Undoubtedly, some of the reasons for such a high percentage of repeat bloom 

 of spurs bearing in 1956 were the light crop in 1955 and conditions favorable 

 for flower bud development. 



With many varieties, the same spur often bears fruit only every other year 

 or may go two or three years without bearing. However, if the blossoms fail to 

 set because of frost, lack of pollination, low vigor of the tree, or if the 

 blossoms are intentionally removed these spurs may blossom again the next year. 

 Spurs on annual bearing varieties such as Cortland and Mcintosh are more apt to 

 bloom in successive years than those on varietites like Baldwin and Early Mcintosh 

 which are biennial. 



---W. J. Lord 



I I I I I I I I I I I I I I I I 



THINKING ABOUT C.A. APPLE STORAGE CONSTRUCTION? 

 HERE'S WHAT TO CONSIDER. 



Controlled atmosphere (C.A.) storage construction is complex. If improperly 

 carried out, serious operational problems may result. Careful planning, quality 

 materials, and good workmanship will produce satisfactory results. Here's what 

 to consider in planning. 



Space Requirements - Space must be provided for the crop; grading and pack- 

 ing; equipment, including the refrigeration compressor, the carboa dioxide scrubber, 

 and the breather bag; a loading ramp, and in some cases sales. The amount of 

 space allotted to each of the above will depend on the total capacity of the 

 storage and how it is tied into the remainder of the regular refrigerated fruit 

 storage. In making allowance for storage space, use 2.5 cubic feet per box of 

 apples. This figure includes space for duct work and proper stacking away from 

 walls, ceiling and floor. 



Refrigeration - In order to secure the maximum storage life of the apple 

 with C.A., each individual room should be loaded in approximately 10 days. This 

 will determine the minimum daily loading rate. Refrigeration capacity must be 

 enough to accommodate this daily apple cooling load; the cooling load due to 

 the heat of respiration of the apples already stored; the cooling load due to 

 the heat transmitted through the inslutated walls, ceiling, and floor; and the 

 cooling load due to the individuals working in the storage, the light, motors, 

 and infiltration through the door. Electrical power for compressor motors 

 larger than 7 hp. should preferably be 3 pliase. If water is available in 

 abundance and cheap, a water cooled condenser is recommended. If water is scarce 

 and the tonnage of the unit is over 5, then an evaporative condenser should be 

 used. In rare cases only, should appreciable tonnage be installed using small 

 air cooled condensers mounted directly with the compressor. In such cases, if 

 water is so scarce as to rule out an evaporative condenser, then a remote air 



