Effect of Salicylic and Ascorbic Acids Foliar Application on Picual Olive Trees Growth under Water Stress Condition

Refaey, Ahmed El; Mohamed, Yahya; El-Shazly, S. M.; Salam, Asmaa Abd El

doi:10.21608/ejss.2022.122113.1493

Cited by 7 publications

(5 citation statements)

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“…Therefore, the proline accumulation in oregano plants tends to increase to a lesser extent when stress modulators are applied. Specifically, stress modifiers, through their hormonal effects, increase the number of root branches, influencing plant cell metabolism and chelating capabilities, and enhancing nutrient and water absorption, resulting in the reduction of proline concentration [ 7 , 14 , 15 , 22 , 30 ].…”

Section: Discussionmentioning

confidence: 99%

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The Role of Stress Modifier Biostimulants on Adaptive Strategy of Oregano Plant for Increasing Productivity under Water Shortage

Abdali,

Rahimi,

Siavash Moghaddam

et al. 2023

Plants

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To investigate the influence of stress modulators on the adaptive physiological responses and biomass traits of oregano under water stress conditions, a two-year (2018 and 2019) randomized complete block-designed factorial research was performed. In this study, oregano plants were treated with five stress modulators levels (CHN: chitosan, AMA: amino acids, SEW: seaweed, ASA: ascorbic acid, SAA: salicylic acid, and CON: control) at three levels of irrigation regimes (Irr40 (40), Irr60 (60) and Irr75 (75) % field capacity). The effects of water shortage and biostimulant application were evaluated on total dry weight (TDW), relative water content (RWC), essential oil production, chlorophyll, nutrient (N, K, and P), proline, total soluble sugar, polyphenol and flavonoid content, and activity of antioxidant enzymes. The result showed that under optimal irrigation conditions, oregano plants sprayed with CHN exhibited the highest dry weight (141.23 g m−2) as a morphological trait, the highest relative water content (79.34%), the most consistent concentrations of nitrogen, phosphorus and potassium (3.14, 0.39, and 1.69%, respectively), chlorophylls a and b (3.02 and 1.95 mg g−1 FW, respectively), and total phenols and total flavonoids (30.72 and 3.17 mg g−1 DW, respectively). The water deficit increased the proline content, with the greatest amount (4.17 μg g−1 FW) observed in control plants. Moreover, under moisture shortage stress conditions, the application of CHN and SEW increased the soluble sugar (27.26 μmol g−1 FW) and essential oil yield (1.80%) production, the catalase, ascorbate peroxidase, and superoxide dismutase activities (3.17, 1.18, and 63.89 μmol min−1 g−1 FW, respectively) compared to control plants. In summary, the study demonstrated that oregano plants respond positively to stress modulator treatments when subjected to moisture shortage stress, especially when treated with chitosan. The results offer promising insights for developing sustainable adaptative strategies aimed at enhancing the oregano’s tolerance to water shortage, ultimately improving its productivity and biochemical traits.

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Section: Discussionmentioning

confidence: 99%

“…Ascorbate, commonly known as vitamin C, is not only involved in the ascorbate–glutathione pathway but also protects enzymes with prosthetic transition metal ions [ 15 ]. It acts as a cofactor for various enzymes, including those implicated in cell wall division and the hydroxylation of proline residues [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

The Role of Stress Modifier Biostimulants on Adaptive Strategy of Oregano Plant for Increasing Productivity under Water Shortage

Abdali,

Rahimi,

Siavash Moghaddam

et al. 2023

Plants

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“…Applying the organic amendments like compost or organic fertilizers or green manure are the most common practices in sandy soils (Figure 4). Under water stress conditions, foliar application using salicylic acid (150 mg L −1 ), and ascorbic acid (100 mg L −1 ) can support the productivity of olive trees grown in Matrouh, Egypt [41]. The integrated inoculation of pearl millet by mycorrhizae fungi, with combined application of humic acid (38.4 kg ha −1 ) and phosphoric acid (1.5 mL L −1 ) improved the availability of nutrient status of sandy calcareous soil in Mariout, southwest of Alexandria, Egypt [42].…”

