FLOWERS AND BOLLS OF PIMA AND ACALA COTTON 
17 
from that on the same node of branches on the main stalks, but showed 
a rapid increase on the next and succeeding nodes. The proportion 
of squares developing into mature bolls was slightly lower on the first 
node of the branches of the vegetative limbs than on those of the main 
stalks, but fell sharply on the following nodes; and on nodes 3 to 
last in 1924 and on nodes 4 to last in 1925 no bolls whatever were 
matured. In both years the proportion of squares shed or developed 
into bolls on the last node of the fruiting branches of the vegetative 
limbs did not differ materially from the proportions on the last node 
of long fruiting branches on the main stalks in the same season. 
On fruiting branches of but a single node in 1924 the percentage 
of square shedding was greater than on nodes 1 or 2 of the longer 
branches, and the percentage of squares maturing as bolls was less. 
In 1925 the percentage of square shedding on the single-node branches 
was greater than on any of the specified nodes of longer branches, 
and the percentage of squares maturing into bolls was less than on 
nodes 1, 2, or 3 of the longer branches. 
From the preceding tables and discussion it is obvious that in both 
Pima and Acala cotton the conditions for retention of squares and 
bolls are less favorable on the fruiting branches borne by the vegeta- 
tive limbs than on the fruiting branches borne by the main stalks of 
the plants. 
Table 9. — Number of squares produced, shed, and developed into open bolls on spe- 
cific nodes of fruiting branches on the vegetative* limbs borne by the Acala main 
stalks shown in Table 7, season of 1924 
Nodel 
Node 2 
Nodes 3 to 
last 
Last node only 
Branches of 
one node only 
Plant No. 
Squaies 
ft 
o 
> 
03 
CO 
"o 
pq 
Squares 
T3 
ft 
o 
1 
o 
CQ 
Squares 
Xi 
ft 
o 
1 
03 
Xi 
CO 
Squares 
Xi 
ft 
> 
xi 
CO 
Squares 
T3 
8 

o 
03 
w 
o 
Xi 
a> 
o 
x> 
o 
xi 
CQ 
Xi 
8 
% 
O 
xi 
03 
.a 
cq 
T3 
o 
s 
T3 
03 
CQ 
o 
> 
03 
C/3 
m 
1_. __ 
• 
2... 
5 
28 
22 
10 
5 
15 
16 
7 

3 
9 
1 
1 
3 
1 

1 


9 
1 
1 
7 
1 
1 



2 
1 

9 
1 
1 
7 
1 
1 



1 
4 
2 
5 

6 _. 
7 
16 
2 
15 
4 
1 
2 
3 

2 
16 
2 
15 
6 
1 
11 
4 


5 
1 
1 
3 
1 




16 
2 
15 
8 
1 
11 
1 


14 
18 
25 
12 
14 
14 

8 

9 
1 
10 
11 
5 
7 

2 

1 
5 
7 
2 
6 


5 
7 
2 
6 


7 
28 
5 
21 
1 
12 
1 
1 

3 
13 
14 
3 
1 
1 
3 
2 

1 


3 
2 

13 
7 
2 
15 
W 
4 
19 
17 
37 
31 
3 
13 
11 
16 
20 

1 
9 
9 
17 

1 
2 
7 

3 
4 
1 
1 
9 
9 
17 
1 
5 
4 
9 

1 


1 
9 
9 
17 
1 
8 
12 





IS.. 
3 
1 
10 
3 

7 



1 
19 _ 
2 
20 

Total 
95 
24 
25.3 
16 
16.8 
95 
56 
58.9 
5 
5.3 
25 
16 
64.0 


95 
63 
66.3 
1 
1.1 
278 
179 
64.4 
13 
Percentage. _■ 
4.7 
