Paclobutrazol 23% SC is one of the extensively used plant growth regulators used especially in mango fruit. Primarily, the role of paclobutrazol is to inhibit gibberellin synthesis and promote flowering and fruiting. Thus, the vegetative growth reduces and the assimilates are transferred to reproductive organs and the yield potential increases.
Paclobutrazol (PBZ) acts by inhibiting gibberellin biosynthesis, a plant hormone responsible for stem elongation and vegetative growth. By blocking this pathway, it reduces shoot growth and redirects plant energy and assimilates toward flowering and fruit development. It also enhances carbohydrate accumulation and chlorophyll content, improving photosynthesis efficiency. The result is compact plant growth, early and uniform flowering, and improved fruit size, color, and yield quality, particularly in perennial fruit crops like mango.
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