[Tri-Hybrid F1 crossings] General experiences in the consistency of this cross

I'm wondering if characteristics that had been very uniform and common to both sides of the parental crossings may show up in the offspring? in example the compact size of a squat & stout indica combined with a dwarf autoflower will typically produce small sized plants unless genes for larger size were previously hidden, correct?

I understand that it is not presently realistic to have fields and fields required for the follow-up of selections for the stabilization of multiple desired traits into one.

To be clear, I'm interested in a deeply broad and vigorous genetic base but with certain common characteristics presently uniform. It may take further generations of inbreeding and variably it may just be a mutt but will it not become a stabilized mutt, limited to as such by the size of the generational selections taking place?

Do you understand what i am getting at? They are only 3 distinct varietals, two of them may already have compact genes stabilized on both sides of the lines though dwarfing of the autoflower may just be a result thereof. I've heard that depending on the parental source autoflower genetics may become apparent at F3 although i do not know the process of stabilization for that sort of trait, the example in the first post reflects this especially as breeding can be very time consuming.


Alternatively, how can one reasonably go about creating a base for subsequent selection with this in mind, what are the boundaries? This is not strictly from within the basement and small size with early finish times likely may mean greater generational sizes and less time expenditure. It may even be possible (carefully) for natural selection to gradually find the autoflower genetics through earlier finishing times should it be present.
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