4l6 CECIL YAMPOLSKY 
Table 2. Germination of Seeds from Fi Female Plants 
Plant 
Number of Seeds 
Number Germinated 
Percentage 
Sex 
II 
5 
0 
Ill 
33 
II 
33-3 
9 
IV 
I 
0 
V 
87 
19 
21.8 
9 
VI 
6 
2 
33-3 
9 
VII 
230 
118 
51-3 
9 
VIII 
I 
0 
X 
189 
15 
7.9 
9 
XVI* 
6 
0 
XVII 
3 
0 
XXI 
107 
14 
13 
9 
XXIII 
2 
0 
XXV 
3 
I 
33-3 
9 
XXVII 
•7 
7 
9-^ 
0 
XXXI 
47 
0 
0 
A 
4 
2 
50 
9 
D 
2 
0 
E 
10 
2 
20 
9 
G. 
5 
0 
H 
I 
0 
I 
15 
I 
6.6 
9 
/ 
7 
0 
L 
65 
7 
10.7 
9 
Total 
934 
199 
21.3 
9 
* Seeds from plants XV and XXIV not planted. 
F2 Generation from Female Plants 
All the seedlings grew to maturity and they were all females. 
Thirty-nine plants were kept under observation, and they were treated 
in the same manner as the F2 offspring; they were examined throughout 
their growth. Nineteen plants (see table 3) failed to produce any seeds 
though they bloomed profusely. Two of the nineteen, however, were injured 
and killed. One died at six months; the others lived from eight to twelve 
months. These plants may have been pure females, though they might 
possibly have produced a few seeds if they had lived longer. 
The highest number of seeds produced was 109 by plant no. Vi, a 
daughter of plant no. V which had produced 87 seeds. However, plants 
V2, V3, V5, V7, Vg, and V9, of the same parentage as Vi, failed to produce 
any seeds. Plant V4 produced 10, and plant Ve 39 seeds. The offspring of 
plant L behaved similarly; one produced 10 seeds, the other none. 
Plants nos. V7, XXVI Ii, and XXVI I2, although they showed swollen 
ovaries, failed to set any seeds and they were counted among those that 
produced no seeds. They produced no male flowers as far as could be 
observed. The thirty-nine plants produced a total of 34 male flowers and 
358 seeds. The same variations in the disposition of the male elements 
were observed in these plants as in the other generations. 
The 118 plants secured from the 230 seeds sown from plant no. VII 
