Phenotypic characterization of mutants from different species of annual chrysanthemum

An experiment was conducted to study the phenotypic characterization of mutants from different species of annual chrysanthemum by treating the seeds of different species of Chrysanthemum coronarium (Cco), Chrysanthemum segetum (Cse) and Chrysanthemum carinatum (Cca) with various doses of gamma rays (Cobalt-60) at National Botanical Research Institute, Lucknow. Immediately after the mutagenic treatment, the nurseries were raised and further transplanted in the field. M1 population of all three species of Chrysanthemum treated with different doses of gamma rays were screened and characterized. The experimental materials selected for the present investigation consisted of 22 mutant (M2) lines of species Chrysanthemum coronarium (Cco), 5 mutant lines of species Chrysanthemum segetum (Cse) and 3 mutant lines of species Chrysanthemum carinatum (Cca).