i6i 



was killed in Missouri. The material was generally kept at the mini- 

 mum for thirty minutes. The temperature fall was as slow as it 

 could be made with the freezer used. 



Table 51. Giving Results of Artificial Freezing of Fruit 



Blossoms 



Material 



Condition of 



Flowers When 



Frozen 



Percent- 

 age 

 Killed 



Apple, Ben Davis. . . . 



Peach, Elberta Seedling 



Pear, Kieff er 



Plum, Wild Goose.. . . 



Cherry 



Apple, Stannard ._ 



Peach, Elberta Seedling 



Pear, Kieffer 



Plum, Wild Goose... . 



Cherry 



Apple, Ben Davis. . . . 



Peach, Rareripe 



Apple, Jonathan 



Apple, Jonathan 



Apple, Jonathan 



Cherry, English Morello 

 iCherry, English Morello 



Apple, Rome Beauty . . 

 " Peach, Hiley 



Cherry, Montmorency. 



Apple, Jonathan 



Peach, Early Bernard. . 



Peach, Gold Drop 



Cherry, Dyehouse. . . . 



Plum, Wild Goose.. . . 



Pear, Kieffer 



Apple, Jonathan 



, Peach, Lewis 



Cherry, Dyehouse — 



Not fully open 

 Fully open . . . 



Fully open 



Fully open. . . 

 Not fully open 

 Fully open. . . . 

 Fully open. . . . 

 Fully open. . . . 

 Fully open. . . . 

 Fully open. . . . 

 Fully open. . . . 

 Petals falling. . 

 Not fully open 

 Fully open. . . 

 Petals falling. 

 Fully open. . . 

 Petals falling. 

 Fully open. . . 

 Young fruit . . . 

 Fully open.. . 

 Young fruit... 

 Young fruit . . . 

 Young fruit . . . 

 Young fruit . . 

 Young fruit . . 

 Young fruit . . 

 Young fruit . . 

 Young fruit . . 

 Young fruit . . 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



Apr. 



May 



May 



May 



May 



May 



May 



May 



May 



May 



May 



May 



May 



31.0 



6.1 



0.0 



0.0 



50.5 



40.0 



60.9 



32.8 



0.0 



58.2 



22.9 



2.5 



8.0 



56.4 



18.0 



48.5 



67.1 



40.9 



1.3 



52.5 



71.7 



94.6 



75.4 



70.4 



16.1 



78.1 



68.4 



43.5 



66.6 



These artificial freezings are not accurate in determining the 

 minimum temperature which the bloom, etc., will withstand, since 

 it is not possible to duplicate in the freezer the rate of temperature 

 fall, etc., outside, nor is it possible to make two freezings exactly 

 duplicate each other. However, it is safe to conclude from this 

 table that the unopened flowers are slightly more hardy than the 

 fully open ones, and that the fruits are slightly more tender than the 

 flowers. The difference with apples, judging from these freezings 

 and from our observations on freezings outside, is not so great as 



with peaches. 

 11 



