Which enzyme is synthesized by gibberellins to break seed dormancy in wheat and barley?

The number of gibberellins known till now is

Gibberellic acid has been successfully used to induce flowering:

The phytohormone that induces cell elongation is known to be produced by a fungus. The asexual stage of this fungus is called

$A$ phytohormone,which increases the production of starch hydrolyzing enzymes during the germination of maize seeds,is employed for the following:

It promotes bolting in beet,cabbages and many plants with rosette habit.