IMPROVEMENTS IN WHEAT, 

 OATS, BARLEY 



MENDELIAN CLUES 



THE essential facts of Mendelian discovery 

 with regard to "unit" characters and their 

 grouping into pairs, in which one character 

 is dominant and one recessive, have been more 

 than once called to our attention and have been 

 illustrated again and again with instances drawn 

 from my own plant experiments. 



The cases of the black and white blackberries, 

 the thorny and thornless blackberry, and of 

 stone-bearing and stoneless plums, among 

 others, will be recalled. 



But we have also observed cases in which the 

 characters of two parents seemed to be blended 

 in the offspring, there being no clear dominance 

 of one character over another. Such was the 

 case, for example, with the sunberry, the primus 

 berry, the plumcot, and many others. 



Now it is peculiarly interesting to note, in the 

 light of our experiments with various fruits and 



