824 
Journal of Agricultural Research voi. xxiv. No 10. 
Table V .—Frequency distribution of ratio the fourth to the ninth 
nodes in Gradus rogue , Gradus F, and F2, hybrid plants . As the number of stipules 
measured at each node was not always the same , the ratios in any one class are expressed 
in percentages —Continued. 
Ratio. 
F2 hybrid: 
1.05.. 
1.15.. 
1.25.. 
I- 35 - • 
I-45- 
I-55-- 
1.65.. 
1- 75- 
1.85.. 
1.95.. 
2.05.. 
2.15.. 
2.2K. . 
2.3F • 
2 . 45 - 
2- 55-• 
2 ,6t;.. 
2.75.. 
2.85.. 
Nodes. 
Fourth. Fifth. Sixth. Seventh. Eighth. Ninth. Total 
Per cent. 
49 
96 
96 
96 
48 
45 
26 
20 
80 
50 
10 
20 
67 
45 
96 
48 
96 
48 
I 
6 
II 
15 
14 
26 
8 
8 
I 
Per cent. 
a 207 
3 
14 
22 
20 
21 
6 
3 
3 
49 
o 
49 
49 
98 
42 
20 
42 
42 
40 
34 
42 
90 
49 
49 
o 
49 
a 205 
Per cent. 
.96 
4-33 
3.85 
27.40 
21.61 
11.52 
5*30 
2.88 
.48 
a 208 
Per cent. 
1.44 
1.44 
4.82 
8.18 
16.33 
26.40 
14.90 
18.20 
4.81 
2.40 
.96 
a 208 
Per cent. 
4 
8 
17 
20 
17 
21 
4 
3 
49 
49 
90 
78 
55 
00 
55 
92 
39 
42 
49 
a 205 
Per cent. 
2 
5 
15 
25 
22 
13 
10 
2 
I 
49 
49 
94 
88 
70 
00 
10 
20 
30 
40 
47 
204 
Per cent. 
.08 
. 24 
. 16 
.24 
.16 
.41 
1.62 
4.37 
7-52 
6.87 
14.63 
9.70 
13.90 
14.70 
10.20 
9-55 
3-48 
1*53 
.48 
a The actual number of measurements from which the frequency distributions (expressed in percentages) 
were derived. 
Table VI .—Constants for stipule shape calculated for each node separately and for the 
plant as a whole , based on data in Table V 
Nodes. 
Fourth. 
Fifth. 
Sixth. 
Seventh. 
Eighth. 
Ninth. 
All. 
Type: 
M. 
1-705 
1.706 
1.782 
1.797 
1.782 
1.766 
1.765 
(T . 
.205 
-155 
. 170 
.177 
•130 
.130 
1-53 
C. V. 
12.05 
8. II 
9-55 
9.88 
' 7-30 
7-32 
8.66 
Rogue: 
M. 
2.001 
1.994 
2.133 
2.411 
2.500 
2.515 
2.259 
cr . 
.294 
-223 
.223 
.288 
.257 
.266 
-339 
C. V. 
14.70 
11.20 
10.46 
11-53 
10.28 
10.59 
15.00 
F, hybrid: 
M. 
1-725 
1.846 
1.926 
2.308 
2.410 
2.485 
2.118 
<r. 
.174 
.217 
-275 
.266 
.261 
. 172 
-377 
C. V. 
10. II 
11.79 
14.32 
11.56 
10.82 
6.93 
17.79 
Fg hybrid: 
2.384 
M. 
1-957 
1.941 
2.173 
2.370 
2.405 
2.205 
<r. 
.256 
.206 
. 148 
. 184 
. 170 
.171 
•275 
C. V. 
13.08 
10.61 
6.81 
7-75 
7-13 
7.71 
12.47 
