A. W. GALSrON AND RAVhXDAR KAUR 



701 



Dark 



-log M CMU 



Fig. 14. Effect of /;-c:hlo!ophenyl dimethyl urea (CMU) on the growth of etio- 

 lated pea stem sections in the dark and after a brief exposure to morphogenetically 

 active red light. 



55r 



e 



6 



Sucrose + lAA 



[m] CMU (xlO'") 

 Fig. 15. Interaction of p-chlorophenyl dimethyl urea (CMU), sucrose, and indole 

 acetic acid (lAA) on the growth of etiolated pea stem sections in the dark. 



