophyll mutations, viable mutations and non-viable morphological mutations have been enumerated. Mutagenic efficiency and effectiveness were determined. Mode of inheritance of some of the mutant traits was also studied.
