28 BULLETIN 1175, U. S. DEPARTMENT OF AGRICULTURE. 
The height of Dawn kafir has varied from 3.3 feet in 1914 to 5.2 
feet in 1915, the average height for the eight years being 4.1 feet. 
The average height of Dawn kafir compared to the average height 
of Sunrise kafir gives a ratio of 1 to 1.44. 
With the exception of 1914, Dawn kafir has been exceeded in 
both total crop and grain yield by Sunrise kafir. For the eight 
years. Dawn kafir has averaged 23.8 bushels per acre, or 2.5 bushels 
less grain and about 1,000 pounds per acre less total crop than 
Sunrise. Dawn kafir is well adapted to Woodward conditions as a 
grain crop to be grown for hand heading in the field, leaving the 
stalks in the field to hold the soil and prevent its blowing. 
WHITE KAFIR. 
White kafir is distinguished from Blackhull kafir in having glumes 
white or pale instead of black. Two strains of White kafir have been 
included in these experiments for the full 8-year period. C. I. No. 370 
was received from the Amarillo Cereal Field Station, where it had 
been grown for a number of years, while C. I. Xo. 566, recorded as 
White African kafir, was received from D. P. Marum, of Woodward. 
Okla., who obtained it by direct importation from Africa. This 
latter lot was grown as a single strain in 1914 and 1915, but in 1915 
it was observed that there were two distinct types of plants in the 
plat, tall and dwarf. Head selections were made from plants of each 
type and sown in separate plats in 1916. The tall and dwarf types 
came true, and the two types have since been grown in separate 
plats. The dwarf type is earlier than the tall, but has poor exsertion 
and does not yield as much grain as the tall selection. Plats of these 
two selections are shown in Plate III, Figure 2. The agronomic 
data obtained from the White kafirs are shown in Table 9. 
The row space per plant for C. I. Xo. 370 has varied from 14.3 
inches in 1920 to 8.4 inches in 1916, with an average of 11.3 inches for 
the eight years. The stalk space has averaged 9.7 inches for the 
eight years. Compared with the Blackhull, Sunrise, and Dawn 
kafirs, this selection of White kafir does not sucker extensively, the 
average for the 8-year period showing 21 suckers for each 100 plants. 
Considering an average of the two types of C. I. Xo. 566, the row space 
per plant was 18.7 inches in 1914 and 8.8 inches in 1916, the 8-year 
average being 12.4 inches of row space for each plant. The stalk 
space for the eight years has averaged 9.7 inches, the same as for 
C. I. Xo. 370. Suckering has been slightly greater for C. I. Xo. 566 
than for the other White kafir, the average number of suckers being 
29 per 100 plants. 
The White kafir (C. I. No. 370) matures earlier than any of the 
other kafirs in the varietal experiment. The vegetative period has 
varied from 58 days in 1916 to 104 days in 1917. with an 8-year 
average of 76 days. The fruiting period has varied from 30 to 46 
day- in 1918 and 1917, respectively, with an average of 37 days. 
The average number of days in the total growing period is 113, or 
5 days less than for Sunrise kafir. C. I. No. 566 is not as early as 
C. I. No. 370, the average total growing period for the two types 
of C. I. Xo. 566 being 124 days, or 11 days more than for C. I. Xo. 370. 
In height of plants the White kafir (C. I. Xo. 370) has averaged the 
same as Dawn kafir. In the six years that the tall and dwarf types 
