68 

 Tables 2-3 to 2-10 contain the actual alpha levels at which the dif- 

 ference in the treatment means of plant parts harvested on the same day 

 may be considered significant; however, in the discussion which follows, 

 alpha levels greater than 0.05 are not considered to be "statistically 

 significant" (Sokal and Rohlf, 1969). 



For ease of discussion, results are discussed in terms of treat- 

 ment means of individual plant parts through the three harvest 

 periods. 



The petioles of treated leaves consistently contained the highest 



14 

 C-labeled 2,4-D activity on both a dpm/mg and percentage of 



total translocated radioactivity, as would be expected due to the close 



proximity and connection to treated lamina. No clear pattern of 



distribution due to pretreatment with GA^ was evident on either 



dpm/mg or percentage basis. Results obtained for day 6 (trial 1) 



highlight the lack of correlation of GA-, treatment with levels of 



14 

 C-labeled 2,4-D translocation. On day 6, trial 1, plants which did 



not receive GA 3 pretreatment contained over twice as much radioactivity 



as plants receiving GA^; however, on a percentage basis GA-, pretreatment 



14 

 plants contained more C activity. Due to the variability of the data 



these differences are not considered significant but are noted merely to 



demonstrate the lack of consistency in the results. 



14 

 Mean dpm/mg and mean percentage of translocated C in the 



meristems and youngest leaves did not reflect any significant 



differences due to GAo treatment in plants harvested on days 1 and 3. 



However, on day 6, trial 1, meristems of plants which did not receive 



GAo pretreatment had a significantly higher percentage (18.15) 



