482 



TiiiRTv-FiRST Annual Report 



47 plants having all soft seeds; 



23 plants having soft and intermediate seeds ; 



4 plants having hard and intermediate seeds; 



3 plants having hard and soft seeds ; 



1 plant having hard, soft, and intermediate seeds ; 



3 plants having all hard seeds. 

 The seeds of the third generation seem to confirm the second 

 generation classification fairly well. The five plants with seeds 

 all intermediate probably indicate either an error in the classifica- 

 tion of the second generation or some environmental disturbance 

 in the growth of the intermediate plants, such as receiving more 

 water than the rest of the plants. The breaking up in the groups 

 planted from seeds selected from plants having both hard and soft 

 seeds is somewhat irregular, and the intermediates, as well as the 

 intermediates occurring in the hard class, require further testing 

 in at least another generation. 



So far in this cross at least one thing is clear: the two types 

 of texture have segregated sharply in the second generation and 

 have maintained their identity. There is also a fair indication that 

 there is a single factor difference beteen the two types of texture. 

 Along with the study of grain texture, considerable attention 

 has been given to the question of inheritance of earliness in order 

 to produce an early maturing variety. In the fall of 1919, selec- 

 tions were made from the second generation plants that headed 

 during the heading period of the early parent. 



Table VII shows the coefficient of heredity in the offspring of 

 34 of these earlv selections. 



TABLIv VII. — COEFFICIENT OF HEREDITY (r)lN THE OEESPRINC. OE 34 

 liARIvY SELECTIONS 







^ < 



March 



Mean Date of First Head of Offspring 

 April 



