EFFECTS OF MUTILATING THE SEEDS OF CORN. 
Table T. — Data from the seed- mutilation experiments at Waco, Tex-., Rockville, ^fd. 
and Rosslyn, Va., in 1917, 1918, and 1919. 
Ratio of 
■ actual to 
Locality and seed jpossible 
planted. ! stand 
(per 
cent). 
At Waco, Tex., in 
1917:« 
Check 
Dehulled b 
Do 
Check 
Starchless 
Do 
Check 
Germs 
Do 
Check 
At Rockville, Md., 
in 1917:<* 
Check 
Dehulled 
Do 
Check 
Starchless 
Do 
Check 
Germs 
Do 
At RockvOle," Md.V 
in 1918: * 
Check/ 
Dehulled 
Do 
Check 
Starchless 
Do 
Check 
Germs 
Do 
Check 
At Rosslyn, Va., in 
1919:? 
Check 
Dehulled 
Do 
Check 
starchless 
Do 
Check 
Germs 
Do 
Check 
Time 
from 
emerg- 
ence to 
shedding 
of first 
pollen 
(days). 
99 
78 
78 
78 
05 
66 
Number 
of plants 
at har- 
vest. 
39 
48 
Ears harvested. 
Weight (pounds). 
Total. 
33.7 
17.5 
15.5 
28.0 
17.0 
18.0 
17.7 
20.7 
18.0 
31.0 
19.0 
15.5 
21.5 
20.0 
25.0 
21.0 
16.5 
18.5 
25.5 
47.7 
41.1 
39.0 
41.3 
43.1 
39.4 
47.2 
41.8 
40.0 
46.0 
Average. 
0.210 
.182 
.191 
.167 
.171 
.209 
.147 
.161 
.167 
.614 
.500 
.517 
.667 
.378 
.464 
.680 
.543 
.474 
.586 
453 
443 
615 
540 
569 
,568 
485 
440 
,567 
,994 
857 
780 
844 
918 
838 
926 
S36 
870 
940 
Number. 
Total. 
38 
Per 
plant. 
0.976 
1.000 
.980 
.948 
.796 
.878 
.810 
.862 
.876 
1.121 
1.206 
1.154 
.934 
1.046 
.830 
.667 
.974 
.826 
1. 177 
.778 
.778 
.770 
.810 
.934 
1.023 
1.000 
1.043 
1.041 
1.021 
1.021 
.960 
1.085 
1.065 
1.000 
1.114 
Yield per plant 
(pounds). 
As har- 
vested. 
0.205 
.182 
.187 
.158 
.136 
.184 
.119 
.139 
.689 
.604 
.620 
.622 
.395 
.383 
.454 
.531 
.391 
.396 
.345 
.478 
.417 
.500 
.489 
.393 
.411 
.580 
091 
894 
M 3 
.804 
1.005 
.890 
.870 
1.045 
Correct- 
ed to 
check. 
0.180 
.170 
.180 
143 
180 
-.141 
.180 
614 
576 
614 
.445 
.614 
c.504 
.614 
c.384 
.516 
c. 489 
.516 
402 
516 
976 
S98 
976 
c.913 
.976 
f.837 
.976 
Averages of Data from Waco, Rockville, and Rosslyn, 1917-1919. 
Class of seed. 
Time' from 
emergence 
to shed- 
ding of first 
pollen 
(days). 
Number 
of ears per 
Weight 
per ear 
Yield per plant 
(pounds). 
Yield per 
acre 
plant. J (pounds). 
As 
harvested. 
Corrected 
to check. 
(bushels) M 
Check 
68 
72 
70 
72 
0.961 
1.012 
.906 
.910 
0.585 
.485 
.506 
.495 
0.571 
.504 
.466 
.468 
0.572 
.506 
.497 
.467 
57.2 
Dehulled 
50.6 
Starchless 
49.7 
Germs.... 
46.7 
a Seed planted Mar. 14, plants emerged Mar. 24, harvested Aug. 13, 1917. 
>> Stand destroyed by rodents. 
c Average of the corrected yields of two rows. 
d Seed planted May 18, plants emerged May 28, harvested Nov. 1, 1917. 
e Planted June 6, plants e.merged June 12, harvested Nov. 5 and 6, 1918. 
/ Through an error this row was not harvested. 
Q Seed planted May 17, plants emerged May 27, harvested Oct. 6, 1919. 
h Calculated on the basis of a stand of 7,000 plants per acre and 70 pounds of ears per bushel. 
