04 
Research Bulletin Xo. 3 
was no sign of branching in the case of the plants in the H O, 
Wauneta, and McCook cylinders. From that time on there was 
much less uniformity in the development of the plants in the 
different cylinders. 
Figure 30 shows the condition of 6 of the plants on May 27, 
when they had all reached their full development; that on Lin- 
coln soil had died and had been removed a month before. Table 
23 gives the data on the experiment and Table 24 shows the 
moisture conditions. The distribution of roots is shown in 
figure 31. 
On the H O soil the plant matured one head and died without 
putting forth any branch. By May 18 the leaves were all dead 
but the seed was slightly soft. Twelve days later the grain was 
hard and the entire plant dead and quite dry. The plant (fig. 
30) had formed a good head bearing 308 seeds. The cylinder was 
opened that day. The roots were abundant and uniformly dis- 
tributed (fig. 31 and Table 24) thruout the subsoil. The free 
water in the surface foot had fallen to — 2.9 while that in the 
subsoil had been uniformly reduced to 0.7 per cent. 1.9 per cent 
below the wilting coefficient. 
The plant in the Wauneta cylinder put forth a branch soon 
after May 0 but by May 18 this had ceased to grow, being then 
3.5 inches long. On May 30 the seed was practically ripe and 
the leaves of the main stalk were dead but the branch was still 
quite green. The latter continued alive until July, thruout June 
gradually dying back from the tip. Even after the first adverse 
days of July it showed some signs of life, but was quite dead 
on July 5. The size of the branch is shown in figure 30. taken on 
May 27. The development of this branch, which had a long 
lease of life after the main stalk died, is the only point in which 
the development of the plant in the Wauneta cylinder dif- 
fered markedly from that in the H O cylinder. Like the latter 
it formed a good head and this bore 319 seeds. The cylinder was 
opened two days after the death of the plant The distribution 
of roots resembled that in the H O cylinder. The free water in 
the surface foot had been reduced to — 3.8 per cent and in the 
subsoil to approximately zero. 
The plant in the McCook cylinder differed but little in de- 
velopment from that in the Wauneta cylinder. It formed a 
branch at the same time as the latter and this on May 13 was 
8.0 inches long, and on May 30. when it had three leaves, it was 
9.5 inches long (fig. 30). after which it ceased to make any ap- 
preciable growth. On May 30 the seed was ripe but all the rest 
of the plant, except the lowest leaves, was green. On June 17 all 
the leaves except those on the branch were dead, but the branch 
