How early can I clone?

I tried the search but didn't get anything definitive.

How early can I take clippings from new plants from seed for the purpose of force flowering them to identify sex?

lots of info on this site ,have a look ,many will say different ways ,but you can get a good idea, or look on grow faqs if it is up and running.

I have looked and looked. I know I read the answer somewhere once upon a time but still cannot find it.

At what growth level is it safe to take a clipping? As in how many nodes should it grow before I take a clone?

i dont clone off of a seedgrown plant till its about 4-5wks old, about 9-10nodes and i wouldnt clone from a branch thats less than 3"long.

some people say 4-5 some say 7-8 your choice just make sure the branches u clip r worth cloning

i came across this interesting thread on icmag the other night about bonsai mother plants. if i am understanding correctly this guy is cloning seedlings that are are 1 week old. (look at page 3 of the thread)

International Cannagraphic Magazine Forums - **DrBuds Bonsai Mum's- How To for You**