Effect of foliar bio-fertilization on growth and biochemical parameters of olive trees at flowering. (8th November 2018)

• Record Type: Journal Article
• Authors: Dabbaghi, Olfa; Tekaya, Meriem; M'barki, Naouraz; Ouled ali, Sarra; Öden, Sevgi; Mezghani, Mouna Aïachi; Attia, Faouzi; Labidi, Foued; Prinsen, Els; Hammami, Mohamed; Mechri, Beligh
• Is Part Of: Journal of plant nutrition. Volume 41:Number 18(2018)
• Page Start: 2281
• Page End: 2297
• Publication Date: 2018-11-08
• Subjects: biometric parameters -- flowering -- foliar fertilization -- mineral elements -- phenolic compounds; Plants -- Nutrition -- Periodicals; Plants -- Effect of minerals on -- Periodicals; Deficiency diseases in plants -- Periodicals; 575.76
• DOI: 10.1080/01904167.2018.1500592
• Languages: English
• ISSNs: 0190-4167

Abstract

Abstract: Growth and biochemical parameters of leaves, flower buds and flowers of olive ( Olea europaea L. cv. Chemlali) treated by foliar biofertilization (T0: untreated trees; T1: rich in nitrogen (N), phosphorus (P), potassium (K); T2: rich in calcium (Ca); T3: application of T1 and T2) were analyzed during the flowering stage. The results showed that T1 resulted in higher contents of leaf N, K, and Na. T1 and T3 resulted in an increase of pigment concentration in leaves. All foliar treatments affected negatively the contents of total polyphenols and orthodiphenols in leaves and flower buds. Lower amounts of individual phenolic compounds were detected in the leaves under all foliar bio-fertilizations and in flower buds of olive trees sprayed with T2 and T3. This decrease is explained by the lower enzymatic activity ofl -phenylalanine ammonia-lyase. In flowers, T1 exhibits the highest levels of total polyphenols, o-diphenols, and individual phenolic compounds compared to T0.