June 14, 1924 
Spacing Experiments with Acala Cotton 
1085 
Table I.— Yields of the first , second, and total pickings hy sections of rows , total 
length of rows, and four-row block totals, cotton spacing experiment, Coachella 
Valley , Calif., 1922 a 
Spacing 
How 
No. 
Section A 100 feet 
Section B 125 feet 
Section C 150 feet 
Total length of row 
Yields 
Yields 
Yields 
Yields 
First 
picking 
Second 
picking ! 
Total 
pounds 
First 
picking 
Second 
picking 
Total 
pounds 
First 
picking 
Second 
picking 
Total 
pounds 
I 
Firstj 
picking 
- ! 
Second j 
picking j 
■ -1 
Total I 
pounds 1 
2-inch. 
Guard 
(12.5 
1.3 
13.8 
19.7 
2.1 
21.8 
23.5 
2.2 
25.7 
55.7 
5.7 
61.5 
\13.7 
2.8 
16.6 
19.2 
3.3 
22.6 
24.7 
3.6 
28.3 
57.7 
9.8 
67.6 
[1 . 
12.0 
3.5 
15.5 
16.7 
3.7 
20.5 
22.0 
4.5 
26.5 
50.7 
11.7 
62.5 
2_ 
12.7 
3.0 
15.7 
17.0 
1.6 
18.6 
22.5 
6.5 
29.0 
52.2 
11.1 
63.3 
3. 
13.5 
2.5 
16.0 
18.0 
2.1 
20.1 
23.2 
5.3 
28.6 
54.7 
10.0 
64.7 
inch. 
4. 
13.5 
3.5 
17.0 
18.5 
1.8 
20.3 
23.0 
5.6 
28.6 
55.0 
11.0 
66.0 
Total. 
51.7 
12.5 
64.2 
70.2 
9.2 
79.5 
90.7 
21.9 
112.7 
212.6 
43.8 
256.5 
fl. 
13.2 
3.0 
16.2 
17.5 
.8 
18.3 
21.2 
4.6 
25.8 
52.0 
8.5 
60.5 
. 
2. 
13.7 
3.6 
17.3 
16.2 
1.2 
17.5 
23.0 
3.1 
26.1 
53.0 
8.0 
61.0 
TJ W.L- "Mii O n 
3. 
10.0 
3.2 
13.2 
16.7 
1.2 
18.0 
25.2 
3.6 
28.8 
52.0 
8.1 
60.1 
A3IUCJ&. 1NO* 0“ 
inch. 
4_ 
13.7 
2.6 
16.3 
18.7 
2.2 
21.0 
22.5 
4.3 
26.8 
55.0 
9.2 
64.2 
Total. 
50.6 
12.4 
63.0 
69.1 
5.4 
74.8 
91.9 
15.6 
107.5 
212.0 
33.8 
245.8 
fl. 
14.5 
3.0 
17.5 
20.2 
2.3 
22.6 
24.0 
3.3 
27.3 
58.7 
8.7 
67.5 
2. 
13.2 
2.6 
15.8 
17.5 
2.2 
19.7 
25.7 
3.2 
29.0 
56. 5 
8.1 
64.6 
3_._ 
12.5 
2.2 
14.7 
14.0 
.6 
14.6 
24.2 
3.2 
27.5 
50.7 
6.1 
56.8 
X>iOGK INO. o f 
inch. 
4. 
12.5 
2.0 
14.5 
18.0 
.7 
18.7 
24.2 
2.7 
27.0 
54.7 
5.5 
60.2 
Total. 
52.7 
9.8 
62.5 
69.7 
5.8 
75.6 
98.1 
12.4 
110.8 
220.6 
28.4 
249.1 
fl. 
11.5 
2.2 
13.7 
15. 5 
.5 
16.0 
23.5 
2.7 
26.2 | 
50.5 
5.5 
56.0 
2. 
13.7 
3.1 
16.8 
15.7 
1.3 
17.1 
23.7 
5.0 
28.7 
53.2 
9.5 
62.7 
3_ 
14.5 
3.7 
18.2 
16.5 
1.8 
18.3 
25.5 
6.6 
32.1 
56.5 
12.2 
68.7 
Dlublv. J.\U* 
inch. 
4. 
13.2 
3.3 
16.5 
16.0 
2.1 
18.1 
19.5 
4.7 
24.2 
48.7 
10.3 
59.1 
Total. 
52.9 
12.3 
65.2 
63.7 
5.7 
69.5 
92.2 
19.0 
111.2 
208.9 
37.5 
246. 5 
fl. 
13.0 
3.1 
16.1 
17.2 
2.7 
20.0 
22.5 
6.5 
29.0 | 
52.7 
12.3 
65.1 
2_ 
14.5 
2.7 
17.2 
16.0 
3.8 
19.8 
22.0 
8.0 
30.0 j 
52.5 
14.6 
67.1 
3. 
11.7 
2.7 
14.4 
16.5 
3.8 
20.3 
19.5 
6.2 
25.7 
47.7 
12.8 
60.6 
XHOCK i\ 0. 0 f 
inch. 
4_ 
13.2 
3.5 
16.7 
15.7 
4.0 
19.7 
15.7 
8.3 
24.1 | 
44.7 
15.8 
60.6 
Total. 
52.4 
12.0 
64.4 
65.4 
14.3 
79.8 
79.7 
29.0 
108.8 | 
197.6 
55.5 
253.1 
/12.0 
4.7 
16.7 
17.2 
5.8 
23.1 
16.2 
8.0 
24.2 | 
45.5 
18.6 
64.1 
Guard 
\13.2 
3.0 
16.2 
19.5 
5.5 
25.0 
19.5 
10.8 
30.3 i 
1 
52.2 
19.3 
71.6 
o The weights were recorded to hundredths of pounds, but the yields are given in tenths of pounds. In 
computing the total yield hundredths of pounds were included if they equaled or exceeded a tenth of a 
pound; hence the total row yields in some instances are slightly greater than the sum of the three sections. 
SPACING EXPERIMENT IN 1923 
In the season of 1923, another spacing experiment was conducted with Acala 
cotton, the same plant spacings being compared. The experimental material 
was planted on April 23, and located on approximately the same plot of land 
which was used in 1922. 
The 1923 experiment had additional 6 and 12-inch blocks and consisted of 32 
rows 3J^ feet apart and 370.5 feet long. Acala cotton was planted on each 
side of the test, which protected the outer blocks from “ outside row effects.” 
The plants were thinned between May 25 and June 5, the 2-inch spaced blocks 
being thinned first, when the plants were 8 to 10 inches tall and had about eight 
true leaves. Tomosis was very prevalent at the time of thinning and quite a 
number of plants having aborted terminal buds were pulled out in the thinning 
process where possible. 
