YIELDS 



123 



down and into storage. For best results, Bartlett pears should 

 be held at a temperature of 28 to 30"^ F. and Bosc at 30 to 

 32° F. Fruit picked in proper condition may be held several 

 months. The desirable cold-storage period for Bartletts in- 

 tended for canning does not extend beyond 60 days. In any 

 event Bartletts intended for canning later or for the fresh 

 market should be removed from the storage before they ac- 

 quire a pronounced yellow shade, this color change being a 

 dependable danger signal. When removed from storage, the 

 fruit should be permitted to ripen at a temperature of 60 to 

 70° F. in order to develop the highest quality. 



Shipment in refrigerator cars is usually necessary except 

 for late varieties. 



Pre-cooling is advisable for long shipments coming from 

 sections where the fruit has poor carrying qualities. 



5. Export Markets. The export demand is not large. 

 Canada takes a considerable quantity. Some fruit goes to 

 Central America and Brazil, some also to the British Isles 

 and Continental Europe. The European countries take 

 mostly the boxed pears of the West Coast states. 



6. Yields. Extensive records of an authentic nature on 

 pear yields in the Eastern states are not available, but the 

 trees are less productive and come into bearing more slowly 

 than in the Pacific Coast states. Bartletts yield 140 to 160 

 bushels of packed fruit per acre on the average, Seckel about 

 125 bushels, and Kieffer about 210 bushels. 



In California, Bartletts reach commercial production at 

 6 to 7 years ; at 12 years and thereafter, 10 tons or 400 boxes 

 per acre is a fair average yield, larger yields being quite 

 common. Bosc will yield about 300 boxes per acre; Anjou, 

 otherwise desirable, is a very light and variable cropper; 

 Clairgeau yields about the same as Bartlett, and Winter 

 Nelis produces about 300 boxes per acre, on the average. 



