820 
Journal of Agricultural Research 
Vol. XXIV, No. lo 
TablK II .—Gradus rogue X Gradus type and reciprocal in the F2 generation —Continued. 
Culture No. 
Rogues. 
[920—Continued. 
36 
0.131. 
0.184. 
27 
0.185.. 
20 
0.186. 
23 
0.187. 
38 
0.188. 
37 
0.189. 
34 
0.190. 
8 
0.191. 
26 
0.192. 
10 
0.193. 
26 
0.194. 
21 
0.195. 
31 
0.196. 
29 
0-197. 
7 
0.198. 
21 
Culture No. 
Rogues. 
Crosses. 
1920—Continued. 
O.IOQ. .. 
9 
32 
6 
15 
18 
30 
37 
3 
14 
39 
36 
7 
2 
32 
4.238 
I 
v^.xyy - * * * 
^ 2f>0 - - - - 
r\ r>r\'y 
rs or\^ . . 
. 
0 204 ... - 
r» 'Jot .... 
0.206. 
0 Ort'T .... 
2 
r\ 'yrA . . 
0 209 ....... 
r\ 0 m . . 
0 2 TT - * . . 
0 21? - - 
r\ OT “7 
.-.- 
Total(1919-20). 
81 
Table III.— Gradus rogue X Gradus type and reciprocal in the F3 generation 
Culture No. 
Rogues. 
Crosses. 
1920: 
0.371. 
0.372. 
0 . 373 - 
0 . 374 - 
0.375- 
0.376. 
0.377- 
0.378. 
0.379- 
0.380. 
0.381. 
0.382. 
0.383- 
0.384. 
0.385. 
0.386. 
0.387. 
0.388. 
0.389. 
0.390 
22 
10 
23 
12 
11 
13 
16 
13 
3 
6 
6 
192 
15 
10 
20 
12 
13 
17 
17 
15 
14 
Culture No. 
Rogues. 
0 —Continued. 
0 . 391 --.. 
10 
0.392 . 
15 
0.393 . 
12 
0.394 . 
14 
0-395 . 
16 
0-396 . 
24 
0.397 . 
3 
0-398 . 
25 
0.399 . 
17 
0.400 . 
21 
0.401 . 
18 
0.402 . 
II 
0.403 . 
22 
0.404 . 
17 
0.405 . 
18 
0.406 . 
23 
0 . 407 . • -. 
23 
0.408 . 
18 
Total. 
575 
2 
I 
2 
S 
AND F2 GENERATIONS OF CROSSES BETWEEN GRADUS TYPE AND THE 
Fi OF GRADUS TYPE WITH GRADUS ROGUE 
The cross typeX (type X rogue) gave an of 88 plants which showed 
a wide range of variation from typelike to roguelike plants in ^e seed¬ 
ling stage, but which at maturity were all rogues. Sixty-six plants 
of the sesquireciprocal crosses gave an Fj progeny (Table IV) of 1,477 
rogues, 6 intermediate types, and 22 volunteer hybrids (1.4 per cent). 
