<■ BUD VARIATION IN THE VALENCIA OEANGE. 113 
produced by that tree were recorded. For instance, in the case of 
the trees of the Valencia strain all other than Valencia fruits were 
considered as variable ones, while for the trees of the Corrugated 
strain all other than Corrugated fruits were recorded. For the 
trees of the Sporting strain all other than typical Valencia-strain 
fruits were counted as variable ones. 
The comparative freedom of many trees of the Valencia strain 
from variable fruits indicates the possibility of controlling bud 
variability in propagation in commercial orchards by bud selection 
based on performance records. 
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Fig. 6. — Diagram showing the average number of fruits of the various commercial sizes produced annually 
during the 4-year period, 1912 to 1915, inclusive, by the 10 highest yielding and the 10 lowest yielding 
trees in the investigational performance-record plat of Valencia oranges. This production is expressed 
as percentages of a packed box calculated from the average number of fruits of the different sizes. The 
percentage of most desirable sizes is also stated, and the production on the acre basis is shown and its 
value calculated from the actual returns during the four years. 
The average number of seeds per fruit produced by trees of some 
of the various strains of the Valencia orange is shown in figure 8. 
This diagram, in comparison with Table IV, shows a very close corre- 
lation between the number of seeds per fruit and the comparative 
amount of Orchard-grade fruit produced by trees of the different 
strains here listed. It appears that the presence of three or four 
seeds per fruit is characteristic of the Valencia strain. 
Many other interesting characteristics of the various strains of the 
Valencia orange have been studied during the progress of these 
investigations, but those presented here are among the most marked 
14648°— 18— Bull. 624 8 
