GRAIN-SORGHUM EXPERIMENTS IX OKLAHOMA. 35 
'The stands of both darso and Schrock sorghum have been uniform 
from year to year. Darso has averaged one plant every 6.8 inches 
of row space and Schrock one plant each 7.8 inches for the five years 
they have been included in these experiments. Neither of these two 
varieties is inclined to produce many suckers when grown with a row 
space of about 7 inches between plants. Darso has produced an 
average of 12.1 suckers for every 100 plants, while Schrock has 
averaged 25.4 suckers per 100 plants. This difference in suckering 
may be attributed to difference in stands between the two varieties. 
Poor stands of Dwarf hegari have been obtained in three of the four 
years, the row space per plant averaging 13.4 inches. With such 
thin stands many suckers have been produced, the variety averaging 
75 suckers for each 100 plants. 
From the data obtained none of the three varieties seem to be any 
earlier in maturing than the late selection of Blackhull kafir (C. I. 
Xo. 71V All three of these sorghums -are rather dwarf. 
The grain yields, which are for but five and four years, do not 
show any superiority when compared with the better varieties of 
kafir, and in 1918 all of these newer varieties made poor yields in 
common with most of the sorghums. One difficulty experienced 
with Dwarf hegari in 1921 was that it broke up, producing about 50 
per cent tall plants. These were very late in maturing and were 
cut out or rogued before harvesting the plat. Whether this break- 
ing up was due to chance crossing with other varieties or to an 
inherent unstable condition can not be stated. However, the same 
precautions were taken as with the other varieties to keep the seed 
of Dwarf hegari pure, and this was the only variety that behaved in 
this manner. 
The annual and average yields of these three sorghums are shown 
in Table 12, with the kaoliangs and shallu. 
COMPARATIVE YIELDS OF THE GRAIN SORGHUMS. 
The annual and average yields of the varieties and selections of 
f-ain sorghum grown in the varietal experiments at the Woodward 
ield Station during all of the eight years from 1914 to 1921, inclusive, 
are shown in Table 14, together with those of other varieties which 
have been added to the experiment since 1914 and are still included. 
Averages for different periods of years are shown, in order to compare 
varieties and selections not grown for the full 8-year period. Four 
strains of milo, one of feterita, six of kafir, three of kaoliang, and 
one of shallu have been grown in the varietal experiments for the 
entire eight years. 
Considering the average grain yields for eight years, Sunrise and 
Dawn kafirs rank first and second, respectively. Standard Yellow 
milo, the two dwarf milos, and feterita averaged practically the same, 
ranking after Sunrise and Dawn kafirs. Red kafir averaged slightly 
less, and the two brown kaoliangs and shallu made the lowest average 
yields in the 8-year period. 
