HORTICULTURE. 



161 



Trees produced by grafting or budding improved varieties 

 on seeding pear stock produces what is known as standards. 



A half standard is produced by taking a dwarf tree and slit- 

 ting it just above the point of union with the quince root on 

 which it has grown and then planting the tree deep enough so 

 that the point of union will be several inches under ground. The 

 slit should be made with a sharp knife. The cut should be 

 through the bark in an upward direction. A callus will form 

 as a result of this wound and from this point roots will begin 

 to grow. Finally they will become strong enough to sustain the 

 tree. The tree will continue to produce after the quince roots 

 have ceased to act. 



Some varieties of pear trees are infertile and should be in- 

 termingled with some other varieties that are good pollenizers. 



SCORE CARD FRUITS. 



(Lenox, Mass., Horticultural Society, 1913.) 



References for Reading on Fruit Culture. 



BOOKS. 



1. The Fruit Garden Barry, 7-8 Orange Judd & Co., $1.50. 



2. Principles of Fruit Growing Bailey, 8-12 Macmillan Co., $1.50. 



3. Popular Fruit Growing Green, 8-12 Webb Pub. Co. 



4. The American Apple Orchard Waugh, 8-12 Webb Pub. Co., $1.00. 



5. Dwarf Fruit Trees Waugh, 8-12 Webb Pub. Co., $0.50. 



6. Berry Book Biggie, 8-12, $0.50. 



7. Plum and Plum Culture Waugh, 8-12 Webb Pub. Co., $1.50 

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