4 BULLETIN 830, U. S. DEPARTaIEXT OF AGRICULTURE. 



determinations indicates the number of berries or cherries used. 

 Each berry was tested five times and the tests averaged. The pres- 

 sures required to puncture the epidermis of the fruit in each separate 

 lot were averaged, and the results are shown in the appropriate 

 columns. The temperatures at which they were tested and the treat- 

 ment given the fruits before testing are also shown in the table. 



Table I.— Pressure required to puncture certain fruits freshly picked and after 24 hours 

 under stated conditions, each determination representing the average of five punctures on 

 a single fruit. 



Sec. A.— Stra-wberry Fruits, Using a Needle 636 Microns in Diameter. 





Tested soon after picking. 



Tested after 24 hours in ice box 





Warm. 



Cooled in ice 

 box. 



Washed in tap 

 water. 



Warmed to 

 room tempera- 

 ture. 



Cold. 



Variety. 



3 



-3 c 



d 



ID 

 CO 



© 



© 

 in 



d 



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i 

 © 

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1 



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00 



© 

 © 



d 

 2 

 "3 

 o 1 



© 

 © j 



~ r 



d 

 © 



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© 

 © 



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d 

 g 



'3 



cr 1 



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© if 



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d 

 2 

 •3 





— c 



3 







3 





% o 



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bi rt 



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3 



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2 



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3 



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 3 



3 

 © 



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3 



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a 



3 



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3 



a 



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3 



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 ft 



£ 



1 



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*A 



H 



-" 



z 



H 



* 



Z 



Eh 





fc 



H 





z 



r- 



ft 







°C. 



Gms. 





°C. 



Gms. 





"<7. 



Gms. 





°c. 



Gms. 





°r. 



Gms. 



Cooney 



in 



m 



4.41 









q 



*>fi 



4.76 



10 



?"i 



3.64 



1? 



16 



6.34 



Do 



10 



9 



26 



5 



29 

 24 

 26 

 23 

 29 

 30 

 23 



4.79 

 3.87 

 4.11 

 5.06 

 4.83 

 4.95 

 5.28 



10 

 9 



18 

 5 

 7 

 6 

 3 



16 

 13 



16 

 16 

 16 

 16 

 13 



5.57 

 5.39 

 6.05 

 6.50 

 7.79 

 6.79 

 7.07 



5 



29 



4.81 













Do 









s 



13 



5.18 



Do 















Do 





















No. 29-5 















7 



16 



6 30 



Undetermined 

















Do 





































SecS. 



—Black E 



aspberry Fruits, 



Using a Needle 121 Microns in 



Dlameter 









10 



25 



4.45 



8 



14 



6.23 









10 



27 



4.15 



10 



13 



. .. 













Sec. C. — Red Raspberry Fruits, Using a Needle 313 Microns in Diameter. 



Ran ere {St. Regis). 

 Undetermined. 



4. 86 

 4.93 



6.41 



3.SS 

 3.51 



5.65 

 4.90 



Sec. D.— Blackberry Fruits. Using a Needle 60 Microns in Diameter. 



Erie 



Lawton. . . 

 Wachusett . 

 Lawton . . . 

 Unknown 

 Do.... 

 Erie 



10 27 7 



5.60 

 5.45 

 6.52 

 5.59 

 6.00 

 7.92 



10 13 8 



6.36 

 6.50 

 8.47 

 6.83 

 8.11 

 9.06 



5.46 

 5. 53 

 6.30 



6.24 



5 26 



5.62 



7'. 36 



5 13 



7.16 

 6.35 

 8.18 



Sec. E.— Cherry Fruits. Using a Needle 68 Microns in Diameter. 





15 

 16 



27 

 29 



5.08 

 5.65 



15 

 16 



16 



13 



6. 46 

 6.88 



1 



1 1 



1 







Do 









10 



13 



7.10 





1 



1 1 







