Bui. 974, U. S. Dept. of Agriculture, 



Plate XXI II. 



Fig. I.- 



-Plantation of 2-Year-Old and 3-Year-Old Hybrid Blueberries 

 AT Whitesbog, N. J. 



The soil is a wliite sand mixed with upland peat and is strongly and permanently acid. 

 The rows are 8 feet apart, the plants 4 feet apart in the row. The row at the left consists 

 of 3-year-old plants; the others are 2 years old. Each of these plants is a seedling hybrid, 

 and although of carefully selected pa'rentage its own qualities can not be kaown until it 

 fruits. The photograph'was taken August 2, 1917. 



Fig. 2. 



From ( 



-Plantation of 5-Year-Old and 6-Year-Old Hybrid Blueberries 

 AT Whitesbog, N. J. 



rom (lie .same point as figure I, ahi)\o, but from a photograph taken three years later, on .hilv 

 2(1, I'.lJO. The ]ilants in ll\e U-fl-hand row are now G years old. the otlie'rs .t. In tlie liaelc- 

 ground a blueberry packing shed lias been erected. "At the right in the background are 

 shown the gauze screens that aro placed over selected bushes which are to be kept luider 

 special observation. 



