Induction of salt tolerance in two cultivars of sorghum (Sorghum bicolor L.) by exogenous application of proline at seedling stage.

Abstract

Abstract: This study was carried out to study the possibility of salt tolerance induction in two cultivars of sorghum by exogenous application of different levels (0, 50 mM and 100 mM) of proline. Salt treatments (100 mM) adversely affected the germination percentage, growth and chlorophyll contents of both cultivars. However, applications of proline alleviated the adverse effects of salt stress. However, high concentration of proline (100 mM) was not as much effective as compared to low concentration i.e. 50 mM in both cultivars.