CRAZY-TOP DISORDER OF COTTON 9 
duced a good crop of normal bolls before the disease was manifested 
in the abnormal top growth of these plants. The actual number of 
bolls produced by each of the plants in Figure 4 is given in Table 1. 
The average number of bolls per plant is seen to be much greater 
in each of the outside rows than in any of the inner rows. The bolls in 
the outer rows were also much larger than those in the inner rows, the 
latter generally being extremely small and deformed. 
Table 1. — Number of bolls produced by each of the cotton plants shown in Figure 4 
[Condition of plants indicated by N (normal) and D (diseased with crazy-top)] 
Condition of plant in the row, showing number of bolls for each- 
Oraer of plants in row 
North side of 
field 
South side of field 
Eowl 
Row 2 
Row 3 
Row 4 
Row 5 
Row 4 
Row 3 
Row 2 
Rowl 
1 
N-37 
N-35 
N-28 
N-62 
X-23 
N-77 
N-27 
N-12 
N-26 
N- 9 
N-22 
N-38 
N-39 
N-12 
N-40 
N-46 
N-33 
N- 5 
N-43 
N-65 
N-56 
N-13 
D-39 
N-ll 
N-28 
N-26 
N-30 
D-27 
N-19 
D- 
N-22 
N-21 
N-ll 
N-20 
N-31 
N- 
D-13 
D-20 
N-29 
D- 2 
D-4 
D- 4 
D-33 
D- 9 
N-ll 
D- 9 
N-13 
N-25 
N-14 
N-24 
D-18 
D-14 
D-13 
D-12 
D- 2 
N-10 
N- 6 
D- 2 
D- 
D- 1 
D- 
D- 2 
D- 3 
D- 1 
D- 5 
D- 
D- 2 
D- 
D- 
D- 
D- 
D- 
D- 
D- 
D-0 
D- 1 
D- 
D- 
D- 
D- 
D- 5 
D- 7 
D- 1 
D- 
D- 2 
D- 1 
D- 
N- 7 
D- 6 
D- 1 
D- 3 
D- 
D- 
D- 1 
D- 3 
D- 7 
D-13 
N- G 
D- 1 
D- 2 
N- 6 
D- 1 
D- 
D- 1 
D- 
D- 7 
N-ll 
D- 
D- 
N- 7 
D- 
D- 
D- 
D- 
D- 2 
D- 1 
D- 
D- 
D- 2 
D- 3 
D- 2 
N- 9 
D-12 
N- 8 
N- 8 
D- 3 
D- 2 
D- 1 
D- 3 
D- 
D- 2 
D- 1 
D- 2 
D- 
D- 
D- 3 
D- 
D- 2 
D- 3 
D- 1 
D- 1 
D- 
D- 
N-14 
N- S 
D- 1 
D- 1 
N-19 
N-29 
N- 8 
D- 
D- 1 
D- 7 
D-10 
D- 7 
D- 3 
D- 3 
D- 6 
D- 2 
D-0 
D-4 
D- 2 
D- 3 
D-0 
D- 4 
D-4 
D- 2 
D- 
D- 5 
D-7 
D- 
D- 7 
D- 2 
D- 4 
D-12 
D- 5 
D- 5 
D-7 
D- 3 
D- 
D- 
D- 
D- 
D- 
D- 
D- 
D- 
D- 2 
D- 8 
D- 5 
D-10 
D- 1 
D- 
N- 7 
D-l 
D- 1 
D- 7 
D- 7 
D-ll 
D-12 
D- 2 
D- 
D-12 
D- 5 
D- 4 
D- 7 
N- 8 
N-ll 
D-ll 
D-l 
D- 4 
D- 6 
D- 1 
D- 1 
D- 
D- 1 
D- 4 
D- 2 
D- 4 
D- 
D-12 
N-14 
D-l 6 
D- 4 
D-10 
D- 6 
D- 6 
D-ll 
D-12 
D- 9 
D- 7 
D-ll 
D-ll 
D- 8 
N-15 
D- 9 
D- 9 
N-26 
N-17 
D- 2 
D- 7 
D- 4 
D-12 
D- 5 
D- 
D-10 
D-16 
D-19 
D-13 
N-47 
N-20 s 
2. 
N-19' 
3 
D- 1 
4 
N-16 
5.. 
6.. 
D- 8 
D- 6 
7 
8 
9... 
10. 
11. 
12 . 
13 
14.... 
15 
16. 
17. 
18. 
19. 
N-40 
D-20' 
N-lfr 
D-10 
N-12 
D-26 
D- 5 
D-10 
N-20 
N-13: 
N-26 
N-15 
N-25 
20. 
21 
22 
N-10 
N-24 
N-25 
23 
N-26 
24 
25 

N-10 
N-15 
26... 
27 
D-13 
D-29 
28 
29.... 
30 
D-17 
D-12 
D- 3 
31 
N- 7 
32 
N-10 
33 
N-27 
34 
D-32 
35 
N-39 
36- 
N-18 
37 _„ 
N-18 
38 
N-57 
39 i 
40 - 
41 
Total bolls 
735 
35.0 
508 
17.5 
91 
4.6 
82 
2.3 
113 
2.8 
171 
4.3 
168 
4.9 
336 
11.6 
700" 
Average 
18. 4, 
In fields with steep gradients, several cases were noted where pairs 
of rows or strips of several rows were conspicuous by having nearly all 
plants normal and productive for the entire length of the field, whereas 
rows on either side showed nearly all plants aberrant and producing 
only a few bolls, most of which were abnormal. The writers could 
find no more satisfactory explanation for this occurrence than that 
offered by the growers, namely that a chronic leak or break in a "sub- 
lateral" or distributing ditch allowed this strip to absorb water for a 
longer period than the other rows. 
30227—27 2 
