June, 1920.] 



SOME SOLUTION CULTURES OF WHEAT 



81 



Solution type 



and 

 salts employed 



Growth 

 criterion 

 (See text) 



Solution number (indicating salt proportions) 



Rl 



SI 



Rl 



S2 



Rl 



S3 



Rl 



S4 



Rl 



S5 



R2 



SI 



R2 



S2 



R2 



S3 



R2R3 



S4S1 



R3! 



S2 



R3R4R4R5 



S3,SrS2:Sl 



1 



Type A. 



H 



1 



2 



2 



2 



3 



1 



2 



2 



3 1 



2 



2 



2- 



2 



2 



Ca(N0 3 ) 2 



L 



2 



2 



3 



3 



3 



2 



3 



3 



3 3 



3 



3 



3 



3 







Ca(H 2 P0 4 ) 2 



S 



2 



2 



3 



3 



3 



2 



3 



3 



3 2 



3 



3 



3 



3 



2 



MgS0 4 



Rb 



2 



1 



1 



2 



3 



1 



1 



2 



3 



1 



1 



2 



1 



2 



1 





Rl 



1 



1 



2 



3 



3 



1 



1 



2 



3 



1 



1 



2 



1 



2 



2 



Ave. 



1.6 



1.6 



2.2 



2.6 



3.0 



1.4 



2.0 



2.4 



3.0 1.6 



2.0 



2.4 



2.0 



"2.4 



1.8 



Type B. 



H 



2 



2 



3 



3 



3 



2 



3 



3 



3 



1 



2 



2 



1 



2 



1 



Mg(N0 3 ) 2 



L 



3 



3 



3 



3 



3 



3 



2 



3 



3 



3 



3 



2 



2 



2 



2 



Ca(H 2 P0 4 ) 2 



S 



3 



3 



3 



3 



3 



3 



3 



3 



3 



2 



2 



2 



2 



2 



2 



CaS0 4 



Rb 



1 



2 



3 



4 



3 



1 



4 



3 



3 



1 



3 



4 



1 



3 



^ 1 





Rl 



2 



3 



3 



4 



3 



2 



4 



3 



3 



2 



3 



4 



2 



3 



2 



Ave. 



2.2 



2.6 



3.0 



3.4 



3.0 



2/2 



3.5 



3.0 



3.0 



1.8 



2.6 



2.8 



1.6 2 4 



1.6 



Type C. 



H 



2 



2 



3 



3 



3 



2 



2 



2 



3 



o 



2 



3 



1 3 



1 



Ca(N0 3 ) 2 



L 



2 



3 



3 



3 



2 



3 



3 



3 



3 



2 



3 



3 



3 



3 



3 



Mg(H 2 P0 4 ) 2 



S 



2 



2 



3 



2 



2 



3 



3 



3 



3 



2 



2 



3 



2 



3 







CaS0 4 



Rb 



1 



2 



3 



o 



3 



1 



2 



2 



3 



1 



2 



3 



2 



2 



2 





Rl 



1 



2 



3 



3 



3 



1 



2 



3 



3 



1 



2 

 2.2 



2 



3 



3.0 

 3 



1 



2 



2 



2.2 

 2 



Ave. 



1.6 



1 



2.2 

 2 



3.0 



2 



2.8 

 3 



2.6 

 3 



2,0 2.4 



2.6 

 3 



3 1.6 



1.8 2.6 



Type D. 



H 



1 



1 



3 



1 



3 



2 



Mg(N0 3 ) 2 



L 



3 



3 



3 



3 



2 



3 



3 



2 



2 



3 



3 



1 



2 



2 



1 



Mg(H 2 P0 4 ) 2 

 CaS0 4 



S 

 Rb 



2 

 1 



3 



1 



3 

 2 



3 

 4 



3 

 3 



2 



1 



3 



1 



3 



o 



4 



2 

 4 



1 



3 

 1 





 3 



2 

 3 



2 



2 



2 

 3 





Rl 



1 



3 



3 



4 



3 



2 



2 



3 



4 



2 







3 



3 



2 



1 



Ave. 



1.6 



1 



2.4 

 1 



2.6 

 2 



3.4 

 3 



2.8 

 3 



1.8 

 1 



2.( 



1 



2.6 

 1 



3.0 

 3 



2.0 

 1 



2.2 

 1 



2.6 



2 



2.6 



2.0 



1.8 



1 



Type E. 



H 



1 2 



' Ca(N(V 2 



L 



1 



1 



2 



2 



3 



2 



3 



3 



3 



2 



3 



3 



2 



3 



2 



Mg(H 2 P0 4 ) 2 



S 



2 



2 



2 



3 



3 



2 



3 



3 



3 



2 



3 



3 



2 



3 



2 



MgS0 4 



Rb 



3 



3 



3 



4 



4 



3 



1 



2 



3 



1 



1 



2 



1 



1 



1 





Rl 



1 



2 



3 



4 



4 



1 



2 



3 



3 



1 



2 



3 



1 



2 



2 



Ave. 



1.6 



1.8 



2.4 



3.2 



3.4 



1.8 



2.( 



2.4 



3.0 



1.4 



2C 



2.6 



1.4 



2.2 



1.6 



Type F. 



H 



1 



3 



3 



3 



3 



1 



2 



o 



3 



1 



2 



2 



2 



1 



1 



Mg(N0 3 ) 2 

 Ca(H 2 P0 4 ) 2 



L 



S 



2 

 2 



3 

 3 



3 

 3 



3 



3 



3 

 3 



2 



2 



3 

 3 



3 

 3 



3 

 3 



2 

 2 



3 

 3 



3 

 3 



2 

 2 



3 

 3 



2 



1 



MgS0 4 



Rb 



3 



2 



2 



3 



3 



3 



1 



2 



3 



3 



2 



1 



3 



1 



3 





Rl 



1 



2 



2 



3 



3 



2 



1 



3 



3 



1 



2 



3 



1 



1 



1 



Ave. 



1.8 



2.6 



2.6 



3.0 



3.0 



2.0 



2.0 



2.6 



3.0|1.8 



2.4 



2.4 



2.C 1.8 



1.6 



