4 2 



U. SUZUKI. 



In ico parts of total nitrogen 





a) 



°) 





r]\ 

 a ) 



Total nitrogen. 



IOC.O 



I OO.O 



100.0 



ICO.O 



Albuminoid nitrogen. 



39-8 



43-6 



47.1 



47-7 



Asparagine nitrogen. 



15.0 



T A *) 



»4- 2 



T Q T 

 1 O. 1 



10.7 



Nitrogen in phospho- 











tungstic precipitate. 17.5 



18.6 



6.3 



5.5 



Other nitrogen. 



27.7 



23.6 



28.5 



30.1 



Every 100 shoots 



contained 



: — 







a) 



h) 

 u ) 







Total nitrogen. 



0.0567 



0.0584 



0.0640 



O.0647 



Albuminoid nitrogen. 



0.0226 



0.0255 



O.030I 



O.0309 



Asparagine nitrogen. 



0.0085 



0.C083 



O.OI 16 



O.OIOS 



Nitrogen in phospho- 











tungstic precipitate. 



0.0099 



0.0107 



0.0040 



0.0036 



Other nitrogen. 



0.0157 



0.0137 



0.0182 



0.0195 



Calculating the total 



nitrogen 



of a) as 100 we have : — 





a) 



b) 



c) 



d) 



Total nitrogen. 



100.0 



103.O 



112.9 



1 14.2 



Albuminoid nitrogen. 



39-8 



45.O 



53-2 



54-3 



Asparagine nitrogen. 



15.0 



14.6 



20.5 



19.0 



Nitrogen in phospho- 











tungstic precipitate 



. 17.5 



19.2 



7.1 



6.3 



Other nitrogen. 



27.7 



24.2 



32.2 



34-2 



We see from the above results that the shoots produce, even 

 in full day-light, in the first stage of germination much organic 

 bases, the quantity of which is almost equal to that which is 

 produced in the dark. They increased for 19 days after germi- 

 nation, but afterwards decreased rapidly with the increase of 

 proteids. The transformation of the bases is far greater and 

 quicker than that of asparagin.* 



* Prianischnikow found in his experiment (" Zur Kenntniss der Keimungsvorgange 

 bei Vicia sativa," Landw. Vers. Stationen Bd. XLV, 1S96, S. 247), that the organic 

 bases in the germinating shoots of Vicia sativa undergo no noticeable change both in the 

 dark and in day-light. Thus, he says, " Die in Phosphonvolframsaure-Niederschlag 

 eingegangene Stickstoffmenge zeigt keine besondere Schwankungen, indem sie etwa Jj 



