| 
      Whereas growth +++ (good), ++ (moderate), + (poor) and − (no growth)
        | Isolate No. | Control | Roundup herbicide |  |  |  
        |  |  | 25mg/ml | 50mg/ml | 100mg/ml |  
        | 1 | +++ | ++ | + | − |  
        | 2 | +++ | ++ | + | − |  
        | 3 | +++ | ++ | + | − |  
        | 4 | +++ | ++ | + | − |  
        | 5 | +++ | ++ | + | − |  
        | 6 | +++ | ++ | + | − |  
        | 7 | +++ | ++ | − | − |  
        | 8 | +++ | ++ | + | − |  
        | 9 | +++ | ++ | + | − |  
        | 10 | +++ | ++ | + | − |  
        | 11 | +++ | ++ | + | − |  
        | 12 | +++ | ++ | + | − |  
        | 13 | +++ | ++ | + | − |  |