1252 
Journal of Agricultural Research 
Vol. XXVIII, No. 12 
between the two in regard to the rogue character. It would appear that sub¬ 
sequently the original 1:1 gametic ratio is disturbed by somatic mutation, so 
that from the upper nodes of the main stem and from its branches an excess of 
rogue gametes is produced. No attempt has been made to determine what 
external influences, if any, affect the gametic ratio. 
Table II. Distribution according to nodal origin from the F j hybrid between Rice’s 
830 and rogue of self-fertilized progeny and of progeny derived from back-crosses 
with Gradus type 
1 
Hybrid 9 
Hybrid o* 
Self-fertilized 
Non¬ 
rogue 
Rogue 
Ratio 
Non¬ 
rogue 
Rogue 
Ratio 
Non¬ 
rogue 
Inter¬ 
me¬ 
diate 
Rogue 
Ratio 
8 .... 
4 
2 
9__ 
2 
3 
1:1.5 
9 
9 
1 : 1.0 
4.5 
iS 
10 .... 
3 
3 
5 
1.0 
0.4 
2 
9 
2 
.. 
1 : 8.0 
11 ... 
12 
l 
32... 
7 
3 
0.4 
1 
o 
3.0 
13..... 
4 
3 
0.7 
9 
Q 
14.... 
9 
8 
0.9 
2 
4 
2.0 
1 
o 
8 
10.0 
15..... 
6 
9 
1.5 
1 
•J 
10 
7 
13.0 
16... 
4 
7 
1.7 
g 
17..... 
2 
2 
1.0 
1 
9 
27 
16 
15 
17 
A 
29.0 
18.. 
2 
10 
l 
19... 
20 ... 
2 
5... 
6 ... 
l 
q 
7__ 
2 
q 
8 ...-- 
2 
u 
O 
9.... 
4 
1.0 
5 
12 . .... 
2 
o 
i 
A 
13... 
1 
3 
3.0 
‘k 
5 
2 . O 
14...... 
18 
11 
18 
K 
15... 
4 
2 
0.5 
16. 
i 
i 
37..... 
18.. 
0 
4 
Total. 
64 
54 
1 : 0.8 
13 
24 
1*1 Q 
8 
37 1 
217 
1:31 
1 . 1 . o 
254 
