I iften question about environment of the mother plant. The males have no say in the matter.
However, pending the NEED to reproduce in harsh conditions, the predisposition of the seeds would be determined by the mother plant.
In other words, ideal conditions would produce 50/50.
As the environmental conditions get less favourable, there is a greater need for more females in the next generation.
We see this phenomenon in human beings as well as the animale kingdom.
Biology in the plant world would kinna dictate the same strategy of survival.
Well, that's not exactly true either,... Here's a couple examples: Peyote Purple, never offered as a fem' because this line is known for producing mostly females, and a local friends Lambsbread (from the home country confirmed, but clearly a hybrid, not a true landrace equatorial Sativa or it'd never finish where I live!); this one I have sent to several mates, 2 breeders and both struggled to get a good male to use for repro's and crosses...
The "stressed" mother in your example above, does not impart any bias toward sex ratio's, at least not that I've ever heard... The stress occurring with her
at the time may make her toss nanners (in-bud male flowers) or if early enough, trigger full-on hermie male flowers found at the node junctions. It's pretty rare to see complete male flowers in a female bud, the nanners are called that because of they malformed male parts, but the stamen's can still make pollen,...
Otherwise, the various "hints" listed above, for whatever reason (if any other than just a quirk of physiology), are mitigating factors for shifting ratio's... Immaturity means sex hasn't manifested yet, and as you see there's a window in time that seems to be a strong influencer on this. It seems the plant can overcome it's "technical" sex.
** (this makes me think of crocodilians and egg T during incubation affecting sex ratios; here's a vertebrate who egg's can range from all female to all male between a certain temp range, with a mix showing in between.. Is sex set yet even in their case? Clearly not, but it begs the question that at the time of laying, are the eggs chromosomally sex determined, but capable of shifting? Turns out it is...
this brief article can explain further if folks are interested. )
---> It must be something similar to this in cannabis... think genotypic sex vs. phenotypic sex.... Now, think about what's happening in a sex reversal on part of a female plant (not the entire plant) to get pollen for making fem's! Here we have all XX chromosome pollen,....
Doesn't it depend on:
X+X can only produce females regardless of stressors (function can change but any seeds will still be X+X)
or X+Y (non feminised) and form & function are set but potentially alterable through external circumstances/stressors.
??
So we need a new category:
No, sex is predetermined, but the plant has right to self determination.
Just like us.
Mate, part of your answer is above,...and while the supposition that it's
theoretically not possible to get males from fem' seeds, it's 100% wrong because it happens, rarely, but it does! Something else is in play here obviously, more complex than we are delving into here... As a biologist I can tell you that time and time again,. Mother Nature has work-arounds to her "rules"! ... A "genetic survival instinct", a "safety switch", whatever you call it, it's in regular operation out there... That lizard parthenogenesis I referred to, comes from an isolated population of lizards with no males... this trick occurs in a several other animal groups as well...
