1. 



HYBRIDIZING WHEAT AID EMffiR 



In trod got ion 



In the crossing of any kind of plants where uniform 

 results are desired it is etosolutely necessary to start 

 with uniform parents. Even in pure lines there is always 

 oonsideralDle variation. For the work reported in this 

 paper, pure lines of wheat, so far as it is possible to 

 secure them, were used for one parent and for the other a 

 pure line of Black Winter Emmer. 



Object 



The object of the investigation was: (1) to determine, 

 if possible, any characters that are inherited in Mendelian 

 fashion; (2) to secure new types which might be of value. 



Review of Previous Work 



The work done with the wheat emmer cross has been 

 in general very unsatisfactory and, like the work reported 

 in this f®f)er, has not been carried to a successful end. 

 C. E. Saunders"^ made reciprocal crosses of Colorado wheat 

 and winter emmer which gave him in F„ fifteen distinct 

 types where winter emmer was used as the female parent and 

 twelve types where winter emmer was the male parent. The 

 poorest sorts were eliminated end no definite mathematical 



