Nirvana Blue Mystic Auto has been my highest yielder so far. It was part of my 2nd only grow, 63g grown in a 6.5l square pot inder 250w dual spec HPS with plant magic oldtimer nutes + bat guano + mollasses. Got to be honest though, despite the yield it wasn't a great end result in terms of quality, taste and smell sadly lacking this time round, potency ok though. (i grew another one previously which had a strong berry taste)
My next best yield was 35g from Dutch Passion's snowstorm II, This was far superior in quality. I'd rather have 35g's of something tasty and good looking/smelling than 63g's of average bud!
Strains i've grown so far:- Nirvana Blue Mystic - 63g
Dutch passion Snowstorm II - 35g
Barney's Farm Pineapple express - 20-28g (approx)
Auto seeds Polar Express - 20-25g (approx)
W.O.S. - Pakistan ryder - 20g
Kannabia - Hobbit - popped her head above soil and promptly died:cry:
Sweet seeds S.A.D. - severely stunted, aborted.
On my 3rd grow currently, A purple kush auto, green poison auto, AK auto, and a grape muerta. All doing fine and looking on target to hit 28 -35g's with these. I also have a candy kush auto and a chocolate skunk waiting in the wings but i'm saving these for later in the year to go in bigger pots (10l airpots) with just the 2 of them in my small tent instead of my usual 4, this is to see if yield is improved with the bigger pots and less competition for light!