GA4+7is a mixture ofGibberellic Acid(GA4) andGibbberellic Acid (GA7).GA4+7 is a necessary growth regulator for plants.GA4+7is used to reduce russetting in apples, increase the fruit set in pears, and increase the germination and yield of celery.GA4+7is briefly applied to the production of apple. The roles are fruit thinning, changing fruit shape and size, increasing weight of single fruit, thickening skin and prolonging the storage period.The formulation ofGA4+7 is being used to induce fruit elongation and to increase the size and quality.