ON THE SKl.ECTION OF RAPE SEED. 



463 







A.ir-di'y 



nicitter. 





Sorts. 



Specific 



Water. 



Fat. 



Fat in dry 





gravity. 





matter. 





1. 109 



7.82% 



43-77% 



47-48% 





1. 112 



7.96 



42.32 



45-98 





1. 123 



S.36 



41.27 



45-03 





1. 158 



804 



40.11 



43.62 



The oil content differs much with differents sorts. Colza, which 

 has the lowest specific gravity, has been found to be richest in oil, 

 then follows Okuna and the oil content increases with the decrease 

 of the specific gravity. The results obtained by Wollny with Dutch 

 rape agrees with mine and is as follows : — 





VVei^Ht of loo 

 jjrains. 



Sp. gr. 



Fat & oil. 



a.) 



Large seed 



0.554 



1.0393 



49-51% 





Medium seed 



0.429 



1. 1004 



49-03 



c.) 



Small seed 



0.336 



1.1141 



46.77 



b.) Relation of the Oil Content to the Specific Gravity of 

 Seed. 



Three different sorts were used for experiment. The percent- 

 age of water and oil was determined for their original samples as 

 well as for each of the foiu" groups, into which the seeds were 

 divided according to specific gravit)-. The results were as 

 follows : — 



