DELINTING AND RE( LEANING COTTONSEED FOR PLANTING. 
Germination tests of each set of samples were made in the Seed 
Laboratory with the results shown in Table 3. Each germination 
percentage is the average of three tests made in duplicate. 
Table 3. — Germination of cottonseed delinted at varying rates (laboratory tests). 
Rate of 
delinting 
(linters 
per ton). 
Germination. 
Percent- 
age of 
total 
seeds 
germi- 
nating 
that ger- 
minated 
in 4 days. 
Rate of 
delinting 
(linters 
per ton). 
Germination. 
Percent- 
age of 
total 
seeds 
germi- 
nating 
that ger- 
minated 
in 4 days. 
Fourth 
day. 
Ninth 
day 
(final). 
Fourth 
day. 
Ninth 
day 
(final). 
Pounds. 
Ginned. 
37.8 
64.4 
1 80.2 
95.2 
Per cent. 
52.0 
61.5 
63.5 
Per cent. 
83.0 
84.0 
86.2 
Per cent. 
62.6 
73.2 
73.7 
Pounds. 
120.0 
139.4 
161.0 
179.4 
Per cent. 
65.3 
66.5 
66.8 
71.2 
Per cent. 
85.8 
77.5 
75.3 
84.0 
Per cent. 
76.1 
85.8 
88.7 
84.8 
60.0 
84.0 
71.4 
1 Results omitted because of element of error in test. 
Further proof of the shorter duration required for the germina- 
tion of delinted seed is shown by the results of soil tests conducted 
in the greenhouse. These tests were made in triplicate; that is, 
three 100-seed tests were made of the ginned seed and of seeds 
delinted at each rate of cut. Counts were made daily beginning 
with the fourth day, counting all seedlings of which the cotyledons 
had opened and averaging the results of the three tests in each lot. 
Detailed results of these tests are given in Table 4 and presented 
graphically in Figure 2. 
Table 4. — Germination of cottonseed delinted at varying rates (greenhouse 
Rate of 
delinting 
(linters 
Germination as shown by 
daily counts. 
Percentage of total number 
germinating that germin- 
ated in a given time. 
per ton). 
Fourth 
day. 
Fifth 
day. 
Sixth 
day. 
Final. 
4 days. 
5 days. 
6 days. 
Pounds. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Ginned. 
9.0 
70.3 
85.7 
90.0 
10.0 
. 78.1 
95.2 
37.8 
51.0 
87.0 
89.3 
89.7 
56.8 
97.0 
99.6 
64.4 
60.0 
88.0 
89.7 
89.7 
66.9 
98.1 
100.0 
80.2 
62.0 
91.3 
94.3 
94.7 
65.5 
96.4 
99.6 
95.2 
66.0 
87.3 
90.0 
90.3 
73.1 
96.7 
99.7 
120.0 
65.7 
90.3 
91.3 
91.7 
71.6 
98.5 
99.6 
139.4 
67.3 
90.0 
91.7 
92.0 
73.2 
97.8 
99.7 
161.0 
70.0 
88.3 
91.0 
91.0 
76.9 
97.0 ; 100.0 
179.4 
7\7 
90.7 
92.7 
92.7 
84.9 
97.8 100.0 
In all greenhouse tests the final or total percentage of germination 
of each delinted sample was practically equal to and in most instances 
higher than that of the ginned sample. This indicates that the 
delinting operation does not injure the germination. Also the green- 
house tests were conducted during August, 1922, while the seeds 
used were delinted on- October 14, 1921, and were stored in bags 
during the intervening period of 10 months. This seems to disprove 
the theory sometimes advanced that delinted seeds would lose their 
viability quickly and would be of little value for planting purposes 
if stored for anv length of time. 
