38 
I. NAG AI : 
• 
Stigma 
Awn 
Chromogen in 
awn 1 
Paleas 
Glume 
IJL “ Daikkoto ” 
Colourless 
Brown 
I 
Buff 
Buff 
^ “Togo” 
?? 
Faint yel. 
VI 
?» 
?» 
1<\ “ Dai.” x“ Togo ” 
?» 
Bed 
1 + 
Brown 
Bed 
IjL “ Ivura-fusagi ” 
?? 
Broun 
I 
?» 
?» 
“ Nagoya-shiro ” 
?» 
Faint yel. 
V 
Buff 
Buff 
Fj “ Kura.” x “ Nago.” 
?? 
Bed 
I 
?? 
Bed 
The red awn changes to brown when fully mature and becomes indistin¬ 
guishable from the brown one at the time of harvest. The purple is much 
more stable than the red, hence the purple remains unchanged even at the 
time of harvest. The segregation observed in the F, generation was as 
follows : 
Table 16. 
Showing the result obtained in F 2 . 
Kind of cross 
Awn red 
Awn brown 
Awn faint yel. 
Totals 
“ Daik.” x “ Togo ” Pt. I 
77 
14 
24 
115 
„ II 
113 
27 
42 
182 
190 
41 
66 
297 
Expect. (9 :3: 4) 
166.90 
55.69 
74.25 
Probable errors 
± 5.765 
± 4.537 
±5.033 
Diff. (ob.— expect) 
+ 23.04 
-14.69 
-8.25 
“ Kura.” x “ Kago.” Pt. I 
85 
25 
32 
142 
„ II 
125 
43 
68 
236 
210 
68 
100 
378 
Expect. (9:3:4) 
212.64 
70.85 
94.50 
Probable errors 
±6.506 
-1-5.118 
±5.679 
Diff. (ob. —expect.) 
-2.64 
-2.88 
+ 5 50 
1. One gram dried awn was extracted with 30 ce of a 45 per cent alcohol. Five cc of the 
extract were reduced by means of one cc of concentrated hydrochloric acid and the due amount 
of magnesium powder. 
