The photo is of V03-50-1 a 3W-OOY. It is a backcross of Chehalem x Random Event.
I have always been attracted to ‘Daviot’ 2W-OOY and flowers of that color. I find the dark corona and bright yellow rim a very pleasant combination. Sid DuBose raised ‘Random Event’ which was a clear step forward in terms of color and form. I have used Sid’s ‘Random Event’ as a parent many times. Two of the progeny that I have raised from it are ‘Tahoma’, and ‘Chehalem’. The pictured seedling is from line breeding. In this case it was line bred by putting its parent (Random Event) back on to it.
Some seem to shy away from line breeding possibly due to a concern for “inbreeding depression”. In humans, hemophilia may manifest itself by inbreeding. From a daffodil breeding standpoint, line breeding can be used as a conscious tool to help intensify attributes and “set” certain characteristics. In a few cases, I have now line bred daffodils through three generations and have never seen any reduction in vigor or health. I have also read that one single “outcross” of an inbred line to just about any non-related flower can cure inbreeding depression.
It seems to me that line breeding should be in every hybridizers breeding “toolbox” or bag of tricks. Probably it should be used judiciously and perhaps not for more than four or five generations continuously. As long as one is vigilant in carefully observing the progeny, it seems quite a useful strategy.
Steve