| S.No | Treatment | Germination inhibition(%) | 
      
        | 100 | 250 | 500 | 750 | 1000 | 
      
        | 1 | Control | 0.0 |  |  |  |  | 
      
        | 2 | Free silver
          nanoparticles(AgNps) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 
      
        | 3 | Chitosan coated silver
          nanoparticles (CS-AgNps) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 
      
        | 4 | Free copper silver
          nanoparticles (CuNps) | 10.0 | 25.0 | 65.0 | 75.0 | 90.0 | 
      
        | 5 | Chitosan coated copper
          nanoparticles (CS-CuNps) | 20.0 | 45.0 | 70.0 | 80.0 | 98.0 |