59 



Table 2-2. Effects of gibberellic acid (100 mg/1 ) on the translocation 

 of 14 C-labeled 2,4-D in waterhyacinths; (data expressed as 

 mean percent of total 14 C translocated). 



Day 1 Day 3 Day 6 Day 5 



(Trial 1) (Trial 1) (Trial 1) (Trial 2) 



Treated Petiole 











(minus lamina) 











With GA 



60.74 



51.21 



43.11 



44.06 



Without GA 



60.64 



52.64 



33.50 



36.83 



Other Leaves 











With GA 



11.27 



15.39 



24.29 



17.25 



Without GA 



8.05** 



13.16 



17.42* 



21.49 



Meristem and Youngest Leaf 











With GA 



19.47 



15.37 



10.59 



6.57 



Without GA 



19.29 



18.00 



18.15* 



6.08 



Daughter Plants 











With GA 



3.73 



11.91 



12.29 



19.70 



Without GA 



5.70 



11.13 



19.07 



29.43 



Roots 











With GA 



4.77 



6.16 



9.71 



12.42 



Without GA 



6.33 



5.06 



11.85 



8.16 



** Significant at a=0.01 

 * Significant at a=0.05 



