328 Fruit-growing in Arid Regions 



the seed cavities do not mature fruit; they may continue 

 to develop for some time, but nearly always fall before the 

 calyx closes. In this case, fatal injury is first indicated by 

 a yellowing of the tissues about the stem end, the color 

 appearing in time to indicate whether it will pay to spray. 



When the injury ap- 

 pears only in the em- 

 bryo seed, the fruit may 

 mature without seed, 

 and may generally be 

 picked out at maturity 

 on account of its smaller 

 size. 



Pear bloom may still 

 mature fruit when 

 showing more injury 

 than the apple. The 

 whole core cavity may 

 be discolored without 

 fatal results. The type 

 of fruit from such a 



FIG. 89. Abnormal Pears, the Result of bloom is shown in 

 Injury by Frost. Figure gg (upper ^^ 



attached to spur). While abnormal in shape, it has de- 

 veloped to maturity. 



Injury to Young Fruit. The various fruits differ in 

 their ability to recover from severe freezing, and it is 

 important that the grower know what to expect. When 

 injury and discoloration are confined within the pit cavity, 

 the peach, cherry, apricot, and plum may continue to de- 

 velop until near the normal ripening period. The fruit 



