Influence of gibberellic acid on onion production-A review

Plant growth regulators are new generation agrochemicals and are expected to play an important role in overcoming the hurdles in manifestation of biological yield. Role of plant growth regulators in crop production is a well known phenomenon. Their use in crop promotes growth along the longitudinal area, number of branches, early flower initiation, fruit set and fruit quality and subsequently contributes towards higher production when applied at various concentrations. Due to this it is possible to achieve the desirable standards and norms in terms of quality for exportable production. GA₃ application brings metabolic changes that affect both quality and quantity of the desired product. It stimulates the synthesis of hydrolic enzymes which are secreted and act on starchy endosperm in turn affecting physiology of seed germination and establishment of seedlings. Gibberellic acid is considered as a tool in chemical regulation of the pattern of growth and development in plants.