Response of date palm offshoots (<i>Phoenix dactylifera</i> L.) to the foliar spray of salicylic acid and citric acid under salinity conditions

Shareef, Hussein J.; Abbas, Muhammad; Jasim, Abbas M.

doi:10.2478/foecol-2022-0015

Cited by 5 publications

References 37 publications

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Putrescine, in Combination with Gibberellic Acid and Salicylic Acid, Improves Date Palm Fruit Quality via Triggering Protein and Carbohydrate Accumulation and Enhancing Mineral, Amino Acid, Sugar, and Phytohormone Acquisition

Talaat,

Nesiem,

Gadalla

et al. 2023

J Plant Growth Regul

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Putrescine (Put), gibberellic acid (GA3), and salicylic acid (SA) are involved in improving fruit growth and development. This is the first study investigating the effect of 1 mM Put, 100 mg L-1 GA3, and 100 mg L-1 SA on Phoenix dactylifera, cv. Zaghloul fruits. The experiment was conducted in a completely randomized block design during two successive seasons and five treatments [control (distilled water spray), Put, Put + GA3, Put + SA, and Put + GA3 + SA] were sprayed at the Hababouk (cell division) stage and Kimri [unripe green (cell elongation)] stage. Our results showed that all treatments significantly improved the yield and quality of ‘Zaghloul’ fruit by increasing the dry matter, crude fiber, ash, total soluble solids, (reducing, non-reducing, and total soluble) sugars, carbohydrate, protein, nitrogen, phosphorus, potassium, calcium, magnesium, sodium, zinc, iron, and manganese content as well as the peroxidase and catalase activity. Compared with the control treatment, exogenous applications also enhanced the amino acid (glutamic acid, aspartic acid, proline, glycine, alanine, arginine, cysteine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, serine, threonine, tyrosine, valine) acquisition and phytohormone (indole-3-acetic acid, cytokinins, GA3, SA) content, while decreasing the percentage of moisture, total acidity, total phenols, and tannins. The novel evidence indicates that among all treatments, application of diamine (Put), in combination with phytohormones (GA3 and SA), has the greatest effect on improving ‘Zaghloul’ fruit yield by up-regulating the nutrient acquisition, sugar accumulation, amino acid profile, antioxidant response, and phytohormone performance. These findings support the use of Put in conjunction with GA3 and SA to improve fruit yield and quality.

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Putrescine, in Combination with Gibberellic Acid and Salicylic Acid, Improves Date Palm Fruit Quality via Triggering Protein and Carbohydrate Accumulation and Enhancing Mineral, Amino Acid, Sugar, and Phytohormone Acquisition

Talaat,

Nesiem,

Gadalla

et al. 2023

J Plant Growth Regul

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Gibberellic Acid and Salicylic Acid Dual Application Improves Date Palm Fruit Growth by Regulating the Nutrient Acquisition, Amino Acid Profile, and Phytohormone Performance

Talaat,

Nesiem,

Gadalla

et al. 2023

J Soil Sci Plant Nutr

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Gibberellic acid (GA3) and salicylic acid (SA) are crucial phytohormones that support fruit development. The objective of this study was to investigate the mechanism of spraying 100 mg L−1 GA3 and 100 mg L−1 SA in improving the Phoenix dactylifera, cv. Zaghloul fruit yield and quality. The experiment was conducted in a randomized complete block design during two successive growing seasons and four treatments [control (distilled water spray), 100 mg L−1 GA3, 100 mg L−1 SA, and 100 mg L−1 GA3 + 100 mg L−1 SA] were sprayed at the Hababouk and Kimri stages of date palm “Zaghloul” cv. The findings revealed that the GA3 and/or SA applications are necessary for improving the growth and development of “Zaghloul” fruit, which were associated with an increase in the content of dry matter, crude fiber, ash, total soluble solids, total soluble sugars, carbohydrate, protein, and essential nutrients. Moreover, compared with the control treatment, GA3 and/or SA exogenous treatments improved the activity of peroxidase and catalase, as well as the content of amino acids and phytohormones, while decreasing the content of moisture, total acidity, total phenol, and tannins. The results provide evidence that using GA3 in conjunction with SA has the greatest effect on improving “Zaghloul” fruit yield by up regulating the sugar accumulation, amino acid profile, nutrient acquisition, antioxidant capacity, and phytohormone performance. Consequently, combining GA3 with SA can be an effective strategy for enhancing fruit yield and quality.

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Exogenous application of citric acid mitigates salt-induced oxidative stress in Moringa oleifera seedlings

Hajaji,

Maaroufi-Dguimi,

Ammari

2024

J.Umm Al-Qura Univ. Appll. Sci.

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Seeds of Moringa oleifera were planted in sandy and vermicular soil (1/2 w/w) and irrigated with Hoagland solution. Two weeks later, the seedlings were divided into three groups: The first group was irrigated with a control solution (Hoagland solution), the second with a salt solution (10 g/l NaCl) and the third group with a mixed solution (10 g/l NaCl and 100 mM citric acid (CA)). Salinity induced a substantial inhibitory effect on seedling growth of Moringa oleifera. Salt treatment reduced shoot fresh weight (FW), the content of photosynthetic pigments and total soluble proteins (SP). Furthermore, salt treatment resulted in accumulation of total free amino acids, soluble sugars and proline. CA supply in saline solution improved shoot growth, and photosynthetic pigment and soluble proteins levels. The important content of citric acid in leaves was accompanied with a decrease of total free amino acids, soluble sugar and proline contents. More that, exogenous application of citric acid led to a decrease of Malondialdehyde (MDA) and hydrogen peroxide (H2O2) accumulation, reflecting the reduction in the imbalance situation and membrane damage induced by salt stress. Alternatively, citric acid supply in saline conditions reduced the rise of superoxidase dismutase (SOD) and catalase (CAT) activities induced under salinity. Citric acid enhanced the growth rate of salt-treated Moringa oleifera via enhancing antioxidant function. Consequently, citric acid treatment may be a promising method for improving Moringa oleifera plants’ tolerance to salt stress.

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Response of date palm offshoots (Phoenix dactylifera L.) to the foliar spray of salicylic acid and citric acid under salinity conditions

Cited by 5 publications

References 37 publications

Putrescine, in Combination with Gibberellic Acid and Salicylic Acid, Improves Date Palm Fruit Quality via Triggering Protein and Carbohydrate Accumulation and Enhancing Mineral, Amino Acid, Sugar, and Phytohormone Acquisition

Putrescine, in Combination with Gibberellic Acid and Salicylic Acid, Improves Date Palm Fruit Quality via Triggering Protein and Carbohydrate Accumulation and Enhancing Mineral, Amino Acid, Sugar, and Phytohormone Acquisition

Gibberellic Acid and Salicylic Acid Dual Application Improves Date Palm Fruit Growth by Regulating the Nutrient Acquisition, Amino Acid Profile, and Phytohormone Performance

Exogenous application of citric acid mitigates salt-induced oxidative stress in Moringa oleifera seedlings

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