68 Bulletin 393 



TABLE 20. Weights of Setting and of Non-setting Flower-bearing Spurs 



Set of fruit on spurs of different weights 



The flower-bearing spurs from a Fallawater branch were classified, 

 according to their weights, as heavy, medium, and light. The average 

 weight of each lot is given in table 21, together with the percentage of 

 spurs that produced fruit: 



TABLE 21. Set of Fruit on Spurs of Different Weights 



The heaviest spurs produced the most fruit, and the lightest produced 

 the least. These data alone are insufficient to establish the relation between 

 set of fruit and vigor of spur, but they lend additional support to the 

 facts presented in tables 20 and 22. 



Weights of spurs holding fruits for varying lengths of time 



The weights of spurs that lost all fruit at the first drop, of those 

 that held fruit until the June drop, and of those that held fruit after the 



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