Gibberellins generally have no influence on plants of normal size. Yet if a dwarf plant has gibberellins added to it, then it can grow to normal size. In the development of fruit there is also dual control by auxin and gibberellins. There are fruits that require both hormones to be set. The main time gibberellins spray is used, is on seedless grapes to make them grow further apart.
Most seeds have a high concentration of gibberellins in the embryo.
Once water is imbibed, the gibberellins are released from the embryo it tells the seed to break the dormancy and germinate. Naturally gibberellins are the key part in renewing the growth of the embryo. Ceral seedlings growth is supported by gibberellins that stimulate they synthesis of the digestive enzymes. Gibberellins stimulate the synthesis of messenger RNA coding for amylase, before the enzymes even appear. The gibberellins also work to break dormancy when growth of apical buds start growing again.