56 
BULLETIN 1175, U. S. DEPARTMENT OF AGRICULTURE. 
Table 25. — Data in On spacing experiments with Dwarf Yellow milo grown in rows 
88 inches apart at the Woodward Field Station during the 5-year period from 1917 to 
1921, mclusivt . 
[In the statement of yields of grain yer acre the bushel is rated at 58 pounds.] 
Row- 
Stalks 
per 
plant. 
Total 
Grain Yield- per 
lore. 
Year and rate No. 
Stalks 
headed. 
Erecl 
heads. 
gro.v- 
ing 
period. 
Height. 
in 
total 
crop. 
Plant. 
Stalk. 
crop. Grain - 
1917: 
In s . 
Ins. 
Per cf. 
P.rct. 
Days. 
Fat. 
Per ct. Lbs. Lbs. 
Bush. 
Rate 2 
4.98 
4. 03 
1.24 
91.2 
44.9 
■ 139 
3.5 
22.2 3,769 838 
14.4 
Rate 4 
7.20 
4.77 
1.51 
88. 3 
50.8 
139 
3.5 
21.5 3,656 7ss 
13.6 
Rate 6 
in. 22 
.4.92 
2. 08 
92.0 
45. 2 
139 
3.8 
28. 4 3, 600 
1.024 
17.7 
RateS 
L2.51 
5.00 
2.51 
91.3 
38.1 
139 
3.8 
25. l :;. 431 
872 
15.0 
Rate 10 
1918: 
Rate2 
14.14 
4.96 
2.85 
90.0 
37.9 
139 
3.5 
27.2 
1,053 
18.2 
4. 02 
3.67 
1.10 
51.1 
100.0 
96 
15.0 1,238 1S6 
3.2 
Rate 4 
8. 14 
5.03 
1.62 
81.3 
100.0 
96 
3.0 
S.744 
.523 
9.0 
Rate 6 
11.48 
5.85 
1.96 
100.0 
96 
3.0 
14. 2 2. L38 
304 
5.2 
Rates 
L2.28 
5.99 
2.05 
7(1. 1 
100.0 
96 
3.0 
15. 2 1. 72.5 
263 
4.5 
Rate 10 
1919: 
Rate 2 
L5. 1^ 
5. 47 
2.83 
63.2 
99.8 
96 
2.8 
12.7 1,650 
210 
3.6 
3.04 
2.92 
1.04 
91.1 
99.9 
114 
4.3 
31.5 
5,006 1,575 
27.2 
Rate 4 
.). 79 
4.74 
1.22 
87.7 
99.1 
115 
4.5 
37.1 
3. 1.50 1, 170 
20.2 
Rate 6 
8.97 
6.80 
1.32 
96.1 
84.6 
117 
3.8 
39. 1 
3,600 1,406 
24.2 
Rate8 
11.61 
6.54 
1.78 
98.8 
81.4 
125 
3.8 
36.5 
1,500 1,643 
28.3 
Rate 10 
14.19 
7.17 
1.98 
96.2 
92. 1 
125 
3.5 
35.3 
3,240 1,143 
19.7 
1920: 
Rate 2 
3.06 
2.65 
1.16 
91.9 
99.7 
99 
4.5 
27.1 
6,300 1.710 
29.5 
Rate 4 
6.05 
• 3.11 
1.95 
94.0 
97.3 
108 
4.3 
31.2 
6,356 1,980 
34.1 
Rate6 
9.19 
3.21 
2.74 
94.8 
95. 4 
108 
4.4 
33. 7 
6,244 2,104 
36.3 
Rates 
12. 32 
3.90 
3.14 
98.0 
85.7 
108 
4.6 
34.3 
6,469 2,216 
38.2 
Rate 10 
1921: 
Rate 2 
14. .50 
4.66 
3.11 
95.6 
95.3 
111 
4.3 
33.6 
6. 300 2, 115 
36.5 
" 3.00 
2.91 
1.03 
96.8 
93.8 
106 
5.7 
35.9 
6,806 ! 2,441 
42.1 
Rate 4 
6.03 
3.75 
1.61 
97.0 
51.4 
109 
5.6 
40.2 
6,919 2,779 
47.9 
Rate 6... 
9.00 
1. 57 
1.97 
99.1 
45.4 
109 
5.2 
41.4 
0, 356 3, 633 
45.4 
Rate 8 
12.00 
4.78 
2.51 
98.6 
34.8 
109 
5.2 
42. 9 
6,188 2,655 
45. a 
Rate 10 
15.08 
6.66 
2.26 
98.9 
48.4 
109 
4.^ 
48.0 
4,815 2,313 
39.9 
5-year average, 1917 
to 1921: 
Rate 2 
3.62 
3.24 
1.11 
84.4 
87.7 
111 
4.2 
26.3 
4, 624 1, 350 
23.3 
Rate 4 
6.64 
4.28 
1.58 
89.7 
79.7 
113 
4.2 
32.0 
4. 3(5.5 1, 448 
25.0 
Rate 6 
9.77 
5.07 
2.01 
93.7 
74.1 
114 
4.0 
31.4 
4,388 1,694 
25.8 
Rate 8 
12.14 
5.24 
2.40 
91.4 
68.0 
115 
4.1 
30.8 
4, 463 1, 530 
26.4 
Rate 10 
14.68 
5.78 
2.61 
88.8 
74.7 
116 
3.8 
31.4 
3,975 
1,367 
23.6 
The same correlation between stalks producing heads and yield of 
grain is apparent in the 88-inch as in the 44-inch rows. 
The total crop yield varied from 6,919 pounds for the rate with 
plants spaced 6 inches apart in 1921 to 1,238 pounds for the rate 
with plants spaced 4 inches apart in 1918. These extreme yields of 
total crop also produced the highest and the lowest grain yields,, 
respectively, though this correlation does not obtain throughout the 
years and rates. The yields of total crop and gram are shown in 
Table 25. The annual and average grain yields for the different 
rates of spacing plants for the five years are given in Table 26 for 
convenient comparison. 
In Table 26 the extreme row space per plant for the five spacings 
of Dwarf Yellow milo in rows 88 inches apart is indicated for the 
5-year period from 1917 to 1921, inclusive. Xo one spacing gave the 
highest yield for more than two of the five years. In 1917 the thin- 
nest rate, one plant each 14 inches, made the best grain yield. In 
1918 and 1921 the high grain yields were produced from plats with 
the plants spaced 6 inches apart in the row, while in 1919 and 1920 
the high }4elds were from the 12-inch spacings. The average yields 
from the different spacings show little variation for the 5-year period, 
ranging only between 23.3 and 26.4 bushels. The highest yield was 
