COTTON IN WEEVIL-CONTROL EXPERIMENTS 11 
soils, when the moisture supply is plentiful. In the present experi- 
ment the late-planted cotton made considerably more vegetative 
erowth than that planted early, in spite of drought conditions. 
The larger growth of the late-planted cotton resulted from the devel- 
opment of longer internodes on the main stalk and on the fruiting 
branches. Although the plants grew taller they had fewer nodes, 
as shown in Figure 3. 
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AVERAGE HEIGHT OF PLANTE (INCHES) 
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Fic. 4.—Growth in height of cotton plants at San Antonio, Tex. 
PRODUCTION OF FLORAL BUDS 
The fruiting capacity of a cotton plant is determined principally 
by the number of fruiting branches formed on the main stalk and 
the number of internodes formed on the fruiting branches. The 
plants in the successive plantings at San Antonio were small and 
formed few squares on secondary fruiting branches, and these are 
not included in comparisons of the fruiting capacity of plants. 
The average number of squares formed on 10 plants in each of the 
four plantings is given in Table 7. The numbers of squares were 
recorded at 2-week intervals throughout the fruiting stage of the 
plants, the final record on August 11 representing the total number 
of squares formed on the plants. 
TABLE 7.—Average number of squares recorded at 2-week intervals on cotton plants 
grown in successive plantings at San Antonio on four different dates 
| 
| Number of squares recorded on— 
Date planted, 1923 
| 
June 1 | June 15 | June 28 | July 13 July 28 | Aug. 11 
BEE QYirs viesse tee ho er = S 2.2 10.6 21.7 26. 6 31.9 | 35.3 
2 TOTP SUE eS ee eT Slee ae 0 6.5 18.6 26. 4 SBHS: 38. 7 
«SE Gas SB ad SESSA ee oe Dn ee 0 SE 7! 17.6 2a. 25.8 28. 5 
2 AST Ge 2 Serer Gat ey, 0 1a 12.8 24. 2 26. 4 30. 9 
