272 OS THE INHERITANCE OF Tl IE FLOWERING TIME IN PEAS AND RIC E 
and 8) 
Tschcriiuik records in Fruwirtli's "Züchtung der landwirtschaft- 
lichen Kulturpllanzen" Vol. 4, (2 Auf.) pp. 176, 238 and 314, that in wheat, 
barley and rye, the early ripening character seems to be partially dominant, 
and in Table 39 of Emerson and East's work (1912) on mai/.e, we see that there 
is a minimum frequency class within the variation ranges of the two F2 proge- 
nies (1127) and (1128), and the number of individuals in the early flowering 
group is greater than that in the late flowering group. From these facts, we 
venture to propose that, in cereals, incomplete dominance of the early ripening 
may be a law. We did not forget to observe the rekition between morpho- 
logical characters and shooting time in the F^, but could not find any cor- 
relation between them, as we had seen in the case of peas between the flower- 
ing time and the colour of their flowers. 
F3 Raising. 
From 80 offsprings of K- P- x A- P. i (Table 19), we selected 46 indivi- 
duals with different shooting dates, and raised 10 Eg offsprings of each indivi- 
dual, together with 20 individuals of each parent variety. In this year, the 
lowering of the temperature during the shooting time of K- P- was greater 
than in the previous year. Consequently, the shooting of K. P. individuals 
occurred slowly, and one of them and three of hybrid Eg individuals (in fami- 
lies 35, 45 and 46) did not eventually shoot. 
The frequency distributions of the number of days from sowing to shoot- 
ing is shown in Table 20. From this table, we can not draw any definite 
conclusion, except that there occurred four families, Nos. i, 2, 45 and 46, 
which produced variation types cjuite similar to that of either of the parent 
varieties, suggesting that their Eg parents had returned, in shooting character, 
to the original parents. 
Raising. 
From the result of the Eg raising in the previous year, we were convinced 
