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Massachusetts 

 Agricultural Experiment Station 



BULLETIN No. 238 OCTOBER, 1927 



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HEAD FORMATION IN 

 APPLE TREES 



By J. K. Shaw 



In 1916 the Experiment Station laid out an apple orchard to be used for 

 a comparison of six different types of pruning. The purpose of the ex- 

 periment was to find how the trees reacted to certain definite treatments 

 continued year after year. Results are reported in this bulletin in terms 

 of growth and early production, with a series of tracings of photographs 

 to show how individual trees developed under the various treatments. The 

 ends to be gained by pruning are discussed, and directions given for prun- 

 ing young trees at the time of setting and for several years thereafter, 

 until the type of tree is established. 



Requests for bulletins should be addressed to the 



AGRICULTURAL EXPERIMENT STATION 



AMHERST, MASS. 



