236 ON TlIK INHERITANCF, OF THE FLOWERING TIME IN PEAS AND RICE 
ex[)criniciit, because the flowering time of the dwarf plants which appear as 
the result of segregation may be iiinuenced by tlie shading and usurpation 
of the nutrient of larger growing sister plants, and some of those dwarfs 
woultl not [)re)duce sufficient seeds for further experiments. (One individual 
class 79 of the family II x 13.5, already referred to, produced only 3 pods 
and 8 seeds) 
From the two above mentioned causes, we determined to take new cros- 
ses and to conduct the experiments anew. 
F3 Raising in 1910. 
Having determined to continue the experiments with new materials, we 
made new crosses during P^cbruary and March of the present year in a forc- 
ing house. But as there was some space in the garden available for the ex- 
periment, we raised the Fg for the purpose of using the results of this rais- 
ing for reference in our new experiments. 
We selected 20 F^ individuals which flowered within the variation range 
of the I. p. variety, 25 F^ individuals which flowered within the variation 
range of G- P- variety, 3 G. P. individuals which flowered in 67 days, and 
3 I- P. individuals which flowered in 46 days. VVe tried to take 30 seeds 
from each of the selected individuals, but some dwarf individuals did not 
produce the required number of seeds, as in the case of the parents of the 
last two families No. 44 and 45 in Table 3. 
The sowing of the seeds was done on May 5. After the sowing, dry 
weather prevailed and sprouting was retarded, but on the 23rd and 24th of 
that month, plantlets ajjpeared evenly. 
The results are shown in Table 3. From this table we see that some of 
the selected early and late F^ plants produced offsprings whose variation 
ranges and types strongly suggest that the parent F^ plants had become con- 
stant (homozygous) in their flowering character (Nos. 1-14 in the early; Nos. 
36-45 in the late), and the remaining F^ plants produced offsprings whose 
vaviation types are irregular and suggest that they must be offsprings of 
