What role does Gibberellic acid (GA 3) play in plant growth?

Gibberellic acid (GA 3) is produced commer cially6 from cultures of the fungus Gibberetta fujikuroi as a white crystalline solid of melting point 223-235 °C. It is a plant hormone stimulating plant growth and development, is a tetracyclic di-terpenoid com pound. Gibberellic acid stimulate seed germination, trigger transitions from meristem to shoot growth, juvenile to adult leaf stage, vegetative to flowering, determines sex expression and grain development along with an interaction of different environ mental factors viz., light, temperature and water. The major site of bioactive GA 3 is stamens that influence male flower production and pedicel growth.

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