Tree Fruit Research & Extension Center

Cullage Assessment & Education

Quick Identification Guide to Apple Postharvest Defects & Disorders

Physiological Disorders

The Physiological Disorders section of the card set includes most the common disorders of physiological origins found during the sorting and packing of Washington apples. Bitter pit, scalds and lenticel conditions are just a few of the items presented in this section. At a later date more cards may be developed for this section which would include any emerging or reclassified disorders. For ordering information visit the Order Information section of the Introduction. The cards shown on this site are slightly modified to accomodate web formatting. Figures may appear fragmented in some browsers. Please report viewing problems here. Any reproduction of the card images or content without permission is in violation of WSU Copyright policies.

 

 

 

PHYSIOLOGICAL: Braeburn Browning   

Braeburn Browning

The apple variety Braeburn is susceptible to an internal disorder called Braeburn Browning Disorder (BBD). At harvest, this disorder has the appearance of light to dark brown areas similar in nature to watercore, but occurring without pattern anywhere in the flesh. Symptoms of BBD developing in storage include tissue browning resembling the internal cavities caused by CO2 injury. However, BBD is thought to be related to late harvest.

Figure 1: Sliced Braeburn apples show the progression of severity of BBD.

 

 

 

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