REPORT OF THE UHEMIST 



179 



SESSIONAL PAPER No. 16 



Though probably no direct relationship exists between size of root and composi- 

 tion, these data indicate clearly that the smaller roots are the richer ; almost invariably 

 increase in size is accompanied by decrease in dry matter content, when individual 

 roots of the same variety are compared, and, in a large degree, this observation also 

 holds true when comparing averages from a number of varieties, from crops of differ- 

 ent seasons. 



CARROTS. 



The five varieties examined and here reported on are among those which have 

 been grown and analysed for' a number of years past. 



Analysis of Carrots, C.E.F., Ottawa, Ont., 1910. 



Variety. 



Ontario Champion 



Half Long Chantenay 



Improved Short White 



Mammoth White Intermediate. 

 White Belgian 



Water. 



p.c. 



89 04 

 89-64 

 89 85 



89 97 



90 02 



Dry 



Matter. 



P- 



10 

 10 

 10 

 10 

 9 



c. 



•96 



•36 



15 



03 



•3S 



Sugar 



in 

 Juice. 



p.c. 



•92 

 •44 

 •33 

 •25 



•22 



Average 

 Weight of 

 One Root. 



Lbs. 



1 

 2 

 1 

 2 

 1 



Oz. 



3 

 1 

 3 

 1 

 3 



While the differences in dry matter content, throughout the series, are not large, 

 considerable variations in sugar — the chief nutrient — may be observed. It would 

 appear from this, as from previous work, that there is not the same close relationship 

 between dry matter and sugar in carrots as is found in other farm roots. 



The average results for the past six years are appended. 



Carrots — Average Composition. 1905-1910. 



It is interesting to note, comparing the results from the commencement of the 

 investigation, that the annual averages for dry matter and sugar — and more especially 

 for the former — are so close. 



1G— 12J 



