You make gynoecious seeds by reversing the sexual expression of a female through chemical treatments that upset the hormone system responsible for male differentiation and use her as a pollen donor.
It's been argued to death on these forums for over a decade. I'm amazed you're on page 126 of this thread and you don't even understand how they're made?
The issue is most of what I say isn't opinion, it's scientific fact.
yes mate i am on page 126 of this thread i have also read about as many pages all over the net on the subject if not more. the reason a female reverses sex is because they have the Y chromosome even if its not dominant. it can be made dominant through chemicals that block out things like copper protein cells that affect the plant ability to make hormones. its a environmental change that affects the plant on a cellular level. just like growing in a apple store will give you a higher level of females from regular seeds. you take them from the store and what you have is plants you thought were female going male.
its like this as i understand it your plant has both X,Y with fem seed you have Xy Xy giving you a over all expression of the X chromosome. because you still have the y chromosome it can be expressed as a plant determines it's sex not just from the XY chromosome but also other cells that effect hormone balance. that why a regular plant can express ether X or Y or even XY in the case of hermies because of a hormone producing balance on a genetic level.
when you make a fem seed from 2 females your doing something people have done for years (breeding by selection for females) what is a female? well as i see it it's a plant that expresses the X chromosome not one with only the X. it expresses the X because of factors on a genetic level before it even germinates. your not even breeding for the X chromosome its other genes your breeding for as well when you make fem seeds.
let's try explaining like this. why do plants hermie you have read at least 126 page's on hermies here you should have a idea? it's a hormone imbalance kind of like your plant having a switch when it's turned on it can make certain proteins to a high level and express X chromosome and you have a female plant with a lower level will be Y. now you have one that's just in the middle this one will expressed both X and Y it may start X then turn Y the reason it dose that is because of the environment your growing in affects how much of each protein is made.
now when you spray SN or what ever your stopping the plant making these proteins not its genes that actually make them. the result is a plant with a expression Y because of a temporary hormone imbalance but still carries all the genes that make it's original hormone levels that allowed it to express X. so through selection you have breed 2 plant that have a cellular make up to make enough of the protein that express X for the offspring to all express X. what you haven't done is breed out the Y it's still there and can be expressed.
now what if you breed a female to a plant that Hermie's? well you have your true female with a high protein level that affect hormones. you also have one that has a higher level then a male. one that was female flowered then thought its the end of the season and started shutting down after it flowered. it thinks its made its flowers for that season and is going to die because cannabis it a annual plant. its not made seeds and locks down the genes that effect hormone proteins in a effort to pollinate a near by female before it dies. so what you have is 2 plant that express X because of there genetic make up just like last time.
now let's go down the other road breeding hermies. you have a plant with a high enough hormone protein level to express X if its grown in the right environment. a little stress testing will reveal that environmental factors will easily bring it down to a level where it will not make enough to express X anymore and instead will express Y (hermie). breed 2 of these plant together and because of the amount of protein both parents make you will get mostly offspring with a protein level that can make them Hermie easy.
see as i see it you cant remove Y from the population it there in male and female cannabis plant. what the Y gene dose is slows down bottle necking imoa. i don't see fem seeds as bad if people that have them use them right and understand what they have. when people are selling them to people that don't know what they are and how they are breed. by which i am not just saying female to female plant all offspring are female.
half the people making them don't even understand that it's just a plant breed to have genes that make high levels of proteins that effect hormone production.
with a male female population thing are simple when it come to breeding you find a good male and female job done you can see with your own eyes how much protein the plants have pretty easily. with fems it's not quite that easy and you can also create inbreeding problem easily. you have the ability to self inbreed something you cant with regular seed's which can give other problem if abused.
also can i just say to others on here please don't give bad comments to GITT on this thread. i consider this site to be one where people can be civil with each other. what happens with bad apple? if you put one with others that are fresh it will make them all bad. some with people and its been happening to much lately here. time to rise above it folks. next time the bad apple comes rise above it and don't follow suit. it's time we all made mns forum a nice place to be again. pass on a smile there contagious to you know. try it next time you walk past someone give them a big smile and watch it pass on.
have a nice day GITT here a big smile for you pass it on for me.
see i think your entitled to your opinion to just like everyone else. even agree in past with it just not all off it but that fine by me.
your living in your own little world. yes there's no such thing as Xy. but i was trying to explain some thing i don't know how to wright down sorry you didn't understand it.