Response of Kumquat (Fortunella margarita) Transplants to Foliar Spray with Bio-stimulator and GA3

Abstract

Abstract The experiment was conducted in one of the private orchards at Ramadi district, Anbar governorate for two seasons (2019 and 2020) with the objective to observe the effect of spraying kumquat transplants with age 2 years by bio-stimulator “Grow Amine “and gibberellic acid (GA3) on some vegetative characteristics and leaf mineral content. Bio-stimulator spray included control (distilled water only), 0.5, 0.75, and 1gm.l−1, on the other hand, spraying GA3 included, spray with distilled water served as (control), 15 and 20 mg.l−1. Spray bio-stimulator and GA3 had a significant effect in most of the vegetative traits and N, P, K leaf content compared to the control, bio-stimulator with 1gm.l−1 and GA3with 20 mg.l−1 had achieved the highest value for all parameters.