T02 



Bulletin 393 



fruits borne under exactly the same conditions when studying the rela- 

 tions between weight of fruit, vigor of spur, and number of seeds. Only 

 fruits that have developed from flowers having a similar position on their 

 respective spurs can be compared. 



Fig. 8. fruits with long and with short stems 



If a fruit with a long stem and one with a short stem are borne on the same spur, the former will usually 

 be smaller than the latter even the the former contains the greater number of seeds 



Relation between number of seeds and size of fruits on spurs bearing one 



and on those bearing two fruits 



In order to have fruits that are borne under the same conditions, only 

 spurs bearing one fruit can be considered. If two fruits are borne on the 

 same spur, the apples are developing under a handicap as compared with 

 fruits borne singly. Data indicating that such conditions obtain are 

 presented in table 51. Only the largest fruits on the two-fmited spurs 

 were considered. The fruits were developed from lateral flowers on the 

 spur. The variety was Tompkins King. It is seen from the table that 



216 



