10 



BULLETIX 188, U. S. DEl^ARTMENT OF AGRICULTURE. 



in some cases from the estimate made to represent the entire plat, as 

 shown in Tal)le III, but the general relationship between the spacing 

 of the plants and the number of heads })er plant remains unchanged. 



Fig. 5. — Wide-spaced niilo plants, showiuL: excessive tillering and huk of uiiilormity iu heading and 

 ripeuing. The seed is set on the main stalk, while on some of the tillers the heads are just beginning 

 to flower and on others the heads are just emerging from the boot. (Photographed June 4, 1913.) 



Table V. — Heads ofmilo matured on different dales in six plats, where the plants were 

 spaced differently, the percentages being based on actual counts of 50 plants in each plat, 

 at the San Antonio Experiment Farm in 1913. 



Spaciuir. 



Number of heads — 



Plats considered separately: 



Not thinned 



2 inches apart 



5 inches apart 



8 inches apart 



12 inches apart 



18 inches apart 



Plats averaged in pairs: 



Not thmned and 2 inches 

 apart 



5 and 8 inches apart 



12 and 18 inches apart 



On 50 

 plants. 



177 

 174 

 234 

 231 



70 

 175 

 231 



Per plant. 



1.2 

 1.5 

 3.5 

 3.5 

 4.6 

 4.6 



1.3 

 3.5 



4.6 



Percentages of mature heads. 



June. 



26 



July. 



2 



5 



95 



100 



95 



98 



78 



92 



82 



94 



95 



99 



97 



99 



96 



93 



100 

 100 

 100 

 100 

 100 



100 

 100 

 100 



