What two specific fruits hybridize to create the loganberry?

Answer

Red raspberry and blackberry

The loganberry is explicitly defined as a deliberate hybrid resulting from crossing the common red raspberry with the sturdy blackberry. This controlled crossbreeding process was intended to combine favorable characteristics from both parent fruits. This heritage accounts for the loganberry's unique profile, often exhibiting a tartness derived from the inherent acidity profiles of its progenitors, setting it apart from the inherent sweetness typically associated with a pure raspberry.

What two specific fruits hybridize to create the loganberry?
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