To make stored food available for germination,with which hormone should a seed be treated?

The hormone which can replace long days and low temperature requirement for flowering in some plants is

Specific property attributed to $GA$ is

$A$ : Gibberellic acid increases the yield of malt from barley grain.
$R$ : Gibberellins stimulate the synthesis of amylase,protease and other hydrolytic enzymes for mobilisation of reserve food.

Application of which hormone causes the production of male flowers on female plants?

$E$. Kurosawa discovered: