Comparing 
yields in pounds 
of seed cotton 
from the two in- 
side rows of each 
block in the dif- 
ferent spacings, 
there is a mean 
difference of 
0.760+0.087 in 
favor of the rows 
with two plants 
every 12 inches. 
This difference is 
8.7 times its prob- 
able error and 
may be regarded 
as significant. 
The mean differ- 
ence corresponds 
to an increase of 
13.4 per cent in 
the rows with 
two plants every 
12 inches, where- 
as the difference 
between the 
mean yields is 
0.72 pound, cor- 
responding to an 
increase of about 
12.7 per cent. 
COMPARISON OF 
ONE PLANT EVERY 
12 INCHES WITH 
THREE PLANTS IN 
HILLS 12 INCHES 
APART 
An effort was 
made to compare 
one plant every 
12 inches with 
three plants in 
hilis 12 inches 
apart, but the 
stands of the 
latter were irreg- 
ular and many 
hills had only one 
or two plants. 
A plant count 
shows the mean 
number of plants 
per 100-foot row 
30 
COTTON-SPACING EXPERIMENTS 
% SACL LOW .7, 
\ IR 
ANI Ah 
NAW eee Y 
BAAN 
N Ze KX Sa4, 
Q VAS Ape 
\ Ra ye Nos 
2PLABTE | PLANT 2PLANTS f PLANT 2 PLANTS 4 PLANT 
Pr 
LES AE OLE. 
NS 
POUYN OS 
? 
Y N 
AN 
, NN 
WS 
q ~ 
\ 
NY) 
Ne 
2 — 
CLLISTS | PLANT BlLAWIS | PLANT GLLANTS / SLANT 
lélNC4H fe lth fe liit4 (2 lWCH (2 (NCA 12 1NC4 
Fiac..15.—Yields (in pounds) of sezd cotton per row from comparison of one 
plant every 12 inches with two plants every 12 inches, Greenville, Tex., 
1925 
