Author(s):

Shivani Lalotra, A Hemantaranjan and Rupanshee Srivastava

Abstract: A pot-culture experiment was undertaken to investigate the possible role of putative phytohormone Methyl jasmonate (MeJA) (10μM and 15μM) through seed hardening and Zinc (15mg/Kg soil) as basal dose in extenuating the salinity effects in chickpea genotype BG-362 on the earlier vegetative growth stage subjected to 100mM salinity stress. The results on evaluation of the effects of methyl jasmonate (MeJA) and Zinc on physio-biochemical attributes, antioxidant enzyme activity were observed significant. The application of both MeJA and Zn was found to improve the chlorophyll content, length of shoot, shoot dry weight, relative water content and antioxidant enzyme activity like catalase and minimizes the accumulation of Hydrogen Peroxide (H₂O₂) in salt-fed seedlings. However, all these parameters were significantly reduced under alone treatment of 100mM salinity. Observations on different parameters were recorded at four intervals of 30, 60, 90 and 120 days after salt exposure. From the above parameters we summarize our results that MeJA and Zn showed mitigating effects by ROS scavenging through antioxidant defense machinery, increase in measure of plant water solution i.e., relative water content, chlorophyll content and growth parameters under salinity stress.

Pages: 527-532  |  802 Views  326 Downloads

Download (687KB)