SUGAR-CANE 



407 



months accompanied by a relatively high temperature 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. 1 



The following table illustrates the influence that the 

 variety has upon the composition of sugar-cane juice: 



TABLE 38. SHOWING PERCENTAGE OF SUCROSE, GLUCOSE AND ASH 

 IN THE JUICE OF FOUR VARIETIES OF SUGAR-CANE 2 



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 

 hastened. Exactly the same effect is produced by the 

 non-fertilization 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." 3 



1 La. Sta., Bui. 91, p. 22. 2 La. Sta., Bui. 91, p. 23. 



3 La. Sta., Bui. 91, p. 26. 



