GKA] X-S< IEGHUM EXPERIM E N TS IN K LA SOMA. 
53 
Table 22. — Z>« plants and number of plants to the cere 
eriments with grain sorghums at the Woodward Field Station during the 
5-year period from 1911 to 1921, 
Rate. 
No. 1 
Mo. 2 
No. 3 
No. 4 
Distance (inches i 
between— 
Rows. 
Plants 
per acre. 
Rate. 
Plants. 
6 
3 
12 
12,000 
6 
_ 
18 
3 
Distance (inches) 
betw 
een— 
Plants 
Rows. 
Plants. 
ZS 
9 
w 
24 
6,000 
88 
12 
6,000 
41 
30 
4,800 
B8 
15 
DWARF YELLOW MILO. 
FIRST DIVISION. ROWS 44 INCHES APART. 
The agronomic data for the Dwarf Yellow milo in the first division 
of the spacing experiments are presented in Table 23. This table 
shows that in 1917 and 1918 the 6-inch plat was too thin, the space 
between plants exceeding the desired 6 inches by 3.9 inches in 1917 
and by 2.04 inches in 1918. During the last three years rate 1 has 
practically averaged one plant to each 6 inches of row space. The 
plats for rate 3. one plant to each 12 inches, were also too thin in 
1917 and 1918. but during the last three years this rate has been 
verv close to one plant to each 12 inches. Rate 5, one plant to each 
18 inches, was too thin during 1917 and 1918, but in 1919, 1920, and 
1921 it has been close to the 18-inch space desired. Rate 7, one plant 
to each 24 inches, and rate 9. one plant to each 30 inches, have been 
close to the desired spacings in each of the five years. 
Because of the tendency of Dwarf Yellow milo to produce suckers, 
the average stalk space is relatively much less for the thin rates than 
the plant space. The average plant space for rate 1 during the 
five years was 7.20 inches and that for rate 9 was 29.54 inches, w r hile 
the average stalk spaces in the same period w r ere 5.14 and 9.39 inches 
for rates 1 and 9, respectively. Though there are several exceptions, 
in general the number of suckers per plant increases with the dis- 
tance between the plants. The maximum number of suckers pro- 
duced by Dwarf Yellow milo at the Woodward Field Station has 
been approximately 2.5 suckers per plant. In 1920 and 1921 rate 7, 
one plant to each 24 inches, produced more suckers per plant than 
rate 9. During the other years rate 9 produced the greatest number 
of suckers per plant, as was to be expected. 
The percentage of erect heads averaged more than 90 per cent for 
all spacings in 1918, 1919, and 1920. In 1918 the milo made boot 
and headed during the dry period early in August. As a result, 
growth was slow and no pendent heads resulted. In both 1919 and 
1920 the thinner rates had slightly more pendent heads than the 
thicker rates. In 1917 the percentage of erect heads averaged 
about 50 per cent for the five rates, the large number of pendent 
heads no doubt being due to the boots and heads forming during 
and after the period of good rains in the latter part of August. In 
1921 the percentage of erect heads was highest in the thickest rate 
and decreased regularly with the wider spacing. This was due to 
good moisture and growing conditions at the time of heading. 
