EXPERIMENTS WITH SINGLE-STALK COTTON CULTURE. 31 
gave greater yields at the second picking in 9 of 1 1 instances, and it 
gave greater yields in the only instances where third pickings were 
made. While some of the differences are so small as to be insignifi- 
cant in themselves, there was a general increase throughout the 
entire series of experiments, in several instances by more than 20 per 
cent. 
Eliminating, for the present, those experiments in which it is 
known that the thinning of the single-stalk rows was done too late, 
those in which the stands were generally poor and single-stalk culture 
was applied to only the short spaces in the rows where the stand per- 
mitted the application of the new system, those in which there is no 
assurance that single-stalk culture was properly applied, and those of 
which the reports are defective, there remain at least five experi- 
ments — three in Louisiana and two in North Carolina — that may be 
considered as fairly reliable tests of single-stalk culture. The yields 
of seed cotton from these favored the new system by 20 to 39 per cent. 
It is not to be inferred that the particular treatment applied in 
these experiments is the best development of the single-stalk method 
or that this method is to be recommended for general application in 
the States where the experiments were located. The suitability of 
the new system for any region requires that the local conditions and 
the behavior of the plants be well understood. How to secure the 
greatest possible advantage from the control of the branching habits 
of the plants is a problem worthy of the attention of experimenters 
who are interested in improving cultural methods with cotton. 
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