198 



STUDIES IN INDIAN SUGARCANE 



that Khadya, which was examined at a different time from the rest, has been 

 omitted from the Sunnabile series. 



Laboratory measurements of laminas in 10 canes of each variety, in inches. 



From a study of this table we are able to draw a certain number of 

 conclusions. 



(a) In the Saretha group the narrowest part is 1" aboye the base of the 

 leaf. There is a marked pinching in above the base and the reverse is, if any- 

 thing, the case in the Sunnabile series. Taking as an expression of this 



1916. Saretha group || , Sunnabile [j 



103 



i 



1917. Katha section 



no 



] 



Average-^ , Sunnabile jrr. . 



78 



Mesangan section ^ 



(6) The widest j)art of the leaf is lower down (19" from the base) in the 

 Sunnabile series than it is in Saretha (25" from the base), and the figures for 

 the two years show marked similarity. But the Sunnabile leaf is shorter, and, 

 to determine the proportional position of the widest part, it becomes necessary 

 to include the average total length of leaf. Using as an exjDression of this the 



formula, l^l ^t.nce fron. h.se to widest part ^^.^ j^^^^ ^^ f^jj^^^ ._ 

 ' total length of loaf 



0-40 



0-41 



