THE ANNALS OF APPLIED BIOLOGY. VOL VI, N08. 2 & 3 



PLATE V 





Fig. 1. Photo, of spaced iiml ciowJed barley plants as they stood during exf)eriment. 

 Crowded set at back on left, spaced plants in foieground. 



'^mmw^.-'.sr- ^.,m .^ 



Fig. 2. Photo, showing spaced barley plants temporarily placed close together for com- 

 parison with those that were pennanently crowded during experiment. Crowded set on 

 left, spaced set on right. 



