58 



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

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

 mean dpm/mg dry weight). 





Day 1 

 (Trial 1) 



Day 3 

 (Trial 1) 



Day 6 

 (Trial 1) 



Day 6 

 (Trial 2) 



Treated Petiole 

 (minus lamina) 

 With GA 

 Without GA 



94.58 

 88.50 



131.41 

 121.45 



71.19 

 146.80 



94.92 



100.16 



Other Leaves 

 With GA 

 Without GA 



2.51 

 1.86 



5.89 

 3.86 



6.00 

 9.93 



5.08 

 7.42 



Men' stem and Youngest Leaf 

 With GA 

 Without GA 



15.05 

 12.50 



19.34 

 27.68 



14.39 

 35.87 



14.96 

 15.35 



Daughter Plants 

 With GA 

 Without GA 



15.50 



17.74 



17.29 

 21.66 



9.74 

 32.71 



15.50 

 55.51 



Roots 

 With GA 

 Without GA 



1.85 

 2.03 



4.24 

 3.25 



5.06 

 10.44* 



3.94 

 3.71 



Total Translocated 

 With GA 

 Without GA 



13.59 

 12.60 



18.23 

 15.08 



14.71 

 20.77 



14.45 

 18.52 



** Significant at a=0.01 

 * Significant at a=0.05 



