Role of Second Generation Plant Growth Regulators in Fruit Crops: A Review

Abstract

Plant growth regulators (PGRs) have long been integral to horticulture, enabling manipulation of plant development for better yield, quality, and stress resilience. With the emergence of second-generation PGRs, which include novel synthetic and naturally derived compounds, there is a renewed focus on precision growth control and environmental safety. This review discusses the classification, physiological role, application strategies, and recent advances in second-generation PGRs, particularly in fruit crops, and highlights their commercial significance, limitations, and future prospects.