116 MANUAL OF TROPICAL AND SUBTROPICAL FRUITS 



distinct only in the size of stock plant and budwood, and the 

 consequent larger size of the bud. 



Crown-grafting (Fig. 12) is not commonly practiced in 

 Florida, but it has been successful in Porto Rico. It has also 



been employed with 

 good results by H. A. 

 Van Hermann of San- 

 tiago de las Vegas, 

 Cuba, and it is said to 

 have proved satisfac- 

 tory in Hawaii and in 

 India. W. E. Hess, 

 formerly expert gar- 

 dener of the Porto Rico 

 Agricultural Experi- 

 ment Station, who has 

 had much experience 

 with the method, says 

 that it has proved more 

 successful in Porto Rico 

 than budding, and is at 

 the same time superior 

 to inarching because of 

 the greater rapidity 

 with which trees can 

 be produced in large 

 quantities. As in bud- 

 ding, success seems to 

 depend mainly on the 

 condition of stock and 

 cion at the time the graft is made. Provided the stock is in 

 flush, the work can be done at any season of the year. For 

 cions, tip ends of branchlets are used. They should be of 

 about the diameter of a lead-pencil ; of grayish, fully matured, 



Fio. 12. Crown-grafting the mango. On 

 the left, two cions of proper size and charac- 

 ter ; in the center, a cion inserted and another 

 tied in place ; and on the right, the covering of 

 waxed paper which protects the cion while it is 

 forming a union with the stock. 



