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BULLETIN NO. 161 



very rare that a tree has so few buds that it cannot lose one half 

 of them and yet mature an average crop in the fall." (n). 



Table II. Temperatures which buds in Cache Valley Experienced in the 

 Spring of 1916 and the per cent Killed before the Fatal Freeze Came. 



Table III. Yield of Different Varieties of Cherries in 1914 after they 

 had been Subjected to a Temperature of 26 deg. F. 



It will be noticed from the figures in Table II that all the 

 fruits mentioned except peaches can stand two or three freezes 

 as low as 25 F., and still enough buds will remain uninjured 

 to produce a normal crop. It must be kept in mind that all buds 

 do not freeze at the same temperature, Part of this difference 

 is due to difference in hardiness of the buds. They are also 

 in different stages of development. . 



"The temperatures which will kill about 50 per cent of the 

 buds of the Elberta peach are as follows : when they are slightly 

 swollen, 14o F. ; when well swollen, 18 F. ; when they are show- 

 ing pink, 24o F. ; when in full bloom, 25o F. ; and when the fruit 

 is setting, 28o F. (o)." For data on other fruits see Utah Sta- 

 tion Bulletin No. 151. 



(n). Utah Bulletin No. 151-^West and Edlefsen, 1917, p. 19. 

 (o). Utah Station Bulletin 151, 1917 West and Edlefsen, p. 22. 



