314 



The Principles of Fruit-growing 



dition of the plants. We have already seen, (page 308) 

 that at Ithaca, New York, fruits were able to endure 

 the temperature at 18, even when the buds were well 

 swollen. Hammon gives the following figures at which 

 plants are liable to injury from frosts, compiled from 

 information received from horticulturists throughout the 

 entire Pacific coast. Probably some of them are too high. 

 The temperatures are as nearly as possible those in con- 

 tact with the plant itself: 



*18 ripe, 24 green. f26 ripe, 29 green. 



Howard (Circ. No. 35, Mo. Exp. Sta.) gives the follow- 

 ing temperatures injurious to peaches: "Fully dormant 

 peach buds can stand 8 or 9 below zero. When they are 

 appreciably swollen, zero is the danger-point. When the 

 buds are showing pink they can stand 15 above zero. 

 When the buds are almost open, 25 is the danger-point. 



