Fe eS Cee ae ae" 
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SINGLE-STALK COTTON CULTURE AT SAN ANTONIO. 7 
Table I shows that during the cool spring of 1914 an average of 1.6 
vegetative branches developed on the wide-spaced plants, while the 
average on the single-stalk plants was 0.53 branch per plant. The 
range of averages in wide-spaced rows was from 1.2 to 2 branches 
per plant, while in single-stalk rows it was from 0.4 to 0.64 branch per 
plant. 
FLOWERING RECORDS. 
Beginning with June 17, when the first flowers appeared, a daily 
flower census was taken in sections A and B to compare the rate of 
flowering of wide-spaced and single-stalk rows. This was continued 
for 20 days. ‘The results of the census are given in Table II. 
In the first part of Table II, which represents the census in section 
A, it may be seen that for three days more flowers opened in the 
wide-spaced rows than in the single-stalk rows, while in the second 
part of the table, which represents the census taken in section B, 
this was true only on the first day that flowers opened. After the 
flowers in the single-stalk rows began to outnumber those in the wide- 
spaced rows the lead was maintained throughout the entire period. 
The increase in the number of flowers in single-stalk rows over -that 
in the wide-spaced rows ranged from 30 to 204 per cent, the average 
for the 20-day period being 125.6 per cent in section A and 135 per 
cent in section B. 
At the end of the 20-day flower census, July 6, the drought had 
become severe, and most of the flowers produced after that date 
failed to develop into bolls. Consequently the census for the entire 
field was not carried further, but was continued for 20 days longer on 
eight representative rows in each of sections A and B. None of the 
flowers opening after July 10 produced bolls, so these flowers had no 
part in increasing the yields of either single-stalk or wide-spaced rows. 
Their numbers are given, however, in Table III for four 10-day peri- 
ods in order to show that the single-stalk rows. continued to produce 
more flowers than the wide-spaced rows for the extended period. — 
Table III shows that at the end of 40 days 12,574 flowers had opened 
on 20 wide-spaced rows in section A, while 84.4 per cent more, or 
23,189, had opened on 20 single-stalk rows. In section B 20 wide- 
spaced rows opened 13,725 flowers, while 20 single-stalk rows opened 
78 per cent more, or 23,401 flowers. 
