Feb. 24, 1919 



Apple-Scald 



213 



Cold-storage men who make a practice of opening up windows and 

 doors when weather conditions will permit and allowing outside air to 

 sweep through the storage rooms for a short period of time report great 

 benefit in the way of the prevention of apple-scald. 



DELAYED STORAGE 



From a study of Tables IX and X it is evident that shifting apples 

 from a higher to a lower temperature and from a lower to a higher one 

 were not equally beneficial in scald prevention, the former always giving 

 much better results. In experiments i and 2 of Table IX there was 

 much less scald on apples stored first at 5° C. and then at 0° C. than on 

 those stored first at 0° C. and then at 5°. Also the contrast of No. 3 and 

 5 with No. 4 and 6 in A of Table X shows that there was less scald on 

 the apples stored first in cellar storage then in cold storage than on those 

 moved from cold storage to cellar storage. 



In other experiments the effect of delayed storage at higher tempera- 

 tures was tested. The results are given in Table XII. 



Table XII. — Effects of delayed storage upon apple-scald 



Ex- 

 peri- 

 ment 

 Nc. 



Ai 



A2 

 Bi 



B2 



B4 



B5 

 B6 

 B7 



Variety and package. 



Grimes apples in boxes stored 

 at Weiiatchee, Wash. 



do 



York Imperial apples from Vi- 

 enna, Va., stored in barrels at 

 Washington, D. C.b 



do 



Treatment. 



Stored at once ; in cold storage 



for 19 weeks. 



Delayed storage ^ 



To cold storage the day after 



picking. 



In shade in headed barrel for 6 

 days; then in cold storage. 



.do In Sim in headed barrel for 6 



days; tlien in cold storage. 



.do I In shade in open boxes (during 



! delay) for 6 days, then in 

 I cold storage. 



.do I In shade protected from wind 



in headed barrel for 12 days, 

 then in cold storage. 



.do In shade in unheaded barrel 



for 12 days, then in cold 

 I storage. 



.do i In shade in open boxes (during 



delay) for 12 days; then in 

 cold storage . 



Percentage of 

 scald. 



After 



17 

 weeks. 



38 



After 



26 

 weeks. 



25 



3 



52 



o During the delay the apples were held in boxes in a shaded, well-aired place. The average maximum 

 day temperature was 23° C. and the average minimum night temperature was 5° C. The apples were 

 delayed z weeks and then held in cold storage for 17 weeks. 



6 Themaximum outdoor day temperatures during the delay averaged 18.7° C, and the minimum outdoor 

 night temperature averaged 34° C. 



