The Role of Salicylic Acid in Mitigating the Adverse Effects of Chilling Stress on “Seddik” Mango Transplants

Salicylic acid (SA) was sprayed on “Seddik” mango transplants at concentrations of 0, 0.5, 1, and 1.5 mM. Then, the were subjected to 72 h chilling stress 4 ± 1 °C, followed by a six-day recovery under greenhouse conditions. Untreated exposed represented positive control, while those not negative control. SA-pretreated compared controls, evaluating physiological biochemical changes. The SA concentration mM L?1 most efficient in mitigating injury (CI) maintaining integrity leaves’ cell membrane minimizing electrolyte leakage (EL), specifically after six days recovery. increased photosynthetic pigment content, total sugar 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity decreased proline phenolic content transplants’ leaves. After exposure stress, antioxidant enzymes’ internal activities chilled improved, especially sixth day recovery, control; nearly attained normal growth levels. Thus, can protect plants against adverse effects stress.