WiNIFKKD E. l^RKNCHLEY 



159 



house surrounding the crowded square. The greater number of the 

 plants which only formed a few ears (from 0-3) were grouped together 

 at one end of the house which is occasionally slightly shaded by other 

 parts of the structure. This concentration may be merely coincidence, 

 or it may be due in some way to less advantageous conditions than the 

 rest of the plants endured. The rest of the bench space was more equally 

 illuminated, and the plants with similar numbers of ears were well 



Fig. 6. Diagi-am showing the number of e.ars produced by each of 64 crowded 

 barley plants in the positions they occupied during growth. 



distributed and not grouped at all. In the crowded set the number of 

 ears per plant depended very largely upon the position in the square. 

 The majority (22 out of 28) of those in the outer rank produced ears 

 varying in number from 1-11 whereas only 10 plants in 36 in the inner 

 squares had any ears at all, from 1-9. The distribution is shown in 

 the diagram (Fig. 6), which gives the number of ears for each plant 

 occupying a certain position in the square. 



