Abstract
Little is known about the response of pomegranate to the foliar application
with nutrients and gibberellic acid. A randomized complete block design
(RCBD) experiment was conducted on 40-years old Manfalouty pomegranate
trees grown on Upper Egypt. The study aims to investigate the effect of foliar
application with gibberellic acid (GA3), potassium silicate (PS), zinc sulphate
(ZS) and fetrilon compi (FC) which is a mixture of micronutrients on fruiting of
pomegranate trees. All the tested treatments significantly (P< 0.05) improved the
yield and fruit quality and reduced the fruit cracking percentage. GA3 and FC
spraying induced a 15 and 11% increase in the fruit yield and minimized the
cracking percentage by 47 and 61% compared to the control treatment, respectively. It is recommended to spray Manfalouty pomegranate trees with micronutrients, potassium silicate, or zinc sulphate twice at mid of June and August to
enhance the pomegranate yield and quality.