4 o 



U. SUZUKI. 



occasionally irrigated with a half saturated gypsum solution to 

 keep it constantly moist. On the 24th February the germination 

 had fairly set in, and the shoots were subjected to the following 

 treatments : 



1. The shoots were kept in perfect darkness until the 23rd 

 March (4 week's after germination) and the gradual change in 



nitrogen compounds was observed. 



a) b) 



2 weeks shoots (dried 4 weeks shoots (dried 



on the 9th March). on the 23rd March). 



Number of Shoots. 1220 1224 



Length. 6-8 cm. 10-15 cm - 



Total dry weight. 7-437 g- 7-73° 



Dry weight of 100 shoots. 0.610 g. O.631 



In 100 parts of dry matter. 



a) b) 



Total nitrogen. 0.13 9.53 



Albuminoid nitrogen. 3.1 x 2.94 



Asparagine nitrogen. 2.30 2.35 

 Nitrogen in phospho- 



tungstic precipitate. 1.60 1.88 



Other nitrogen. 2.12 2.36 



In 100 parts of total nitrogen. 



a) b) 



Total nitrogen. 100.0 100.0 



Albuminoid nitrogen. 34.1 3°«9 



Asparagine nitrogen. 25.2 24.7 

 Nitrogen in phospho- 



tungstic precipitate. 17.5 18.7 



Other nitrogen. 23.2 25.7 



Every 100 shoots contained : — 



a) b) 



Total nitrogen. 0.0557 o.o^oi 



Albuminoid nitrogen. 0.0190 0.0186 



Asparagine nitrogen. 0.0140 O.0148 

 Nitrogen in phospho- 



tungstic precipitate. 0.0098 0.0119 



Other nitrogen. 0.0129 0.0149 



