GROWTH AND VARIABILITY IN HELIANTHUS 267 
Table 2. Constants for growth and variation in height of Helianthus plants 
Days 
Mean Height, Cm. 
Increase of Mean 
Height, Cm. 
Standard Deviation 
Coefficient of Variability 
7 
17.93 ± 0-14 
7.93 ±0.14 
1.62 =b 1. 01 
9.03 ± 0.57 
14 
36.36 ± 0.43 
18.43 ± 0.44 
4.83 ± 0.30 
13.28 dz 0.86 
21 
67.76 =b 0.78 
31.40 ± 0.89 
8.93 db 0.56 
13.17 zb 0.84 
28 
98.10 db 1.38 
30.34 =b 1.59 
15.60 ± 1.98 
15.90 zb 1.02 
35 
131.00 =b 1.73 
32.90 ± 2.21 
19.52 zb 1.22 
14.90 dz 0.95 
42 
169.50 =t 2.21 
38.50 =fc 2.81 
25.00 ± 1.57 
14.75 ± 0-94 
49 
205.50 =b 2.92 
36.00 db 3.67 
33.00 zb 2.07 
16.06 zb 1.03 
56 
228.30 ± 3.40 
22.80 zb 4.49 
38.47 ziz 2.41 
16.84 ± 1.08 
63 
247.10 =b 3.80 
18.80 =b 5. II 
42.92 dz 2.69 
17.38 =b 1. 12 
70 
250.50 db 3.76 
3.40 ± 5-35 
42.48 db 2.66 
16.95 =t 1.09 
77 
253.80 ± 3.99 
3.30 =t 548 
45.06 zb 2.82 
17.75 ± I-I3 
84 
254.50 ± 3.89 
0.70 =b 5-57 
43-90 zb 2.75 
17.25 zb I. II 
Table 3. Quartile distribution on each successive day of measurement of plants starting in the first 
quartile 
Days 
Quartile 
56 
63 
Total 
Percent of 
21 
28 
35 
42 
49 
70 
77 
84 
Grand Total 
I 
12 
9 
7 
6 
5 
5 
6 
6 
6 
6 
68 
45-33 
II 
2 
3 
4 
3 
5 
4 
3 
3 
2 
2 
31 
20.67 
Ill 
I 
2 
2 
4 
2 
3 
3 
3 
4 
4 
28 
18.67 
IV 
0 
I 
2 
2 
3 
3 
3 
3 
3 
3 
23 
15-33 
Grand tote 
.1 150 
Mean quartile 
position 
1.266 
1.666 
1-933 
2.133 
2.200 
2.266 
2.200 
2.200 
2.266 
2.266 
cr 
.115 
•944 
1.064 
1.089 
1-350 
1. 125 
1. 1 70 
1. 1 70 
1. 180 
1. 180 
Table 4. Quartile distribution on each successive day of measurement of plants starting in the 
second quartile 
Days 
Quartile 
2 
28 
35 
42 
49 
56 
63 
70 
77 
84 
Total 
Percent of 
Grand 
Total 
I 
II 
Ill 
IV 
I 
8 
5 
0 
3 
6 
4 
2 
6 
4 
2 
2 
7 
2 
3 
2 
5 
4 
3 
3 
5 
3 
3 
4 
3 
4 
3 
3 
4 
3 
4 
3 
4 
3 
4 
3 
4 
3 
4 
26 
52 
35 
27 
18-57 
37-14 
25.00 
19.29 
Mean quartile 
po'sition 
2.2-85 
2.214 
2.428 
2.428 
2.571 
2.428 
2.428 
2-571 
Gra 
2.571 
nd tota 
2-571 
l1 140 
<T 
.590 .861 
.905 
.981 
.981 1.051 
1. 117 
1. 117 
1. 117 
1. 117 
I 
I 
