SUGAR-CANE 



407 



months accompanied by a relatively high temperatm-e de- 

 creased the tonnage of cane produced but increased the 

 percentage of sucrose in the juice, whereas the opposite 

 conditions greatly retarded the ripening of the cane, re- 

 sulting in the production of a high tonnage of cane having 

 a low sucrose content.' 



The following table illustrates the influence that the 

 variety has upon the composition of sugar-cane juice: 



Table 38. Showing Peecentagb of Sucrose, Glucose and Ash 

 IN THE Juice ,op Four Varieties of Sugar-Cane ^ 



That conditions of cultivation have a marked influence 

 upon the composition of sugar-cane is shown by the follow- 

 ing data (Table 39, page 408) from the Louisiana Station 

 secured as a result of the comparative study of plant and 

 stubble canes. 



In discussing these results, Browne and Blouin of the 

 Louisiana Station say: "There is, of course, a physiological 

 explanation of these differences. In stubble cane we have 

 a partially dwarfed condition and according to a well- 

 established law, when growth is checked, maturation is 

 ha,stened. Exactly the same effect is produced by the 

 non-fertihzation of cane. Canes grown on the non- 

 manured plots at the sugar experiment station average 

 much less in, weight, but are higher in sucrose than canes 

 which have been fertilized." ^ 



1 La. Sta., Bui. 91, p. 22. « La. Sta., Bui. 91, p. 23. 



» La. Sta., Bui. 91, p. 25. 



