A GENETICO-PHYSIOLOGIC AL STUDY ON THE FORMATION ETC. 
41 
“ Hanbun.” 
“ Genroku.” 
F 1 “ Hanbun.” x “ Genroku.” 
Stigma 
Colourless 
Red to purple 
Red to purple 
Palea 
Brown 
Purple localized in streaks 
from the tip to down¬ 
ward on yellow ground 
colour 
Self purple on brown 
ground colour 
Glume 
Red 
Purple 
Purple 
Leaf-sheath 
Green 
Green with purple stripes 
Green with purple stripes 
Tims we see tliat the dominant colours are ; in the awn purple over red, 
in the stigma red over colourless, and in the leaf-sheatli purple striped over 
non-striped. A new type of palea was found in the F l plant, namely the self 
purple on the brown ground colour (see Plate I). The brown ground-colour 
is dominant over yellow, and the self purple is dominant over the above two, 
being epistatic to brown. A complete linkage is found between the self purple 
and brown ground colour. The localized pvuple is always non brown with 
respect to the ground colour in the paleas. In the F, generation, we obtained 
the following results. 
Table 17. 
Showing the result obtained in F. i . 
Stigma 
coloured 
Stigma 
colourless 
Total 
Pt. I. 
Pt. II. 
Pt, I. 
Pt. II. 
Awn purple 
59 
49 
— 
— 
108 
Awn red 
— 
— 
12 
22 
34 
Total 
59 
49 
12 
22 
142 
Paleas, self purple (deep) 
4 
6 
•— 
— 
10 
„ „ (med 1 um) 
18 
16 
— 
— 
34 
„ „ (pale) 
14 
16 
— 
— 
39 
„ purple ocalized 
(prominent) 
4 
3 
— 
— 
7 
„ purple (medium) 
16 
8 
— 
— 
24 
„ brown 
— 
— 
8 
15 
23 
