Effect of Combined-Stimulants and Phenylalanine on Growth, Yield, Constituents, and Antioxidant Activity of Celery Leaves

Maher HS Al-Mohammad*
Department of Field Crops, Agriculture College, Al-Qasim Green University, Iraq
*Corresponding Author: Maher H.S. Al-Mohammad, Department of Field Crops, Agriculture College, Al-Qasim Green University, Iraq.

Published: June 20, 2023

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Abstract  

     Experiment was conducted during agricultural season 2022-2023 to study the effect of spraying Combined-Stimulants (contain Kinetin 0.05%, GA3 0.001% and IBA 0.001%) at a concentration 0, 1 and 2 ml.L^-1 and amino acid Phenylalanine at a concentration 25 and 50 gm.L^-1 and their combinations on some parameters of growth, yield and antioxidant compounds and activities of celery leaves at 2^st cuts, treatments were distributed in a factorial experiment according to randomized complete block design (R.C.B.D) with three replicates, and means were compared according with least significant difference test (L.S.D) at probability level 0.05.

     The results showed a significant superiority of spraying 2 ml.L^-1 combined-Stimulants + 100 mg.L^-1 Phenylalanine at 1cut on leaves No., branch No., leaves content of chlorophyll pigments, dry matter, leaves oil, and fresh yield of leaves per unit area. While, treat of spraying 2 ml.L^-1 combined-Stimulants + 50 mg.L^-1 Phenylalanine on 2cut was suggested significantly superior on leaves content of ascorbic acid, total tannins, total flavonoids, total phenols, free radical scavenging activity and antioxidant activity reached 13.8 mg.100g FW, 1.85 mg.TAN/g DW, 4.22 mg.RUT/g DW, 22.8 mg.GAE/g DW, 80.2 mg.ASC/g DW and 50.2% respectively.

Keywords: celery; Combined-Stimulants; Phenylalanine; Oxidative Activity