My first question is if anybody here knows if sex is pre-determined or if it varies depending on the environment conditions? My other question is when cloning, do you take cuttings off of the node, or off of the main stem?

well the most I know is they SAY that if a plant is stressed a lot during the vegetative stage it's chances of being female are greater.just what I heard other than that I thinks it's a waiting game and you have to wait till flowering

And I beleive when cloning you cut off the top and let sit in water till it grows roots and then plant in soil

the sex of a plant is in the genetics of the seed before it ever sprouts.

So is there any way to tell by looking at the seed or what?

well well, noob talk...

stress will not produce more female, in worst case it plainly kill the plant! lots of stress will not produce female, it actually can push a plant into losing it sex, becoming a hermaphrodite, which is a freakin nightmare to a good grower!

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keep the thumb green and the gun oiled, !

Cloning:
for cloning purpose cuttings are taken of an plant, this plant should be not in flower as this harshly reduce the chance of a successful clone to grow. this is therefore used during the vegging state of the plant and cuttings for cloning should be young shots of the plant since the have the highest success rate for a good clone to grow off.

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keep the thumb green and the gun oiled, !

the sex of a pant is determent thru flowering it, means to cut the light cycle back to 12/12...
smart growers use for this a clone of the plant in question instead of the plant itself to get a early answer to this without wasting a plant nor precious time...

__________________
keep the thumb green and the gun oiled, !

a plant is male, female or hermie from seed. u cant alter its genetics after that

You guys, would you be so kind and read the 101s on growing first before spamming this forum! damn it, all your questions are answered in the stickies of this noob section... do some reading and learning first before you start a tread like this and stop the BS if you know nothing!

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keep the thumb green and the gun oiled, !