56 



Bulletin 393 



twenty in Westfield, because this variety averages higher than five flowers 

 to the spur. The percentage of flowers which finally set, as given in 

 table 5, is obviously too high if all flower -bearing spurs are considered. 



Spurs setting fruit after the June drop 



Consideration of spurs from many limbs. — The percentage of flower- 

 bearing spurs that retain fruits after the June drop is 'given in table 6. 

 These data were obtained during the latter part of July and the early 

 part of August. The figures are based on a consideration of all spurs 

 found on many branches of each variety. 



TABLE 6. Percentage of Flower-bearing Spurs Retaining Fruit 



AFTER THE JUNE DROP 



Only about one-sixth to one-third of the flower-bearing spurs become 

 fruit-setting spurs, as indicated by these data. 



Variations in percentage of spurs setting fruit after the June drop. — The 

 percentages of fruit-bearing spurs on individual twigs of a number of 

 varieties are given in table 7. Notes concerning the source of the indi- 

 vidual twigs were obtained in some cases. These indicate that the angles 



TABLE 7. Variations in the Percentage of Flower-bearing Spurs That 

 Set Fruit after the June Drop (1915) 



I/O 



