204 



ELEMENTS OF AGRICULTURE 



some instances, it has been stated that large bolls are 

 always associated with late maturity, but recent experi- 

 ments 1 indicate that large bolls can be produced on the 

 early maturing, short-jointed type, and greatly increase 

 the total yield, provided a maximum number of bolls 

 is maintained. 



The percentage of lint to seed is of importance. At 

 present the average is about two pounds of seed to one 



FIG. 105. (1) Big Boll. (2) Small Boll. (3) 

 and (4) Short fruit limbs. (5) Cluster type 

 fruit limb. (After Bennett.) 



of lint, or 33 J per cent of the total weight; but samples 

 are often found in which the amount of lint will run as 

 high as 40 per cent. 



In the selecting of cotton for breeding and improve- 

 ment, careful attention should be given to securing plants 

 of early fruiting type and medium size, not over five 

 feet high, with many bolls of large size and high per- 



1 Texas Experiment Station Bulletin No. 7j 



