May, 1931] Studies in Economics of Apple Orcharding 



13 



curve (Figure 3) was accepted as the best available representation of 

 amount of foliage at various ages, and when made to a scale of the 

 mature tree as unity, a factor representing the per cent, of mature 

 tree represented by gach age was available. As in the case of the 

 expected normal yield, the number of trees of each age in each orchard 

 was multiplied by the factor for that age. and the sum of these made 

 the equivalent of mature trees for that farm. Table 3 shows the num- 

 ber of actual trees and of mature-tree equivalents for the various 



A(jm6er 

 o/ /rees 



saao\ 



^0{?(P 



3oao 



^O0O 



Acft/Q/ Afymber of Trees 

 6^6f/¥o/e/Jf Mature Tree3 



5 6/8 



f^arm Number 



Fig. 



. Number of trees in each orchard and number of mature trees to 



ivhich each would be equivalent 



The several orchards and the different blocks in each were composed of trees 



of miscellaneous ages. This made it necessary for purposes of comparison 



to reduce time and cost requirements to the basis of 1,000 mature trees, 



which is approximately a unit of 40 acres of orchard in its prime. 



Table 3 — Actual number of trees and estimated equivalent mature trees 



on each orchard for each year. 



Farm 



1926 



Actual Equivalent 



Number Mature Trets 



1927 



Actual Equivalent 



Number Mature Trees 



1928 



Actual Equivalent 



Number Mature Trees 



