bannanas release a hormone thats found in higher quantities in females (ethylene)
here i stole this.....
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.
from here
http://www.cannabis-seed-banks.com/percentage-females.html[/QUOTE
HEY nice info, i think it's more about the stuff im doing rather than the seeds. but i'll give it a go all the same. XD