PHOSPHORUS IN TOPS OF TOBACCO STEM SEGMENTS 



r 



> 



Q 



I 5 



cr 



CONTROL^M ^■ADENINE^^B J INDOLEACETIC 



DAYS 4 8 12 18 2328 4 8 12 18 2328 4 8 12 18 2328 4 8 12 18 23 28 



PHOSPHORUS IN BASES OF TOBACCO STEM SEGMENTS 



(- 

 I 



> 

 cr 



Q 



< 



a. 

 o 



cr 



UJ 

 CL 



in 



3 



cr 

 O 



I 



Q. 



lO 



o 



I 

 a 



<n 



< 



cr 



DAYS 4 8 12 18 2328 4 8 12 18 23 28 4 8 12 18 2328 4 8 12 18 23 28 



Figure 9. Effects of treatments with adenine sulfate and lAA on total, 

 inorganic, and organic phosphate contents in tobacco stem segments. Exp. 

 #G started 6/19/49. Initial pH 4.0.; KH2PO4 37.5 mg./l.; Adenine sulfate 

 40 mg./l.; lAA 0.04 mg./l. A. Upper halves of segments; B. Lower halves 

 of segments. Shaded portion of columns are inorganic fractions. White portions 

 are organic fractions. (Data from L. G. Holm.) 



