354 



U. SUZUKI. 



Experiment with the Soy Bean. 



Since an experiment with shoots of the soy bean had 

 convinced me that very small shoots of g — iocm. height do 

 not give a decisive answer, larger shoots were selected for the 

 chief test. 



The shoots had an average length of 18 cm. 



{a) Original, dried at the beginning of the experiment. 

 Number of shoots 51, dry weight = 5. 197 g. 



(b) Control. Kept 52 hours in distilled water in darkness. 

 Number of shoots 51, dry weight = 4.804 g. 



(c) Test shoots. Kept 52 hours in darkness, deprived of 

 oxygen. Number of shoots 50, dry weight = 4.592 g. 



Analysis : 





In 100 parts of dry matter 



For 100 parts of total nitrogen 





Original. 



Control. 



Test shoots. 



Original. 



Control. 



Test shoots. 



Total nitrogen 



9.69 



9-83 



10.39 



100.0 



100.0 



100.0 



Protein nitrogen ... 



2.49 



2.44 



2.50 



25.70 



24-93 



24.07 



Asparagin 















nitrogen ... 



5.80 



6.20 



5.90 



59.70 



62.95 



57.41 



Ammonia 















nitrogen ... 



0.33 



0.26 



0.31 



2-35 



2.61 



3.01 



Amido-nitrogen ... 



1.17 



0.93 



1.68 



12.25 



9.51 



15.51 





Asparagin. 





In 100 parts of dry matter 



Every 100 shoots contain 



Control ... 



29.20 



2-75' g- 



In absence of oxygen ... 



27.79 



2.552 g. 



In addition we place here the amount of the primary amido- 

 compounds in the presence, and in the absence of oxygen, 

 showing that their decrease in the presence of oxygen is inti- 

 mately connected with the increase of the asparagin. 



