236 MENDELISM 
The F, plants produced grains all of which were 
fully as hard as those of the Manitoba variety. 
These grains were sown, and it was found that some of 
the resulting plants produced strong grains and others 
weak ones, and that the former were to the latter very 
nearly in the numerical ratio of 3:1. Actually they 
were as 152: 48 in a sample of 200 taken at random. 
In order to obtain confirmation of this most impor- 
tant result, Biffen sent samples of the grains borne 
by the F, plants to a well-known authority on milling 
wheats, requesting his judgment upon them, but with- 
out telling him their manner of origin. The answer 
was even more satisfactory than could possibly have 
been anticipated. Certain of the samples were stated 
by the expert to belong to the variety Red Fife, 
which is the name of the particular strain of Manitoba 
Hard originally made use of in the experiments, 
whilst others were assigned to a definite strain of 
ordinary weak English wheat. The segregation of 
these characters was, therefore, complete, strength 
being a Mendelian dominant to weakness. 
In the next generation certain of the dominant 
plants, as was to be expected, bred true, and amongst 
them were individuals which combined with strength 
of grain the other desirable qualities of the second 
parent. The problem has, therefore, been completely 
solved, and there can be little doubt that when these 
new types are brought into general cultivation the 
profit obtainable from the growing of wheat in this 
country will be increased by several shillings to the 
acre of crop grown. 
