Hey Revanche, sorry about my crankiness last night... My girlfriend just had a baby, and sleep has been lacking in my world... LOL
Sorry I was a cranky person, I was wrong to take it out on you.

Anyway, here's the site about the topic of ethylene gas and feminization of cannabis seeds that I thought you might find interesting. Here's the link:

Robert A. Nelson: Hemp Husbandry ~ Botany & Breeding (Ch 4)

And here's the part in the chapter that's relevant:

"Treatment of hempseed with ethylene gas will increase the resulting number of female plants by about 50%. Ethylene is produced by certain plants (i.e., bananas, cucumbers and melons), and these can be used to treat hempseed in a simple manner. About two weeks before you plan to sprout the seeds, place them in a paper bag or envelope and put that in a plastic bag with the peels of a ripening banana or cucumber. Replace the peels after a couple of days, and change the bags to prevent mold.
Hempseed can be feminized while they are forming on the plant. Fruit peels are spread around the area for two weeks before the plants enter the flowering phase. Remove the skins when the plants begin to flower. Otherwise, treatment with Etephon will accomplish the same effect."

Check out that site, actually the whole thing is chock-full of good scientific information.
Hope it helps!

Peace, and good luck in your quest! :rastasmoke:
dooobster Reviewed by dooobster on . Ethylene to produce females If ethylene is a known plant hormone to determine sex in cannabis couldn't I put a bunch of ethylene producing fruits near my plants and hope they all turn female (When they are from seed) that's probably not enough Ethylene what if you theoretically had a Ethylene spray and you sprayed your plants? Rating: 5