60 
BULLETIX 1260, TJ. S. DEPARTMENT OF AGRICULTURE. 
the first date of Sumac. In 1915 a fair second growth was made on 
the April 1 and April 15 plats of Freed, feterita, and milo, but this^ 
second crop was not harvested because the sorghum midge prevented 
the formation of seed. The midge was also responsible that year for 
the failure of the seed crop on the June 1 and later seedings of Sumac, 
the June 15 and July 1 seedings of kafir, milo, and Freed, and the 
July 1 seeding of feterita. In the other years of the experiments and 
in subsequent years there has often been a drought after the earliest 
plats were mature but in time to reduce the grain yields of later 
varieties to some extent. 
The experiments for which yields are given in detail cover only the 
five years, 1913 to 1917, inclusive, but in considering the results 
reference is made to some interesting preliminary experiments with 
kafir and milo conducted during 1907, 1908, and 1909. Data for 
1913 to 1917, inclusive, as given in Table 15 show the effect of seeding 
at different dates on the yields of forage and grain, the average height 
of the plants, and the length of time required by the variety to mature. 
mg 
in- 
Table 15. — Agronomic data regarding sorghum varieties grown in date-of- 
experiments at Chillicothe, Tex., in the 5-year period from 1913 to 1917, 
elusive. 
[Yields marked with a star (*) are interpolated, seeding being prevented by weather conditions 
Yields per acre 
Avei 
t 
age. 
Variety and 
1913 
1914 
1915 
1916 
1917 
Average. 
approximate 
date of 
seeding. 
bo 
a 
6 
m 
a 
© 
c 
© 
bo 

© 
bO 
a 
© 
if. 
d 
3 
= 
03 
05 
03 
03 
03 
^ 
bo 
(H 
"3 
"3 
'3 
u- 
'3 
'3 
■— 
'o3 
o 
u 
O 
3 
O 
-— 
3 
o 
fe 
O 
fe 
O 
h 
O 
fr 
O 
E^ 
a 
pq 
o 
w 
X 
Sumac: 
Tons. 
Bush. 
Tons. 
Bush. 
Tons. 
Bush. 
Tons. 
Bush . 
Tons. 
Bush. 
Tons. 
Bush. 
Inches. Days. 
April l—~ 
2.18 

8.63 
7.3 
4.53 
18.2 
2.16 

1.94 
1.3 
3.89 
5.4 
65 
164 
April 15— 
1.55 

5.90 
33.6 
6.18 
17.9 
2.30 

2.02 
1.9 
3.59 
10.7 
69 
163 
May l 
.95 

7.95 
35.4 
6.78 
19.6 
2.81 

2.26 
1.9 
4.15 
11.4 
71 
150 
May lo-_- 
.72 

*7.61 
•31.3 
6.15 
19.6 
3.47 

3.09 
26 
4.21 
10.7 
68 
139 
June 1 
2.89 

*8.90 
*36.9 
8.18 

3.93 

2.39 
2.8 
5.26 
7.9 
65 
130 
June 15 
1.55 

7. 55 
20.0 
9.68 

3.42 

1.87 
3.4 
4.81 
4.7 
72 
122 
July 1 
*1. 23 

7.70 
32.5 
8.63 



2.73 
5.9 
4.06 
7.7 
83 
108 
Freed sor- 
ghum: 
April 1 
.63 
3.2 
2.48 
11.3 
.95 
13.9 
.84 
9.1 
.43 
3.4 
1.07 
8.2 
56 
116 
April 15— 
.80 
6.1 
2.73 
15.5 
1.43 
21.4 
1.00 
12.1 
.78 
5.0 
1.35 
12.0 
57 
104 
May 1 
.82 
6.3 
4.05 
18.4 
1.98 
26.8 
1.30 
17.0 
.85 
7.1 
1.80 
15.1 
58 
93 
May 15- — 
.85 
5.0 
*3.82 
*26.9 
2.25 
30.5 
1.18 
15.0 
.75 
5.5 
1.77 
16.6 
56 
89 
June 1 
1.00 
5.0 
*4.93 
*24.7 
3.00 
25.7 
1.52 
15.6 
1.13 
12.4 
2.32 
16.7 
60 
80 
June 15 
.90 
1.6 
3.58 
11.3 
2.33 

