Impact of Foliar Application with AminoAlexin® and a Mixture of Marvel Fertilizer with Growth Regulator (Floratone) in Physio-Biochemical Parameters of Bitter Orange Saplings (Citrus aurantium L.)

This experiment was implemented during 2021-2022 season as a factoria1 experiment (4×3) relying on (R.C.B.D.). Two factors were tested in this experiment: first factor is: Foliar application at 4 levels: (0, 1 , 2, 3) ml L-1 from a mixture of MARVEL fertilizer with plant growth regulator (FLORATONE (6 g L-1). Second factor is Foliar application at three levels of AminoAlexin® fertilizer (0, 1.5, 3) ml L-1. Results were summarized that foliar application for a combination of (MARVEL + FLORATONE) at (3 ml L-1) had a positive impact in physio-biochemical Parameters (leaf area, chlorophyll, carbohydrates, N , P) that recorded (42.24 cm² , 24.93 Spad, 33.43 , 1.36%, 0.57%) respectively. Concentration (2 ml L-1 ( caused a noticeable increase in (K, Fe,Mn) that recorded(1.48%, 167.2 mg g-1, 36.98 mg g-1) On the relay by analogy with control. Amino Alexin (3 m1 L-1) had a positive impact in physio- Biochemical Parameters (leaf area, chlorophyll, carbohydrates, N, P, K, C/N ratio, Fe, Mn) witch recorded (41.71, 26.42, 34.65, 1.40, 0.60, 1.53, 24.67, 164.2, 34.95) respectively compared to control. Double interaction effect between the two factors was significant in all physio-Biochemical Parameters compared to control.