Some excerpts from a large article on cannabis breeding:
"
The photoperiod could be the input that, when not understood properly, can be the difference in pinnacle inflorescences or an expensive waste of effort. No other facet of cannabis growing affects hormone production more than the solar cycles. Inconsistency in photoperiods or interruptions in sleep schedule will trigger unwanted stresses such as asexual seeding or apomixis specifically though agamospermy. [17]"
"To bring a desirable phenotype to seed, inducing apomixis in one of two methods can be used to limit the amount of variability in the F1 population. One technique involves selecting a single candidate and transforming her into a male pollinator by deliberately disturbing the critical photoperiod and causing a hermaphroditic change. In a wild setting, this survival mechanism engages in the event of a shortened flowering time or unsuccessful fertilization. This allows the cannabis plant to produce a progeny regardless of the situation given the chance to have a competent vegetative phase. This technique exploits this mechanism in a controlled manner to create a germplasm. After selecting an individual plant to induce apomixis, this individual can be used to pollinate a single female to produce a progeny that will express favorable traits in a narrower variability within that phenotype."
Cannabis is a hot topic in many respects today. The cannabis industry is among the fastest growing sectors in our economy. According to an article from Forbes Magazine in December 2016 [1], the industry’s projected growth could be as large as 700% by 2020, a figure that only captures the...
terpenesandtesting.com
Some of the sources state Apomixis mostly occurs in dicot flowering plants of "the rosy type". Well, that's not a proof but close enough to warrant attention.
They say it's also affected by polyploidity and this is something that has been used with cannabis for some time now.
For example, California-based Dark-Heart Industries soon sell triploid drug-Cannabis that is infertile to pollenization and these seeds stem from, at least, 1 polyploid parent.
darkheartnursery.com