Funtcas3
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me and motherlode were chatting about this. is an inbred backcross also an F2?
same goes with bx2 and bx3?
Bx2 and Bx3 would be putting the each future generation of offspring back to the original mother plant. F2 F3 F4 would be breeding each future generation with itself ie. putting an f2 to another f2 would make an f3 and so on. Now putting say an F5 to an F2 would still be make an f3 if im not mistaken....but it may be considered a bx....thats where the grey area comes in.
most of the time you will see the term IX in a line after a back cross has taken place.