Calcium chloride priming reverses the effect of salinity stress on α-amylase activity during seed germination in Vigna radiata

Abstract

Farmland salinization is a global issue that is causing significant agricultural losses. Seeds of Vigna radiata were treated 200 mM NaCl, CaCl2 + 200 mM NaCl and control (distilled water). 200 mM NaCl treatment had a considerable negative impact on seed germination and seeds were unable to germinate. Reduction in seed germination was correlated with low α-amylase activity after 96 h of incubation as compared to control seeds. Seed priming with CaCl2 increased seed germination upto 84% after 96 h of incubation under salinity stress. CaCl2 treatment increasesα-amylase activity by 45% as compared to control at 96 h of incubation under salinity stress at 200 mM of NaCl. CaCl2 treatment rescue seed germination in Vigna radiata under salinity stress by increasing α-amylase activity.