Vol. 12, Issue 5 (2023)

Author(s):
Karen Esther, Dr. Srikantaprasad D, Dr. JS Hiremath, Dr. Pushpa TN, Dr. Mahantesha Naika BN and Dr. Vijay Mahantesh

Abstract:
Menthol mint (Mentha arvensis L.) is one of the most important aromatic plants producing essential oil. An experiment was carried out using Factorial Completely Randomized Design with 3 Replication along with ten advanced mutants’ lines and two checks to study the effect of salinity on growth parameters of menthol mint at the department of Plantation, Spices, Medicinal and Aromatic crops, Kittur Rani Channamma College of Horticulture, Arabhavi during 2022 under open field condition. 4 levels of salinity solution containing 0, 50, 100 and 150 mmol NaCl was applied in irrigation. The results showed that salinity stress significantly affected plant height, branches, spread, internodal length, and area of recently matured leaf as salt level increased. Among the advanced mutant lines CK20P113 recorded maximum plant height (42.23 cm) and more number of branches (5.76) with uniform plant spread (31.44 cm) indicating taller internodal length (5.30 cm) and area of recently matured leaf (22.04 cm) at harvest. The highest values of growth parameters were observed under non-salinity condition (control). Also, K20P26 and CK20P79 showed better performance under salinity conditions appearing to be the most promising mutant lines in menthol mint.