Visual Reference Library - Soybean
SB-Mottled or Stained (Fungus)
EXPLANATION: Soybeans with pink or purple seed coats shall be considered purple mottled or stained. This discoloration is caused by the growth of a fungus and may cover all or part of the kernel. Graded lots of soybeans meeting the criteria for purple mottled or stained are to be qualified on the pan ticket and certificate with he special grade designation "Purple Mottled or Stained".
Last updated July 2009