Vol. 11, Issue 5 (2022)

Author(s):
Basant Kumar Dadrwal, DL Bagdi, BL Kakralya and MK Sharma

Abstract:
A pot experiment was conducted during rabi season, 2018 in the cage house at Department of Plant Physiology, S.K.N. College of Agriculture, Jobner, Rajasthan to study the effect of ascobin in alleviating the adverse effects of salinity on physiological and biochemical parameters of wheat. Wheat cultivars namely Raj-4037and Raj-3077 were grown in ceramic pots under salinity conditions (0, 4 and 8 dSm^-1). Different concentrations of ascobin (0, 500, 750 and 1000 ppm) were sprayed at 45 and 65 days after sowing. Control plants were provided normal water. Different growth and physio-biochemical observations were recorded at 55 and 75 days after sowing in pot conditions. Result revealed a significant decrease were recorded in chlorophyll, protein, relative water content, cell membrane stability whereas, proline content and reducing sugar increased with salt stress up to EC 8 dSm^-1 in both the cultivars at 55 and 75 DAS. The foliar spray treatment with ascobin up to 1000 ppm significantly increased physio-biochemical. The 1000 ppm concentration of ascobin was found most effective in increasing the parameters studied. Reduction in physiological-biochemical parameters on account of salt stress was more in cultivar Raj-4037. On the basis of the above findings genotype Raj-3077 observed most salt tolerant and the tolerance was mediated by physiological-biochemical.