Bui. 334, U. S. Dept of Agriculture. 



Plate XV. 



Fiq. 1 .—Three-Year-Old Blueberry Plant in Commercial Bearing. 



This plant is a hybrid between two selected wild stocks, from Greenfield, N. H., and Brown 

 Mills, N. J. They were hybridized in the greenhouses at Washington in the summer of 1912, 

 and the hybrid seeds were sown September 9. The young plants were carried over winter 

 in the greenhouse, and early in September, 1913, they were sent to Whitesbog, N. J., and 

 set out in a trial field plantation. The photograph was taken July 27, 1915, when the plant 

 was a little less than 3 years old. The plant is one of those shown in figure 2 (below). 

 (About one-fifth natural size.) 



Fig. 2.— Plantation of 3-Year-Old Blueberry Hybrids at Whitesbog N.J. 



These hybrids are of the same age and parentage and have received the same treatment as the 

 plant "shown in figure 1 (above). In the third year from the seed they produced their first 

 commercial crop, valued at 137 per acre, gross receipts. The rows are 5 feet apart and the 

 plants 3 feet apart in the row, too close a spacing for a permanent plantation (which should 

 be 8 by 8 feet) but correspondingly more productive in the earlier years. 



