What determines female plants ability to create viable pollen through use of chemical reversal?

[GET MO]

Some strains will reverse easily and some are almost impossible to get viable pollen from. Anyone know the science behind this? I got pollen and everything with the gmo but it was unviable, what should have been a few thousand seeds I got maybe 30. Researched and seen other breeders had similar results. Wonder what could be causing it. Has anyone noticed female plants with longer or shorter flowering times needing reversed at different flower periods? Maybe different plants need different concentrations to effect them? Or maybe some dna missing strands that might allow for transformation. Would like to know the science.

 

[weedemart]

Sexual stability.

Individual from a line with strong dominance in ethylene will be hard to reverse.

This is a good sign tho.

 

[PetePrice]

A good way to see if the pollen is more viable is to put the pollen on a glass slide and add tetrazolium salt if the grains turn reddish then the pollen is viable. Some pollen needs to be ground down and is "wet" .