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Visual Reference Library - Wheat
 W-4.2 Germ Damage (Bleach Method)

Portion for Analysis: Approximately 15 grams


Kernels and pieces of wheat which, after bleaching, have discolored germs that are as dark or darker than shown.


Discolored germs that do not meet the minimum coverage requirement may be considered damage provided the degree of discoloration is greater than shown and the overall "prorated" appearance meets the minimum coverage and intensity level depicted. For example, when the degree of discoloration is twice that shown, only half of the germ area needs to be discolored.


Note: Seed coats that occasionally remain attached to the germ area after bleaching must be carefully removed. Scraping too deeply can destroy the evidence of damage and cause non-uniformity of interpretation.

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Last updated November 2009