Killing of Plant Tissue by Low Temperature 



175 



Since it requires a large number of blooms or young fruits to 

 furnish sap for a freezing point determination, only one such deter- 

 mination was made. This resulted as follows, using fruits treated 



just as they were for freezing: 



Depression 

 degrees 



Cherries fresh from tree . 905 



Cherries from twigs with ends in glycerine sixteen hours 1 . 180 



Cherries wilted five hours 1 . 075 



Peaches fresh from tree 965 



Peaches from twigs with ends in glycerine sixteen hours 1 . 230 



Peaches wilted five hours 1 . 085 



Apples from twigs with ends in glycerine thirty hours 1 .408 



Apples from twigs with ends in water thirty hours 1 . 335 



Apples from twigs with ends in cane sugar thirty hours 1.530 



Apples from twigs with ends in glycerine forty-eight hours 1.417 



Apples from twigs with ends in water forty-eight hours 1.030 



Api)les from twigs with ends in cane sugar forty-eight hours 1 . 160 



