R. N. Sal AM AN 



191 



value of each weight group was appHed as was used to determine their 

 standardised mean yields. 



The results are shown in Fig. 3. Concentrating on the production of 

 heavy ware (Class 1 of the weight series rendered sohd black in the 

 figure) it will be seen that, except for a very shght increase, viz. -5 per 

 cent., of this class in the B series over the A, there is a steady decrease 

 of heavy ware with every increase of weight of the seed. 



10-6 lb 



10-5' 



10- 



7 

 6 

 5 

 4 

 3 

 2 



1 



■5 







C D 



Fig 3. 



A. Sets weighing -6 oz. each. E. Sets weighing 40 ozs. eaeli. 



B. „ ,, 1-33 ozs. „ F. „ „ 5-33 ozs. „ 



C. ,, ,, 20 ozs. ,, 0. ,, unselected. 

 J). ,, ,, 2'()6ozs. ,, 



^^^^^H Represents the weight of tubers of 3-33oz3. and over in every lOJlb. sample. 

 ^^^^ ,. ,. ,. 2.0OZS. „ 



wzm. •' " '■ 1°^ 



„ less than loz. in wt. „ ,, 



