s 



CIRCULAR 2 7 8, U. S. DEPARTMENT OF AGRICULTURE 



Table 1. — Approximate rate of evolution of heat by certain fresh fruits 

 and vegetables when stored at the temperatures indicated — Con. 



Commodity 



Cherries (sour) 



Cranberries: 



Early Black 



Howes 



Cucumbers (Producer and Wanchula) 



Grapefruit 



Grapes: 



Concord 



Cornichon and Flame Tokay 



Sultanina 



Emperor 



Ohanez 



Lemons (Eureka) 



Lettuce 



Mushrooms (cultivated) 



Onions (Yellow Globe) 



Oranges 



Peaches 



Pears (Bartlett) 



See footnotes at end of table, p. 9. 



Temper- 

 ature 



32 

 60 

 32 

 40 

 50 

 32 

 40 

 50 

 32 

 40 

 60 

 32 

 40 

 60 

 80 

 32 

 40 

 60 

 80 

 36 

 60 

 80 

 32 

 43 

 53 

 32 

 43 

 53 

 32 

 43 

 53 

 32 

 40 

 60 

 80 

 32 

 40 

 60 

 32 

 50 

 70 

 32 

 50 

 70 

 32 

 40 

 60 

 80 

 32 

 40 

 60 

 80 

 32 

 60 



Heat evolved per 



ton of fruits or 



vegetables per 24 



hours a 



B. t. u. 

 1, 320 to 1, 

 11, 000 to 13, 



1, 



1, 



2, 



10, 



1, 

 2, 

 4, 



1, 



3, 



8, 



660 to 1, 



2, 200 to 2, 



5, 500 to 6, 



1, 

 1, 



2, 



6, 



11, 



15, 



45, 



6, 



22, 



58, 



660 to 1, 



1, 760 to 1, 



3, 080 to 4, 



690 to 



1, 



5, 



8, 



850 to 1, 



1, 440 to 2, 



7, 260 to 9, 



17, 930 to 22, 



660 to 



8, 800 to 13, 



760 

 200 

 600 

 870 

 800 

 720 

 970 

 650 

 690 

 550 

 460 

 460 

 070 

 770 

 180 

 602 

 170 

 487 

 481 

 100 

 640 

 600 

 430 

 050 

 690 

 350 

 850 

 810 

 300 

 740 

 570 

 580 

 810 

 970 

 200 

 320 

 990 

 980 

 160 

 000 

 000 

 100 

 980 

 180 

 900 

 400 

 000 

 000 

 370 

 030 

 310 

 460 

 880 

 200 



Litera- 

 ture 



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