A STUDY OF VARIATION IN APPLES. 



25 



A study of the variability in size of the apples from the different trees 

 shows small differences that apparently have some meaning. Those 

 from tree No. 7 are quite consistently the most variable of any, and 

 these have been the largest ; there seems to be a possible relationship be- 

 tween size and variability, — the larger the apples the more variable. 



As between the apples from different parts of the tree, this relationship 

 does not hold. The apples from the upper south parts of the trees are 

 largest and least variable, and probably the slight differences in variability 

 that occur are simply chance fluctuations. 



Table 1. — Size of Apples. 



Ben Davis. 



Individual Trees. 



Tree No. 2. 



[Millimeters.] 



Tree No. 3. 



1908 



1909 



1910, 



1911 



1912, 



1913 



Average 



68.80±.15 

 68.48±.19 

 72.27±.19 

 69.14±.07 

 71.71±.15 

 69.54±.09 



69.99 



5.31±.ll 

 5.24±.13 

 6.01±.13 

 4.11±.05 

 5.60±.ll 

 4.90=«=.O8 



5.20 



7.72±.16 

 7.65±.22 

 8.32±.22 

 5.94±.07 

 7.81±.15 

 7.04±.06 



7.41 



