Title : Effect of Liquid Formulation of Azotobacter vinelandii On germination of Vigna radiate
The purpose of the present research were to study the population dynamics of Azotobacter vinelandii at periodic interval and its effect on growth indices and nitrogen intake by Vigna radiate (Mung Beans) crop. In all there were three treatments including seed treatment with liquid A.vinelandii 1, A.vinelandii 2, A.vinelandii 3 @ 50 ml/kg of each. Result revealed that the application of liquid formulation of Azotobacter vinelandii shown significantly increased crop growth and improved soil biochemical properties over control. The higher seed germination per cent (87.26) recorded in seed treated with liquid A.vinelandii 3 while the lower seed germination per cent (83.97) was recorded in seed treated with liquid A.vinelandii 1. The seed treated with liquid Azotobacter vinelandii recorded significant increase in respect of Length of Leaves, Speed of Emergence (SE) and seedling vigor Index (SVI) . More SE and SVI was observed by A.vinelandii 3 (SE= 86.79% and SVI= 83.53) while lowest SE and SVI was recorded by A.vinelandii 1 (SE= 81.43% and SVI= 80.82). Considering all these parameters, it could be concluded that Azotobacter vinelandii have improved soil biochemical properties which may ultimately influence the growth of Vigna radiate (Mung Beans) crop.