24 BULLETIN 1284, IT, S. DEPARTMENT OF AGRICULTURE 
Three strains of Manchu kaoliang were grown at Columbia, a 
total of 698 plants being obtained, of which 94, or 13.5 per cent, were 
infected. Manchu (C. I. No. 171) was grown four years at Man- 
hattan and Amarillo, the average infection being 15.6 per cent and 
17.1 per cent, respectively. At Rosslyn 6.9 per cent of the plants 
were infected and at Brooklyn 32.3 per cent. Manchu kaoliang 
(C. I. No. 328-1) was also grown four years at Manhattan and 
Amarillo, with an average infection of 21.9 per cent at the former 
station and 8.8 per cent at the latter. At Rosslyn 2.9 per cent of 
the plants were infected and at Brooklyn 56.3 per cent, the number 
of plants at both stations being small. 
Valley kaoliang (C. I. No. 309) was grown only at Brooklyn, where 
93 out of 151 plants, or 61.6 per cent, were infected. 
Shantung Dwarf kaoliang 9 (Mo. No. 22) was grown at Columbia 
in 1915, and only one infected plant out of a total of 276 was recorded: 
at Brooklyn only four plants were obtained, none of which was 
infected. Shantung Dwarf kaoliang (C. I. No. 293) was grown five 
years at Manhattan and four at Amarillo. In a total of 1,495 plants 
grown at the two stations only one infected plant was recorded. 
The same strain at Rosslyn and Brooklyn gave no infected plants. 
Possibly the infected plants at Columbia and Manhattan were not 
actually of this variety; in any case, Shantung Dwarf is very resistant 
to covered kernel smut. 
Two strains of Barchet blackhull kaoliang were grown at Columbia. 
Missouri No. 20 was grown in 1915, and 31 per cent of the plants 
were infected. Missouri No. 61 was grown in 1917 and 1918. In 
1917, 28.6 per cent of the plants were infected, but in 1918 negative 
results were obtained. The same strain was grown at Brooklyn, 
where 44.4 per cent of the plants were infected. Barchet kaoliang 
(C. I. No. 310) was grown at Manhattan three years, where an 
average infection of 31.9 per cent was obtained, and at Amarillo 
four years, the average infection being 30.2 per cent. At Rosslyn 
36.5 per cent of the plants were infected, while at Brooklyn only 5.3 
per cent showed smut. 
Mukden white kaoliang (C. I. No. 190) was grown three years at 
both Manhattan and Amarillo, with an average of 8.4 per cent 
infection at the former station and 10.6 per cent at the latter. 
Brown kaoliang (Mo. No. 40) was grown three years at Columbia, 
with an average infection of 10.6 per cent. Chusan kaoliang (C. I. 
No. 324) was grown during four years at Manhattan and Amarillo, 
with an average infection of 6.2 per cent and 4.4 per cent, respectively; 
at Rosslyn 6.5 per cent of the plants were infected and at Brooklyn 
47.1 per cent. Choonchun kaoliang (C. I. No. 413) also was grown 
four years at Manhattan and Amarillo, with average infections of 
1.5 per cent and 1.8 per cent, respectively; at Rosslyn 1.6 per cent 
infection was obtained and at Brooklyn 36.4 per cent. Parker 
kaoliang (C. I. No. 424) showed a 4-year average infection of 3.5 
per cent at Manhattan and 6 per cent at Amarillo; at Rosslyn, 2.4 
per cent of the plants were infected. Brown kaoliang (S. P. I. No. 
38463) was grown at Brooklyn, but only 14 plants were obtained, 
none of which was infected. 
9 This so-called dwarf kaoliang (C. I. No. 293 and S. P. I. 22010) is different from the rest of the kaoliang 
group, according to c. R. Ball, and probably represents either a selection or a hybrid from one of tho near 
durras from India. 
