44 



THE DEVELOPMENT OF RAW COTTON 



of cotton into a damp jungle, in which various secondary 

 troubles may arise ; while a plant with a large leaf area is 

 more likely to have its physiological condition seriously 

 upset by water-strain in the event of a spell of dry 

 weather. 



The length to which the main stem and the various 



2.1 



FIG. 9. SUCCESSION OF FLOWERS. (ViiRY DIAGRAMMATIC.) 



Representation of the way in which the flowers and consequently the 

 fruits open successively on the scaffolding of branches. 



branches extend is obviously dependent on the various 

 causes affecting growth-rate, as already sketched by us. 



Over and above this, however, there comes 

 Senescence. 



sooner or later in the career of each branch 



a period of " Senescence," due to internal causes akin 

 to the heat-poisoning which we have mentioned, and 



