260 



SOUTHERN FIELD CROPS 



Fig. 128. — A Cotton Plant Deficient in Storm Resistance. 



Bolls of upland cotton are usually of such size that from 40 to 

 110 are required to make a pound of seed cotton. 



When the boU ripens, it splits usually into four or five divisions, 

 exposing the seed cotton. The parts of the pod, or bur, separate 

 more or less completely. If they open wide and the outer walls 

 of the burs curl backward, the seed cotton may be held so 

 slightly that it is easily blown out by wind or beaten out by rain 

 (Pig. 128). 



