106 



BULLETIN 624^, IT. S. DEPARTMENT OF AGRICULTURE. 



Table III. — Performance record of individual Valencia orange trees of different strains, 

 showing the weight and 'number of the fruits of each grade and size and the variable 

 fruits produced, detailed for the season of 1915 and also summarized for four seasons, 

 1912 to 1915, inclusive — Continued. 



SECTION C.— TREE No. 37-53-20, BARREN STRAIN, LISTED IN RANK 105 IN TABLES 



I AND II— Continued. 



Summarized Record for Four Seasons. 



Grades and sizes. 



1912 



1913 



1914 



1915 



Total. 



Aver- 

 age. 



Weight of fruits: 



Lbs. oz. 

 

 2 1 

 7 13 



Lbs. oz. 



8 



1 7 

 2 



Lbs. oz. 

 

 

 



Lbs. oz. 







1 14 

 15 



Lbs. oz. 

 8 

 5 6 

 8 14 



13 



Standard grade 



Culls 



1.34 

 2 22 









9 14 



9 







1 2 

 

 6 

 

 

 

 

 



2 1 







2 13 



14 12 



3 69 







Sizes — 



1 7 

 

 

 8 

 

 

 

 

 

 





 

 

 

 

 

 

 

 

 



1 

 

 

 6 

 

 8 

 

 

 

 



3 







1 2 

 14 

 6 

 8 

 

 

 

 



75 



250 





216 



200 



.28 

 22 



176 



150 



.09 

 .13 



126 



112 





 



96 





 







Total 



2 1 



1 15 







1 14 



5 14 



1.47 



Number of fruits: 







6 



40 



1 

 6 

 2 





 

 





 6 



4 



1 

 18 

 46 



.3 





4 5 



Culls 



11.5 









40 



9 







10 



65 



16.3 







Sizes — 



2 

 

 3 

 

 1 

 

 

 

 

 



6 

 

 

 1 

 

 

 

 

 

 





 

 

 

 

 

 

 

 

 



4 

 

 



1 

 



1 





 

 

 



12 



3 

 2 

 1 

 1 

 

 

 

 



3 



250 



216 





200 



.5 



176 



.25 



150 



126 



.25 

 



112 '. 







96 

















Total 



6 



7 











19 



4.75 







A comparison of the records of the trees listed in ranks 45, 51, and 

 54 of Tables I and II will bring out further the variations in production 

 that may occur within a strain as that term is here employed. These 

 three trees produced practically the same average yields for the 

 4-year period, but their crops for each year have varied considerably 

 and in very different ratios. 



The tree listed in rank 45 is representative of a small class which. 

 shows a gradual decrease in production each year. This is, of course, 

 an undesirable condition, and in commercial practice such trees should 

 be top-worked as soon as their production falls below the point of 

 profitableness. The tree listed in rank 51 is representative of the 

 most desirable group of any commercially valuable strain, namely, 

 that one in which the crop production is gradually increased from year 

 to year. The trees recorded in ranks 2, 5, 9, 16, 17, 21, 27, and 37 



