Apr. 19, 1924 
Germination of Cottonseed 
289 
Tex., as well as at the Arlington Experiment Farm near Washington, D. C. Five 
hundred seeds of ‘each sample were spaced about two inches apart by hand at 
each planting. From three to six plantings, about a week apart, were made at 
each station. It was hoped in this way to study the effect of a variety of en¬ 
vironmental conditions on the field germination of sensitive samples. The 
laboratory behavior of the six samples used in the field tests is described in 
Table I. 
Table I.— Description of the six samples of cottonseed used in the field tes[s a 
Germination just before send- 
ing out for the field tests 
General behavior in 
laboratory tests 
No. 
Variety 
Source 
Stand- 
“Pre- 
In soil in 
ard 
wetting’' 
germi- 
method 
method 
nators 
Per cent 
Per cent 
Per cent 
483 
Lone Star... 
Clarksville, Tex... 
Uniformly high germination; 
94 
97 
95 
no tendency to mold. 
499 
.do. 
Manchester, N. C_ 
Generally high germination; 
93 
96 
94 
occasionally slight tendency 
to mold. 
G-40 
do 
Greenville, Tex... 
Mesquite, Tex.... 
Somewhat “sensitive”. 
84 
91 
93 
446 
.do. 
Very “sensitive.” Heavy 
64 
93 
97 
mold when tested by stand¬ 
ard method. 
C-7 
6114 
Mebane. 
_do_ 
Lockhart, Tex_ 
.do.. 
]“ Sensitive.” Considerable 
> mold when tested by stand- 
j ard method. 
1 71 
1 79 
96 
97 
97 
99 
l 
a All seed of 1922 crop except No. 446, which was grown in 1921 and stored in the laboratory for about 
eighteen months. 
When tested in soil in the laboratory or by the prewetting method, these 
samples were equally good, but when tested by the standard method, two sam¬ 
ples were strong and the other four were sensitive in various degrees. 
Their relative behavior under field conditions is summed up in Table II. 
Table II.— Average field germination of the six selected samples of cottonseed. 
The germination for each sample is averaged from several successive plantings at 
each of five stations 
Number 
Average germination for each sample 
Station 
of plant¬ 
ings 
averaged 
Sample 
No. 483 
Sample 
No. 499 
Sample 
No. G-40 
Sample 
No. 5114 
Sample 
No. C-7 
Sample 
No. 446 
Arlington, Va_ 
5 
Per cent 
72.6 
Per cent 
62.2 
Per cent 
61.8 
Per cent 
55.9 
Per cent 
50.9 
Per cent 
40.2 
Lawton, Okla_._ 
5 
a (64-80. 8) 
70.9 
(45. 8-78) 
58.8 
(52. 8-72. 6) 
58.4 
(51-60.6) 
57.5 
(41-64. 8) 
61.9 
(32.6-53) 
31.4 
Greenville, Tex_ 
.6 
(68. 8-75.8) 
70.6 
(51. 2-64.4) 
63.7 
(47. 4r-66. 8) 
61.1 
(44. 2-68. 8) 
52.7 
(56.6-73. 2) 
48.2 
(27-40.8) 
37.1 
San Antonio, Tex_ 
3 
(61.4-85) 
83.3 
(37. 8-79. 2) 
74.9 
(48-66. 2) 
74.2 
(44. 2-59. 4) 
66.3 
(31-58. 4) 
68.9 
(30-43) 
45.5 
College Station, Tex_ 
3 
(78. 4-86. 6) 
70.3 
(72-79. 4) 
77.1 
(65. 6-80. 2) 
64.5 
(60. 2-69. 8) 
61.6 
(60. 2-73. 8) 
67.2 
(34. 4-58. 4) 
36 
Average of all plantings. 
• 
22 
(68. 8-71. 4) 
72.8 
a(58.8-86.6) 
(69. 6-87. 2) 
65.6 
(37. 8-87. 2) 
(59. 2-71. 8) 
62.9 
(47.4-80. 2) 
(58-65. 6) 
57.6 
(44. 2-69.8) 
(56-79. 2) 
57.4 
(31-79. 2) 
(25-49. 6) 
37.6 
(25-58. 4) 
a The numbers in brackets represent the extremes of germination of the individual plantings that enter 
into the average. 
88287—24f-7 
