Yields 57 



duced fine fruit, but since they are smaller than canes of 

 the full season's growth, the yield might be less. One 

 Iowa grower reports that in two seasons' trial, blackberry 

 canes produced after pulling up all young shoots about 

 the last of June, were loaded with fine berries, while older 

 canes alongside had but few. Although such canes are 

 later it does not necessarily follow that they are immature. 

 Starting later, when the conditions do not favor so vigor- 

 ous a growth, the wood may be firmer and its vitality 

 greater at the beginning of winter than that of the earlier 

 canes. 



YIELDS 



The average yield of red raspberries is less than that of 

 black-caps, though under exceptional conditions and in 

 some localities the reverse may be true. Estimates from 

 a number of growers, obtained by the writer a number of 

 years ago, gave an average of about 2,200 quarts to the 

 acre. Average yields in western New York, as obtained 

 by Wilson, were 1,784 quarts in 1909 and 1,351 quarts 

 in 1910. The yields in 1909 were based on returns from 

 52 acres; those in 1910 on those from 155 acres. The 

 average price received a quart was a trifle over nine cents 

 in 1909 and something over ten cents in 1910. 1 Herrick 

 and Bennett 2 place the average yield for Colorado at 

 about 4,500 quarts an acre, under irrigation, considerably 

 higher than that for black-caps. The yields are not only 

 smaller, as a rule, but the ripening period is much longer. 

 This makes the picking and marketing more expensive, 



1 Cornell Reading-Courses, Vol. II, No. 36. 



2 Colorado Expt. Station, Bulletin No. 171. 



