218 Relations between GroivtJi and Environment 



Whole 

 plant 



Shoot, 

 with 

 pods 



Shoot, 



without 



pods 



I 



Apr. 26 May 3 



July 5 



Fif^. 4. Summer Grotrtli. Dry weights of 10 pea plants^, series M, grown from 

 April 2(3th — luly I'itli, 191G. Nutrient solutions changed weekly. 



