Apr. 14,1923 Internal Browning of the Yellow Newtown Apple 
173 
growing months was nearly normal, the severity of the browning was 
less. In 1912, 1913, 1917, and 1918, years of higher mean temperature 
for the months of rapid growth, there was no browning in the commercial 
storage plants. Comparing the temperature records of the Pajaro Val, 
ley with those of Rogue River Valley, Oreg., and Albemarle County, Va.- 
it is found that these regions have a mean temperature of 2.8° and 6.2® 
C. higher, respectively, than that of the Pajaro Valley. 
Results which further confirm this relation of orchard temperature to 
the browning were obtained by collecting fruit from well-exposed and 
from shaded portions of the tree. Two lots of fruit were collected from 
the upper southwest periphery of two trees where the fruit received the 
maximum effect of the sun’s rays, while two other lots were picked from 
the lower north, shaded portion of the same trees where the fruit was 
continuously in the shade. These lots were stored side by side at 0° C* 
The results of this experiment are given in Table V. 
Tabi,E V .—Effect of exposure of the fruit on the tree upon internal browning 
Conditioti of fruit at end of storage period. 
Location of fruit on tree. 
Nor¬ 
mal. 
Trace. 
Slight. 
Mod¬ 
erate. 
Severe. 
Well exposed, on upper southwest periphery of the 
tree. 
Per 
cent.' 
35 
15 
Per 
cent. 
55 
50 
Per 
cent. 
10 
Per 
cent. 
0 
Per 
cent. 
0 
Shaded, on lower xiorth side of the tree. 
25 
10 
0 
These figures show that the quantity of normal fruit from the well- 
exposed portions was 20 per cent greater than that obtained from the 
shaded portions of the same trees. While no records were taken with 
regard to the temperature of the fruit at the different exposures, it is safe 
