INFLUENCE OF PROHEXADIONE-CALCIUM ON TEMPERATE FRUITCROPS – A REVIEWManmohan Lal, Yachna Sood, Harvinder Singh, Amit Kumar, Ab Waheed Wani and Sanjay Kumar
Plant growth retardants have great potential to maintain a balance between vegetative and reproductivegrowth of the plants. Prohexadione-calcium is reported as a novel plant growth retardant that inhibits latestages of gibberellins (GAs) biosynthesis in plants. It is emerged as one of an important management toolthat an orchardist has available to control vegetative growth in plants and can enhance flowering and fruitquality. Currently, prohexadione-calcium is considered as a reduced risk compound, since it exhibitsnegligible toxicological effects and has been reported to degrade in higher plants with a halflife of a fewweeks and in soil with a halflife of less than a week. The available literature on the effect of Prohexadione-calciumon vegetative growth, fruit set, fruit yield, fruit quality and return bloom have been reviewed inthis paper.