18 
Research Bulletin No. 4 
Data are available from 7 F x red ears obtained from 
self -pollinated, homozygous, variegated plants. Five of 
these red ears were self-pollinated and two were crossed 
with pure white-eared plants. The results in F 2 and F 3 
were as follows : 
Number of Plants with 
Seeds Planted from 
Self-red 
Variegated 
Non-red 
Ears 
Ears 
Ears 
Fi reds from selfed, homo., vgtd. Pi's 
119 
37 
0 
46 
45 
0 
F2 reds from selfed Fi reds 
9 
2 
0 
16 
0 
0 
F2 reds from Fi reds X white 
1 ear selfed 
26 
0 
5 
2 ears X white 
40 
0 
37 
The above is approximately what would have been ex- 
pected, had the F 1 red ears that arose from self-polli- 
nated, homozygous, variegated-eared plants been pro- 
duced by a cross between red-eared and variegated-eared 
races. 
Of the F x reds arising from self-pollinated, heterozy- 
gous, variegated-eared plants, nine were selfed and two 
were crossed with whites. The results secured in F 2 and 
F 3 follow: 
Seeds Planted from 
Self-red 
Ears 
Variegated 
Ears 
Non-red 
Ears 
Fi reds from selfed, hetero., vgtd. Pi's 
104 
23 
0 
6 
7 
0 
105 
0 
38 
1 ear X white 
12 
0 
7 
F2 reds from selfed Fi reds of (a) 
59 
12 
0 
1 ear selfed 
23 
0 
0 
From the above it appears that the F 1 red ears, arising 
from self -pollinated, heterozygous, variegated-eared 
plants behave in some cases as if they were hybrids be- 
tween red-eared and variegated-eared races and in other 
