156 



POMOLOGY 



the limiting factor. This condition is not the usual one, 

 however, although the same conditions obtained in southern 

 Illinois. The average difference in favor of the sod plot is 

 shown below. 



Much the same results were obtained at the Woburn Ex- 

 perimental Fruit Farms (England), as indicated in the fol- 

 lowing summary of the data: 



