SORGHUM EXPERIMENTS OX THE GREAT PLAINS. 
25 
tabulated data it is well to refer to the climatic data in Table 1, since 
an explanation will be found there of many of the seeming inconsis- 
tencies in the yields, especially the seed yields. In 1914, for example, 
early varieties, such as feterita, Dwarf milo, and Freed, produced 
two crops of seed, the second harvest even larger that the first. (Figs. 
8 and 9.) Later varieties, such as the kafirs, on the other hand, pro- 
duced only one crop of heads and consequently smaller yields. 
Table 4 also presents a summary of the results with the more im- 
portant varieties under test. For the purpose of more exact compari- 
sons of the different varieties, the relative yields are given as percent- 
ages of the yields of a check. Sumac was used as a check for the 
sorgos and Dwarf kafir for the grain sorghums. 
Fig. 
second crop of feterita at Chillicothe, Tex., grown from the stubble of the 
produced the crop shown in Figure 8. Photographed October 15, 1914. 
lants that 
Table 4. — Agronomic data regarding sorghum varieties grown at Chillicothe, Tex., 
for one or more seasons in the 9-year period from 1913 to 1921, inclusive. 
Serial No. 
a 
s 
a 
o 
Dimensions 
(inches) . 
Yields per acre. 
Variety. 
Row space. 
1 
C3 
Air-dry Threshed 
forage. seed. 
•s 
CO 
u 
bJj 
o 
i 
a 

'? 
« 
ii. 
2 
13 — 
c 03 a 
"3 
3 G 3 
m 
o 
■— 
3 
>* 
o 
Pi 
Ul 
W 
p* 
H P4 
pq 
Sorgos: 
1914 
89 
4.0 
62 
6,850 
3.43 1,500 
26.8 
1915 
81 
7.6 
4.6 
59 4,650 
2.33 1,470 
26.3 
Dakota Amber 
F. C. 1.6586 
1916 
1917 
83 
85 
6.7 
6.0 
5.3 
3.5 
57 2, 150 1. 08 790 
46 2,060 1.03 260 
14.1 
4.6 
1918 
98 
8.2 
4.9 
50 1,888 .94 355! 6.3 
11919 
83 
7.8 
5.5 
65 4, 778 2. 39 1, 317 23. 5 
Average.-. ... _. . 
87 
6.7 
4.8 
57 3,729 1.87 949 16.9 
IS. P.I. 17695 
/1913 
\1914 
109 
15.0 
61 1.950 .98 125 
2.2 
Black Amber . 
92 
4.7 
66 9, 100' 4. 55 570 
10.2 
Is. P. 1.36935 

i 
1916 
83 
6.3 
5.4 
62 2,445 1.22 920 
16.4 
Average 
95 
8.7 
63 4,498 2.25 538 
9.6 
