Alleviating the
Detrimental Effects of Salinity Stress by Application of Potassium: Growth, Yield
and Photosynthetic Parameters of Mung bean (Vigna radiata) (L.) Wilczek
Ibrahimi Arifa, Kumar Yogesh and Jakhar Somveer
Res. J. Chem. Environ.; Vol. 29(2); 37-44;
doi: https://doi.org/10.25303/292rjce037044; (2025)
Abstract
Among all the abiotic factors, salinity stress is one of the most harmful and it
severely limits crop productivity. Potassium is considered as one of the exogenous
protectants which may alleviate the harmful effects of salinity stress. To attain
the stated goals, pot experiments were conducted with primary aims to estimate the
negative impact of salinity stress in mung bean and to mitigate the effects of salinity
stress using potassium. The response to the combination of salinity stress in mung
bean (Vigna radiata L.) grown under net house conditions with three levels of application
of potassium (0.24g, 0.40g and 0.48g) was studied.
Salinity stress decreased various growth parameters (plant height, shoot and root
length, fresh and dry weight of root and shoot and leaf area), yield parameters
(no. of pods/plant, no. of seeds/pod, weight of seeds and pods) and photosynthetic
parameters (Chlorophyll content and carotenoid content). Potassium application alleviates
the detrimental effects of salinity even in highest level of NaCl (100mM). Therefore,
mung bean (Vigna radiata MH-1142) can be grown successfully at salt stress with
application of 0.48 g of KNO3.
