Vol. 11, Issue 6 (2022)

Author(s):
Amrutha R, Dr. Srikantaprasad D, Dr. Pushpa TN, Dr. Lakshmidevamma TN, Dr. Rudragoudapatil and Dr. Sandhyarani Nishani

Abstract:
The present investigation was conducted during rabi - 2020 at Kittur Rani Channamma College of Horticulture, Arabhavi, Belagavi district, Karnataka. Considering the requirement of locally adoptive superior type, cv. Kosi was subjected to irradiation using gamma rays. Nineteen advanced mutants of cv. Kosi along with two checks cv. Kosi and CIM Kranthi were selected from M₂ generation and assessed for growth parameter and their superiority over the checks during M₃ generation. Among all the mutants K₂₀P₃₃ recorded taller plant height at 45 and 60 DAP (19.00 and 32.53 cm respectively). The mutant K₂₀P₂₃ registered the maximum plant spread of about 31.88 cm and 33.57 cm at 45 and 60 DAP, respectively. More number of branches were recorded in mutant K₂₀P₃₃ at 45 DAP (8.20) and in K₂₀P₂₆ at 60 DAP (17.73). The research revealed that the gamma rays induced M₃ mutants showed the increased plant height, plant spread and number of branches during early growth period.