Vetiver  | 
        Initial  | 
        1st  | 
        2nd  | 
       
      
        Control  | 
        30.03 ±    0.73  | 
        28.05 ±    1.57  | 
        26.71 ±    1.33  | 
       
      
        IAA  | 
        34.07 ±    1.54  | 
        32.64 ±    0.73  | 
        31.03 ±    0.43  | 
       
      
        GA3  | 
        34.15 ±    0.47  | 
        29.74 ±    1.47  | 
        27.62 ±    0.48  | 
       
      
        Sunflower  | 
        Initial  | 
        1st  | 
        2nd  | 
       
      
        Control  | 
        31.39 ±    3.2  | 
        24.85 ±    0.26  | 
        24.90 ±    0.37  | 
       
      
        IAA  | 
        32.50 ±    2.29  | 
        29.20 ±    0.51  | 
        27.59 ±    0.56  | 
       
      
        GA3  | 
        30.09 ±    0.43  | 
        29.55 ±    0.82  | 
        28.25 ±    1.26  | 
       
      |