Are you sure this was ever a config option? I never remember it
IC² plants will always yield random (but weighted towards parent plants) crops on crossbreed. That won't change because of forestry.
Also, there never was such option. I'm sure of that.
Maybe in the future (whenever, if) thunderdark will change that to a more forestry-like approach of breeding. Don't expect it anytime soon though.
reed with reed yields reed with the highest chance possible. If you get wheat often its just pure luck.
Well, something could possibly be wrong, but thats something i can't answer.
Each crop has it's own internal value, and depending on where that value falls over a range determines what type of crop it is, at least it did in 1.2.5. If the reeds are already close to wheat range (AKA, already crossbread a bit/lot), then you could end up with a lot of wheat plants as the random odds just happen to have the cross breeds fall there. If they were newly planed reeds, then I can only assume you're really unlucky (or lucky, depends on opinion) or there's a bug somewhere in that mechanic. Crops have this "feature" of being really really hard to see the internal data of to see if it's a bug or just not your luck.
IC2 crops are wonderful like that. You might have spawned in a desert with only a few reeds, but suddenly you can grow every other plant and more, just from those reeds.
But i cant obtain better parametrs of specific plant with this bug.
Cause i have no idea which plant appears 
Btw does crop-matron need simple water?
But i cant obtain better parametrs of specific plant with this bug.
Cause i have no idea which plant appears
I can see why that'd be an issue 
Btw does crop-matron need simple water?
Yes, since hydration cells are impossible to renewablely generate without Gregtech/ProjectE/Tin reproducing mod, Thunderdark changed it to just use water
Ive jsut deleted all other mods.
Still same problem:
reed + reed gives everything but reed.
using crop-matron with only weed-ex
Whats wrong with me???? 
