Vol. 12, Issue 3 (2023)

Author(s):
Sheeba Belwal, Ranjan Srivastava, NK Singh, BD Bhuj, Ajit Kumar, Satish Chand and Kanchan Karki

Abstract:
An experiment was carried out to induce mutations, work out effective dose of physical and chemical mutagens and to isolate the desirable mutants and were screened in two consecutive growing seasons i.e. 2021-2022 and 2022-2023. The standard size corms of gladiolus var. Prince of Orange were treated with different doses of Co- 60 gamma irradiation source (4.0 to 5.5 Kr) and Ethyl methane sulfonate (EMS) (0.2 to 0.6% for 6 hours). Observations were recorded for vegetative and floral characters in each treatment to assess the effect of different mutagenic treatments. Four potential mutants characterizing variations based in floret colour (4.5 Kr and 5.5 Kr), plant height (4.0 Kr, 4.5Kr, 5.5Kr, 0.6%) and number of florets (0.6%) have been screened due to their desirable qualities.