Julie, I did a simple Google search for "Ed Murray dip tet Fertile" and came up with this post on Tinkers where Maurice helps explain ... And they talk about Lights of Detroit, which I had forgotten about.
http://forums.tinkersgardens.c...
This is getting a little off the original topic, but, it does fall under how a daylily can be registered as a tet, yet have a dip as a parent, etc. John Benz worked quite a bit with Ed Murray, if I recall, as I seem to remember he was one of the ones on the AHS Robin discussing this many, many years ago.
I never knew anyone converted Ed Murray, as I thought the original was considered as a "triploid" and would pollinate tets. My terminology on that might not be right... It was many years ago. But I am sure I was using mine with tets, and I did not have a conversion. I only remember getting one seedling out of it though.
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Edited to add..
I found this page... Scroll down a couple posts... Where John Benz talks about Ed Murray not being a triploid, and about the "conversions" and his testing of them.
http://mail.mydaylilies.com/fo...