936 
Journal of Agricultural Research v 0 i. xxiii, No.» 
15, when the flowering had almost ceased, there had been produced from 
40 to 50 flowers per plant. 
The daily flowering records of the 25-plant sections for each border 
are shown in Table VI. Although the results are in general harmony 
with the data of plant growth, this may not be apparent at first on account 
of the rather wide fluctuations, which no doubt are due in part to the 
limited numbers of plants included in the record. The general consistency 
of flowering behavior of the different treatments is more plainly shown 
by the superposed curves (fig. 3), which represent the totals of daily 
flower production of the three treatments, summarizing all the records 
of Table VI, and by the flowering curves of the three borders of series II 
(%• 4 )- 
By referring to Table VI, it will be seen that significant differences did 
not result from any of the three irrigation treatments, either in the 
number of flowers produced daily or in the total numbers of flowers 
Fig. 3 .—Total numbers of flowers per day on the three 25-plant sections of each treatment. 
produced by each border for the season. This was due, no doubt, to 
the fact that the plants differed but little in size. That the total numbers 
of flowers produced on the 25-plant sections were not exactly proportion¬ 
ate to the numbers produced by each border as a whole can be seen by 
comparing these totals with the yield of seed cotton per border. The 
yields are the practical summaries, while the daily records serve as an 
index of the behavior of the plants. 
A pronounced variation in the number of flowers opening from day to 
day often occurred in this experiment throughout the entire season, but 
independent of the irrigation treatment. Regardless of when or how 
often a border had been irrigated, there were days when all the borders 
had large numbers of flowers. Conversely, on days when only a few 
flowers opened the same tendency was generally apparent in all of the 
borders. This general coincidence in flowering becomes very striking 
when the flowers per day for the three borders treated alike are combined, 
giving the total flowers per day on 75 plants. From figure 3, it will be 
seen that the curves of the different treatments follow each other to a 
marked degree, although the range from day to day is often large. 
