Vol. 11, Issue 12 (2022)

Author(s):
Chandana Shivaswamy, Sudha Patil, Mallika Sindha and KS Solanki

Abstract:
In present investigation, seedlings of China aster var. Arka Kamini were treated with different doses (0.05%, 0.10%, 0.15%, 0.20% and 0.25%) of chemical mutagens i.e., Diethyl sulphonate and Ethyl methyl sulphonate. Different vegetative, floral and yield characters were taken under study and analyzed in RBD comprising 11 treatments and 3 replications. Significantly maximum flowering duration, flower diameter, shelf life, vase life, number of flowers/plant, flower yield and early first flower bud initiation was observed in T₉ (0.20% EMS). However, maximum survival percentage of plants (94.17) and plant height (32.25 cm) was observed in 0.15% EMS and 0.15% DES respectively. The maximum number of primary branches/plant (4.38) and stalk length (22.31 cm) was recorded in control. 0.25% EMS recorded maximum plant spread in E–W direction (24.65 cm) while, undesirable results were obtained in 0.25% DES.