1.00 



0.75 



> 



o 



< 



> 



< 



q: 



0.50 



0.25 



Mr. 2. The relative distribution of radioactivity in 10 nnn. bean stem sections as 

 a function of duration of exposure to l-C"-2,4-D. Curve 1, 1-hr. exposure. Curve 

 •2. 2 hrs. Curve 3, 4 hrs. Curve 4, 8 hrs. Curve 5, 24 hrs. Cnr\c 6, 72 Ins. 



[280] 



