IMPROVEMENT OF CITRUS FRUITS THROUGH BUD SELECTION. 19 



A series of consecutive performance records is necessary to secure 

 reliable select stock, and methods of securing these data and tabulating 

 them for intelligent interpretation are described in the foregoing 

 pages. 



The yield of established orange and pomelo trees of the same 

 variety varied greatly iji the same gi-ove and under similar conditions 

 during the past season. Further data are necessary in order to know 

 whether tiie high and low yielders of the past season are consistent in 

 their behavioi'. 



The importance of uniformly high-yielding trees bearing a large 

 proportion of valuable fruit is apparent by conjparing the 3'ield of the 

 best with that of the poorest trees in any grove. It is probable that 

 the yield can be greatl}' increased and improved l)y securing trees of 

 uniforndv good performance. 



The development of reliable select stock is of the greatest possible 

 importance to the prospective planter. 



Approved: 



f I AMES Wilson, 



Secretary of Agriculture. 



Washington, D. C, March '21, 1911. 



[(-ir. 77.] 



o 



