58 



QUINCE CULTURE. 



have a piece of apple or quince root grafted on to push 

 them. The chief thing is to guard against the exhaus- 

 tion of sap by evaporation until roots are formed. Fa- 

 cilities for regulating light, heat, air, and moisture with 

 precision will enable us to succeed with a succulent cut- 

 ting furnished with a few leaves. When the air is 



Fig. 38. LARGE CUTTING. 



Fig. 29. BOOT-GRAFTING. 



warmer than the earth, buds are excited more than roots; 

 and when the ground is warmest, root growth is most ex- 

 cited. Hence the custom of burying cuttings inverted 

 during the winter, to keep the buds dormant while a 

 callus is forming for the emission of roots. 



In preparing the small cuttings to receive the pieces of 

 roots grafted on them, the chief thing is to have their 



