33 



of the leaves to some extent ; but assuming that the more rapid 

 transformation of glucose occurs in the stems, then the leaves should be 

 expected to supply much glucose for this continous transformation. 

 Thus, the glucose produced in the leaves must enter the stems more 

 rapidly than the saccharose does. Accordingly, if the migration and 

 transformation of glucose contained in the leaves are quicker than 

 the migration and transformation of saccharose, the greater accumu- 

 ration of glucose found in the leaves at evening must be due to the 

 more active production of glucose during the day. 



If these sugars exist in a dissolved state in the cell-sap of the 

 rice plant, the strength of sugar solution at the time of flowering and 

 at maturity should be as follows : 



Table 29, Sugar Solution in the Plant Body. 



It should be borne in mind, however, that these figures are 

 only approximate, because the method of water estimation gives not 

 only the total sum of free and combined water in the plant body 

 but also any substances that are evaporable at 100 C. As explained 



