60 
BULLETIN 1175, U. S. DEPARTMENT OF AGRICULTURE. 
FIRST DIVISION, ROWS 44 INCHES APART. 
The data for Sunrise kafir in the spacing experiments with rows 
44 inches apart are shown in Table 28. Five plats were grown each 
year, representing five different rates. The desired spacings for the 
different rates were one plant to each 6, 12, 18, 24, and 30 inches 
in the row. As indicated by the row space per plant, comparable 
stands were obtained in different years for all rates of spacing except 
the thick rates in 1917 and 1918, when the row space exceeded the 
desired spacing by 1.2 and 2.9 inches, respectively. 
The tendency in Sunrise kafir to produce suckers is as great as or 
greater than in Dwarf Yellow milo. The greatest number of suckers 
per plant in Sunrise kafir in these experiments was in 1917 in the thin- 
nest plat, which averaged 3.32 suckers for each plant. The minimum 
number of suckers produced in these experiments was in 1921, when 
the thick plat averaged 0.22 sucker per plant. As was the case with 
Dwarf Yellow milo, the number of suckers generally increases with 
the row space between plants. 
The percentage of headed stalks varies considerably between rates 
for any single year, but the relation between stalks headed and grain 
yield is not as apparent as in similar studies with Dwarf Yellow milo. 
The total crop yields have varied from 9,350 pounds per acre for 
rate 3 (12 inches) in 1917 to 3,825 pounds per acre for rate 1 
(6 inches) in 1918. Total crop yield and grain yield do not show 
close correlation in the spacing experiments with Sunrise kafir. This 
is indicated by the data on the percentage of grain in the total crop, 
which varies greatly in different years and considerably as between 
rates in the same year. Table 29 shows the annual and average grain 
yields from the five plant spacings with Sunrise kafir in rows 44 inches 
apart. 
Table 29. — Yields of Sunrise kafir in rows 44 inches apart in the spacing experiments at 
the Woodward Field Station during the 5-year period from 1917 to 1921 , inclusive. 
Rate 
No. 
1 
3 
•5 
9 
Yields per acre (6G-pound bushels). 
Row space per plant. 
1917 
1918 
1919 1920 
1921 
Aver- 
age. 
6 to 8.9 inches 
29.2 
28.8 
30.0 
28.2 
27.0 
7.8 
9.7 
8.5 
10.7 
10.5 
26.0 32.1 
27. 7 34. 1 
24. 7 33. 9 
26. 2 35. 5 
32. 8 33. 8 
38.1 
37.5 
36.8 
31.4 
28.2 
26.6 
12 to 13 inches 
27.6 
16 to 18 inches 
26.8 
23 to 24.5 inches 
26.4 
29 to 30 inches 
26.5 
It is readily noted from Table 29 that the 5-year averages for the 
five rates vary but little. The highest 5-year average, 27.6 bushels 
per acre, was obtained from rate 3, one plant to each 12 to 13 inches, 
and the lowest average yield, 26.4 bushels, from rate 7, one plant to 
each 24 inches of row space. The difference in yields between 
extremes was but 1.2 bushels per acre, or less than 5 per cent. One 
interesting fact is that rate 3 made the highest 5-year average yield, 
yet in the five years it never made the highest yield in any one year. 
From these results no particular spacing can be recommended for 
Sunrise kafir, though a spacing of one plant to every 12 inches will 
give maximum returns of grain and total crop during a period of 
