EASTERN-GROWN APPLES 





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Figure 1. — Firmness (pressure test) of Arkansas (Black Twig) apples in rela- 

 tion to stage of ripeness during ripening at various temperatures. The letters 

 on the chart indicate the degree of ripeness as explained on page 5. The 

 range of firmness or zone representative of each degree of ripeness is given 

 at the right. The letters are omitted from those points at which the desig- 

 nations fall within the corresponding zone at the right, as explained on 

 pages 5 and 6. 



15 



31 



15 



30 



15 



31 



15 



31 



15 



28 



15 



31 



15 



30 



15 



OCT. 





NOV. 





DEC. 





JAN. 





FEB. 





MAR. 





APR. 





MAY 



23 



SOFTENING ON TREE " ' " «-» 



I o 70° 



SECOND PICKING i „_ ,,» 



I o a 36 



Figure 2. — Firmness (pressure test) of Ben Davis apples in relation to stage of 

 ripeness during ripening at various temperatures. The letters on the chart 

 indicate the degree of ripeness, as explained on page 5. The range of firm- 

 ness or zone representative of each degree of ripeness is given at the right. 

 The letters are omitted from those points at which the designations fall 

 within the corresponding zone at the right, as explained on pages 5 and 6. 



