Psychedelicraft seeds do not drop the correct products. Instead of the plant's products, it's actually dropping an item copy of the plant's tile entity.

I've already reported this to the author of psychedelicraft (Ivorforce/Psychedelicraft#6), he is registering his seeds as seed, but instead of registering his fruits as crop he registers his crops.
Should be fixed in a newer version of the mod.
If you can't wait, use Minetweaker to change the oredict tags.