GRAIN-SORGHUM EXPERIMENTS IX OKLAHOMA. 29 
White African kafir C. I. No. 566 have been grown separately 
there has been greater difference in height between them than 
between the Sunrise and Dawn kafirs. The ratio between the 
average heights of the dwarf and tall types of White kafir C. I. No. 
for six years is 1 to 1.73. while that between Dawn and Sunrise 
kafir for the same period is 1 to 1.47. The average height of the 
dwarf tvpe was 3.7 feet, while the tall type averaged 6.4 feet for the 
six years. 
In vield of grain. White kafir C. I. Xo. 370' has been low. In 
1916. however, its earliness enabled it to outyield Sunrise and Dawn 
kafirs bv a narrow margin. For the 8-year period it has averaged 
17.5 bushels per acre. The total crop weight has also been Lav. 
C. I. No. 566 has averaged practically 20 bushels of grain per acre for 
the eight years. The tall selection has shown some promise as a 
grain producer during the last few years. It is possible that further 
selection may result in a high-yielding kafir. though its height and 
relative lateness are against it. 
RED KAFIR. 
Red kafir can be readily distinguished from other members of the 
kafir group by the color of the seed, which is brownish red. and by 
its head being longer and more slender than those of other kafirs, 
The color of glumes of the Red kafir now grown in the varietal plat 
is very dark red. Red kafir is grown quite extensively in some com- 
munities of Oklahoma, where it is preferred to other varieties. 
Two selections of Red kafir were included in these experiments 
during the first three years. As there was no apparent difference 
between the two selections, one was then discarded, while the other 
has been carried in the varietal plats for the full eight years. The 
experimental data for Red kafir are given in Table 9. 
The stands obtained with Red kafir have been comparable with 
those of other kafirs. Red kafir has been less inclined to sucker than 
any other kafir grown at this station, the average number of suckers 
produced in the eight years having been 19 for every 100 plants. 
In length of total growing period. Red kafir is comparable with the 
late-maturing Blackhull kafir (C. I. Xo. 71). During the last 5 
years of these experiments. Red kafir has matured on the average 
in 12S days, while the Blackhull has required 130 days. In the full 
8-year period Red kafir has averaged 7 days later in maturing than 
Sunrise kafir. 
In height Red kafir 1 has varied from 3.3 feet in 1916 to 5.8 feet in 
1915. the average height being 4.5 feet. During the last five years it 
has averaged about 2 inches taller than Blackhull kafir (C. I. No. 71 . 
Red kafir has made an average yield of 20.8 bushels of grain and 
practically 5.000 pounds of total crop per acre in the 8-year period. 
This is 3 bushels per acre less grain and 500 pounds less total crop 
than Dawn kafir. 
PINK KAFIR. 
Pink kafir (C. I. No. 432 . which is grown extensively in the 
vicinity of Hays. Kans.. has been included in these experiments for 
but one year, hence no comparisons of any value can be made at this 
time. The data for the one crop which has been grown are given 
in Table 9. The indications from the data for that year are that 
