124 



PJtjlsiologlc((l Predetermination 



experiments it was shown that the most vigorous plants are the outcome 

 of the largest seeds. 



In view of what follows with regard to the large amount of experi- 

 mental work that has been carried out with cereals with the object of 

 improving the yield obtained by the selection of large seed, and in view 

 of the emphasis which has been laid for the most part in this work on the 

 assumption that the authors were dealing with genetic factors in their 

 selection, the importance of Nobbe's results justifies the quotation of 

 his table in full : 



The above results arc sununarised in the foUowine: table: 



