i88 



Missouri Agr. Exp. Sta. Research Bulletin No. 8 



Table 15. Showing the Effect of Slow and Rapid Thawing 

 ON the Amount of Killing of Peach Fruit Buds. 



Variety 



Hills Chili 



Hills Chili 



Hills Chili 



Hills Chili 



Lewis 



Lewis 



Elberta 



Elberta 



Elberta 



Elberta 



Rice's Seedling 

 Rice's Seedling 



Elberta 



Elberta 



Treatment 



Thawed 

 Thawed 

 Thawed 

 Thawed 

 Thawed 

 Thawed 

 Thawed 

 Thawed 

 Thawed 

 Thawed 

 Thawed 

 Thawed 

 Thawed 

 Thawed 



rapidly, 

 slowly. , 

 rapidly, 

 slowly. . 

 rapidly, 

 slowly. . 

 rapidly, 

 slowly. , 

 rapidly, 

 slowly. , 

 rapidly, 

 slowly . . 

 rapidly, 

 slowly . . 



Date 



Jan. 



Jan. 



Jan. 



Jan. 



Feb. 



Feb. 



Dec. 



Dec. 



Dec. 



Dec. 



Mar. 



Mar. 



Mar. 



Mar. 



21, '1 



21, '1 

 22, '1 

 22, '1 

 9,'l 

 9,'l 

 8/1 

 8.'1 

 13, '1 

 13, '1 

 24,'13 

 24,'13 

 24,'13 

 24,'13 



Percent- 

 age 

 Killed 



40 

 51.1 



7.0 

 23.0 



7.0 

 20.0 

 20.9 



8.0 



94.6 



100.0 



72.2 



84 



95.8 

 90.4 



Average, Thawed rapidly. 

 Average, Thawed slowly. , 



38.93 

 53.61 



The buds were thawed slowly by simply lifting the inner cyl- 

 inder to which they were attached and seeing that the temperature 

 was raised to four or five degrees above that to which they were low- 

 ered. In no case was it possible that the temperature could have 

 gone back to the minimum temperature recorded, and usually twelve 

 hours, sometimes slightly more, were required for the thawing. 



Enough buds were frozen to justify a positive conclusion that 

 rapid thawing does not influence the amount of killing. 



The following table gives the results of slow and rapid thawing 

 of young fruits: 



