18 
BULLETIN" 1434, U. S. DEPARTMENT OF AGRICULTURE 
ton Experiment Farm, Rosslyn, Va., at a uniform temperature of 32° 
F., while the other was kept in a greenhouse as a check. The berries 
were held from November 13, 1922 7 to January 20, 1923, when the 
percentage of rot was determined. The berries kept in cold storage 
showed 3 per cent and those in the greenhouse 10 per cent of rot. 
The berries used in this test, as the check showed, were of good keep- 
ing quality. 
A box of McFarlin cranberries grown at Long Beach, Wash., and 
placed in a commercial cold-storage house in Los Angeles, Calif., by 
H. S. Gane in the fall of 1921 was examined by the writer in Novem- 
ber, 1922. It was not learned at what temperature this house was 
kept, and nothing is known of the condition of the berries when 
placed in storage. The berries were practically 100 per cent rotted 
when examined and were overgrown with molds, Peniciliium and 
Fusicoccum being very much in evidence. 
In 1923 cold storage was tried experimentally on a scale large 
enough to give an indication of what might be expected from it com- 
mercially. The end-rot fungus is known to grow slightly even at 
32° F., so the temperature would have to be kept low to prevent the 
development of this organism. On the other hand, it would be diffi- 
cult to find commercial storehouses in which the temperature is held 
consistently at or near 32° F. Bearing these two facts in mind, the 
cold-storage plant selected as furnishing the most favorable temper- 
ature conditions among the several which were kindly placed at the 
disposal of the writer was the meat storage house of Swift & Co., in 
Astoria, Oreg. The temperature in tins warehouse is held at an 
average of 32° to 34° F. 3 
Table 10. — Percentage of rot developing in cranberries in cold-storage test in 1923 
[All samples were screened Oct. 26 to 31. Check lots were kept in unheated warehouse at Clatsop, 
Oreg., and other lots placed in cold storage Nov. 1] 
Date examined 
McFarlin, 
Bloomer bog, 
not sprayed 
McFarlin, 
Morse bog, 
sprayed 
Bennett, 
Pilkington bog, 
sprayed 
Cape Cod 
Beauty, 
Pugh bog, 
sprayed 
Centennial, 
Pugh bog, 
sprayed 
Cold 
storage 
Check 
Cold 
storage 
Check 
Cold 
storage 
Check 
Cold 
storage 
Check 
Cold 
storage 
Check 
January 14, 1924 
April 26, 1924 
16 
67 
87 
25 
78 
4 
7 
8 
33 
62 
18 
75~ 
13 
30 
24 
58 
16 
45 
21 
64 
August 8, 11-24 
31 
64 
For these tests, McFarlin cranberries were selected from sprayed 
and unsprayed bogs and Bennett Jumbo, Cape Cod Beauty, and 
Centennial from sprayed bogs, the latter three being considered 
comparatively poor keeping varieties. Two standard shipping boxes 
(in the case of Bennett and unsprayed McFarlin three boxes) of each 
were kept in cold storage, while an equal number of boxes of each 
were held as checks in a cranbeiry warehouse at Clatsop, Oreg. The 
berries were screened and boxed by the growers October 26 to 31 and 
were placed in cold storage November 1. The condition of these 
benies when removed at successive intervals is shown in Table 10. 
3 The variat.ons (daily maximum and minimum) as determined bv a thermograph ncord for one week 
(Nov. 14-20) were as folLws: c4-27, 3b- 24, 36-30, S5-31, 34-30, 32-29, 38-34° F. The average daily temper- 
ature for this particuh r week was 32.2° F. The extreme daily averages were 28.5° and 36° F., respec- 
tively, and the extreme temperatures 24° and 38° F. 