1.39 
10.8 
.84 
10.1 
1.81 
6.8 
62 
74 
Julyl 
Feterita: 
April 1--.- 
*.67 

1.88 
14.8 
2.75 

.82 
5.4 
1.02 
5.6 
1.43 
5.2 
64 
83 
1.08 
14.8 
3.73 
35.9 
1.23 
11.4 
.97 
13.5 
1.18 
10.2 
1.64 
17.2 
57 
123 
April 15— 
1.09 
12.7 
5.09 
44.8 
1.68 
14.3 
1.23 
17.3 
. 57 
3.2 
1.93 
18.5 
55 
113 
May 1 
1.27 
13.6 
5.03 
20.0 
2.28 
29.3 
1.38 
18.8 
.82 
7.4 
2.16 
17.8 
52 
100 
May 15 
1.28 
3.9 
*5.11 
*33.3 
3.30 
33.6 
1.18 
15.2 
.72 
7.9 
2.32 
18.8 
51 
93 
June 1 
1.24 

*5.48 
*33.3 
3.28 
30.4 
1.65 
22.3 
.90 
8.3 
2.51 
IS. 9 
52 
93 
June 15 
1.64 

3.65 
26.6 
4.44 
37.0 
1.46 
19.5 
1.44 
12.4 
2.53 
19.1 
57 
99 
July 1 
*1.06 

4.30 
48.4 
3.00 



1.63 
11.3 
2.00 
11.9 
64 
92 
Dwarf Yellow 
milo: 
April 1 
April 15— 
.93 
10.9 
4.18 
28.2 
1.18 
17.1 
1.14 
16.5 
.40 
1.8 
1.57 
14.9 
38 
126 
1.22 
11.6 
3.53 
17.7 
1.45 
19.8 
.98 
12.7 
.59 
2.8 
1.55 
12.9 
39 
113 
May 1 
1.00 
8.4 
5.45 
35.7 
2.33 
19.8 
1.24 
11.6 
.51 
0.8 
2.11 
15.3 
40 
116 
May 15--- 
1.05 
1.6 
*5. 59 
*37.7 
3.65 
28.4 
1.12 
7.6 
1.03 
6.6 
2.49 
16.4 
40 
103 
June 1 
1.02 

*6.00 
*29.3 
3.88 
39.3 
1.34 

1.44 
6.7 
2.74 
15.1 
42 
108 
June 15 
1.55 

5.45 
47.0 
5.23 

1.09 

1.41 
3.7 
2.95 
10.1 
45 
109 
Julyl 
*1. 13 

5.55 
55.0 
3.58 



1.61 
7.3 
2.37 
12.5 
53 
99 
Blackhull 
kafir: 
April 1 
1.66 

4.63 
16.1 
2.70 
32.1 
1.61 
6.3 
1.71 
8.7 
2.46 
126 
49 
142 
April 15— 
1.88 

3.30 
14.8 
3.23 
38.0 
1.65 
3.4 
1.74 
6.2 
2.36 
12 5 
47 
137 
May 1 
1.89 

5.28 
47.1 
2.38 
25.9 
1.79 

1.56 
4.5 
2.58 
15.5 
51 
137 
May 15- — 
1.90 

*5. 26 
♦47.0 
4.28 
39.8 
1.95 

1.31 
0.9 
2.94 
17.5 
49 
128 
June 1 
2.16 

*5.45 
*56.8 
*3.99 
*37. 2 
2.28 

2.27 
8.4 
3.23 
20.5 
44 
123 
June 15 
2.57 

5.33 
55.5 
4.83 

2.48 

1.06 
4.7 
3.25 
12 
57 
122 
July 1 
*2. 10 

6.07 
47.9 
4.83 



1.89 
7. 1 
2.98 
11.0 
66 
112 
