The flowers of the Bartlett pear are fully perfect ; there is chance for 

 abundant self- and close-pollinations, yet these fail to give a satisfactory 

 yield of fruit. Usually no fruit sets to such pollination but sometimes small, 

 irregular shaped, and poorly flavored fruits develop as shown at the right 

 above. When properly interplanted so that compatible cross-pollinations 

 are provided, fine fruits as shown at the left may be had. The growing 

 of a solid block of the Bartlett pear, or of most other varieties as well, de- 

 creases the yield and the quality of the fruit produced is poorer compared 

 with the yield when there is proper interplanting with other varieties. 



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