What does make a plant to be male or female?

[Nikx]

What you thinkin'?

[Serpico]

dont understand the question.....

are you asking "what makes a plant male or female"???

[Nikx]

No, i was wondering if anyone here has a clue on the reaons behind male plants to become males and female plants to be females, like what does influence their sex appeal...

[vintner]

genes. Male plants can't keep their pants on, and like to show off their balls. LOL seriously, if I understand your question correctly, the answer is in the chromisomes. A plants sex is determined the day the seed it came from was poninated.
Vin

[J842P]

Genetics man. It's a powerful thing.

[DankCloset]

now the truly amazing thing about male chromisones(y-x) and the female(x-x) is that it has the ability to be A-sexual, and hermies(y &x-x) the ability is crazy. because you get seed pods jutting out of flowers. that and it really if u think about it. makes the plant never die. pots goin nowhere. hey i planted 4 seeds, and got 4 females, if u keep the stress and temperature down, better odds of females.

[Sonny Cheeba]

Originally Posted by dankcloset

now the truly amazing thing about male chromisones(y-x) and the female(x-x) is that it has the ability to be A-sexual, and hermies(y &x-x) the ability is crazy. because you get seed pods jutting out of flowers. that and it really if u think about it. makes the plant never die. pots goin nowhere. hey i planted 4 seeds, and got 4 females, if u keep the stress and temperature down, better odds of females.

i agree on that. doing things just right will give you a high femaler ratio. It works, believe me. I ordered some seeds from an online source and I had gotten 8 females out of 10! Unfortunately my dog dug up two from the pots,,,that bitch! lol

[DankCloset]

mine were bag seed!

[Nikx]

HI, i've been away for some time... actually i got busted by the cops - somehow they found out i was growing and suprised me outside the house.

I've bought seeds recently, but i cancelled my order later on by phone... so i don't think i will grow in the near years, unless i move to Amsterdam!

I'd like to give you some contribution still, don't know if it actually the thing but - as i was growing my second vegatable cycle plants, i put the 400hps around 3.5ft above the plants - pretty high - out of 10 plants during vegetable stage 9 turned out to be females, the last one was still too small to show sex.

That was what i've been questioning here.
Try it if you want... maybe there's something into it... unfortenatly i won't do so no more.

Good luck everyone on their grows, and have a good life generally.
Nik.

[vintner]

So what you guys are sayin' is that a seed is hermi w/the potential to be either male or female? I would personally like more input/opinions on this before I change my prior opinion that a seeds sex is determined on the day it's polinated, and from that day forward can no longer change the sex of the plant it grows into. The nature of male reproducive cell (pollin, or sperm if you will) in any species is that they either carry the x or y half of the male x-y chromizome. That's why the male determins the sex of the off spring. A single grain of pollen from a male plant can only carry the x OR y half of the chromizome, not both, not half of each. So that's why I say that IMHO the sex of a seed is determined on the day the seed was polinated, and nothing we as growers do can induce more male or female plants. NOW, maybe through inbreeding/selective breeding, they've grown female plants that are more accepting of the x chomizome than the y, or male plants that naturally produce more viable x than y chromizomes, I don't know, but I still say that it all comes down to genetics.
Vin

[vintner]

Growing slow: Don't think I don't believe you, or that I'm being sarcastic. If you say that you've consistantly gotten 80% female to male ratio, I'd like to know what your T/H/and stress ratios are so I can duplicate them as best I can. I wouldn't mind those percentages myself. I'm a newbie, so all I know about the genetics of pot is what I learned in basic college biology, maybe for all I know the genetics of MJ are totally different than the majority of other plants. Hell, there are several verieties of fish, lizards, and even one species of bird that can change sex based on the general population, so who knows...
Vin

[vintner]

Thanks man, I'll give that a shot. What method do you use to keep your humidity that high?
Thanks Vin

[DankCloset]

you have definatly gotta understand one thing vin, each grow is going to be differant, and to get technical, there really is no way to make all female or most female, its luck of the draw and optimal growing conditions that make it up.

[GreenThumbsUp]

My understanding is that MJ, being dioecious (spelling?), does not have 100% pre-determined male or female flowers in the seed. Granted, the seed (genes) holds factors that , upon germination, increases the probability that male, female, or both types of flowers will be expressed. Then, as the seed germinates and lives in its veg stage, environmental factors either increase the base probabilities of flower types or decrease the probability. In flowering when hormones start seriously moving, the plant bathes cells in hormones that make them grow into either stamen or pistil bearing flowers. In some plants, you get cells bathed in both, and end up with both (hermes). Genetics AND environment contribute to the sex. There are many posts here that give tips and tricks to help you manage the environmental factors and increase the likelihood that your plant wants to make female flowers instead of male flowers. (i.e. temp, nutrients, ph, etc)

Note: According to Ed Rosenthal, in his book Closet Cultivator, there are some indica varieties that will produce random male flowers at the very end of ripening. Ed considers this a sign that the bud is ripe. (i.e. You'll see a few male flowers starting on nugget tips, but the bud is already 50% to 80% ripe is my applied interpretation). I have a plant that is doing just this, and truly it worries me not at all because by the time the male parts pop open (there may be 1 or 2 on a 6" cola one even has 3!), I'll be picking the bud in 5 days, so even if a flower gets pollinated, it won't live long enough to worry about it getting seedladen.