SORGHUM SMUTS AND VARIETAL RESISTANCE 
15 
be introduced later into various other parts of the country. As early 
as 1905 it was grown in Texas under the name " California wheat." 
Other common names are California rice corn, California golden sor- 
?hum, Egyptian rice, Egyptian wheat, Mexican wheat, and Mexican 
)esert wheat or rice corn. These names are all somewhat misleading 
and have been used for purposes of exploitation. Apparently only 
one variety of shallu has been grown in the United States. It is of 
little value as compared with the other sorghums. 
Six different lots of shallu were grown at Columbia, Mo. The 
total number of plants obtained was 1,235, of which 342, or 27.6 per 
cent, were infected. Shallu (C. I. No. 85) was grown four years at 
Manhattan and three years at Amarillo; at Manhattan, 23.2 per 
cent of the plants were infected, and at Amarillo, 19 per cent. At 
Brooklyn 144 plants of three different lots were grown, 55, or 38.1 per 
cent, being infected. At Rosslyn 32 out of 90 plants of two lots 
grown were infected, or a total-of 35.5 per cent. The detailed data 
are shown in Table 1. 
Table 1. — Results of inoculation experiments with spores of covered kernel smut on 
strains of shallu at five stations in one or more of the seven years from 1915 to 
1921, inclusive 
Strain and 
station 
Number of plants grown 
Percentage of plants infected 
1915 
1916 1917 
1918 
1919 
1920 
1921 
1915 
1916 
1917 
1918 
1919 
1920 
1921 
Aver- 
age 
Mo. No. 5: 
341 
235 
192 
29.0 
20.0 
22.9 
29.0 
Mo. No. 10: 
Columbia. . 
20.0 
Mo. No 15: 
Columbia 
22.9 
Mo. No. 46: 
113 
63 
94 
84 
1 
112 
52.2 
71.4 
51.1 



40.0 
Mo. No. 62: 
50.5 
Mo. No. 76: 

Rosslyn 
65 
32.3 
28.6 
32.3 
Mo. No. 206: 
14 
28.6 
C.I. No. 85: 
91 
18 
53 
2 
17.6 
16.7 
35.8 

23.2 
Brooklyn 
94 
39.4 
38.9 
39.4 
61 
239 
137 
9.8 
18.0 

24.8 
"44." 6" 
19.0 
Rosslyn. _. 
25 
44.0 
Agrost. No. 2650: 
Brooklyn. 
36 
38.9 
In these experiments shallu was very susceptible to covered kernel 
smut. Its freedom from smut in India may be due to environmental 
conditions or to varieties which differ in their susceptibility from the 
one introduced into the United States. 
RESULTS WITH SORGOS AND GRASS SORGHUMS 
Apparently the first variety of sorgo, or sweet sorghum, to reach 
the United States came from China by way of France (3). In 1851, 
seed of a variety of sorgo was sent to France from the island of 
Tsungming. Only one seed grew, producing a plant very similar to 
some of our forms of Amber sorgo. Most of our strains of Black 
