Vol. 12, Issue 10 (2023)

Author(s):
Shikha and Dr. Jujhar Singh

Abstract:
The present research "Effect of chemical mutagens on growth and flowering of Chrysanthemum (Dendranthema grandiflora L.) cv. Pusa shwet” was carried out at Experimental Farm, Department of Agriculture, Mata Gujri College, Fatehgarh sahib, Punjab during winter season of 2022-23. The experiment was laid out in randomized block design with seven treatments and the treatments were replicated thrice. There were seven treatments such as Ethyl methyl sulphonate (EMS 0.2% 0.3% 0.5%) and similarly colchicine (0.2%, 0.3%, 0.5%) plants were treated for 5 hours. Observation were recorded for vegetative and flowering parameters. Maximum vegetative (Plant height, leaf length, plant spread, number of branches, number of leaf, stem length) and flowering (day for first flowering, number of flower per branch, number of flower per plant, diameter of flower, weight of flower) parameter were recorded in T₁ i.e. control (when plants were treated with water). EMS and colchicine has negative impact on vegetative and flowering parameters as compare to control. Vegetative and flowering parameters found best in control (distilled water).