Section: Saline Sandy Soilsmentioning

confidence: 99%

Nano-Restoration for Sustaining Soil Fertility: A Pictorial and Diagrammatic Review Article

El-Ramady

Brevik

Fawzy

et al. 2022

Plants

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Soil is a real treasure that humans cannot live without. Therefore, it is very important to sustain and conserve soils to guarantee food, fiber, fuel, and other human necessities. Healthy or high-quality soils that include adequate fertility, diverse ecosystems, and good physical properties are important to allow soil to produce healthy food in support of human health. When a soil suffers from degradation, the soil’s productivity decreases. Soil restoration refers to the reversal of degradational processes. This study is a pictorial review on the nano-restoration of soil to return its fertility. Restoring soil fertility for zero hunger and restoration of degraded soils are also discussed. Sustainable production of nanoparticles using plants and microbes is part of the process of soil nano-restoration. The nexus of nanoparticle–plant–microbe (NPM) is a crucial issue for soil fertility. This nexus itself has several internal interactions or relationships, which control the bioavailability of nutrients, agrochemicals, or pollutants for cultivated plants. The NPM nexus is also controlled by many factors that are related to soil fertility and its restoration. This is the first photographic review on nano-restoration to return and sustain soil fertility. However, several additional open questions need to be answered and will be discussed in this work.

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“…Utilizing plant growth regulators at various stages of plant growth may be a valuable strategy to lessen the detrimental effects of abiotic stresses on the yield of horticultural crops (Ennab et al, 2020;Nezamdoost et al, 2023). SA is a plant hormone that belongs to phenol compounds that regulate the activation of biotic and abiotic stress defense systems (González-Villagra et al, 2022;El Refaey et al, 2022). In the presence of stress, SA is crucial for controlling the intake of nutrients, cell elongation, levels of photosynthetic pigment, and the activity of photosynthesis, all of which affect the growth and development of plants (Khan et al, 2022;Rashad, 2020).…”

Section: Introductionmentioning

confidence: 99%

Improved water use efficiency and yield of drip-irrigated pepper under full and deficit irrigation conditions

Mostafa,

Abd El-wahed,

Hamad

et al. 2024

Egypt.J. Soil Sci.

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N EGYPT, water scarcity is the main problem the agricultural sector faces. Salicylic acid (SA) as a plant growth regulator may help mitigate the adverse effects of deficit irrigation water on pepper plants. Sweet pepper (cv. S702 F1) plants subjected to deficit irrigation (DI 40% = 60% of crop evapotranspiration, ETc) regularly during growth stages produced decreases in plant height, total chlorophyll, fruit number per plant, fruit length, fruit diameter, fruit volume, fruit yield, fruit carotenoids, and total dry matter comparing with the full irrigation (FI= 100% of ETc). However, water use efficiency (WUE), proline, free amino acids, ascorbic acid, total sugars, total soluble solids (TSS), total phenols content (TPC), total flavonoids content (TFC), and nitrate content were enhanced under deficit irrigation conditions. The results showed that under FI or DI 40% with foliar application of SA at 1.0 mM was more effective than 0.5 and 1.5 mM in improving vegetative growth and yield parameters. However, FI produced the highest significant values of plant height, total chlorophyll, fruit yield, carotenoids, and total dry matter. Conversely, the pepper plant's ability to withstand DI 40% was enhanced by the 1.0 mM SA treatment, which resulted in the highest accumulation of ascorbic acid, total sugars, TSS, TPC, and TFC. Moreover, the application of SA significantly increased WUE and decreased fruit nitrate content. It could be concluded that the foliar application of SA can alleviate the detrimental effects of deficit irrigation on pepper plants.

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Effect of Salicylic and Ascorbic Acids Foliar Application on Picual Olive Trees Growth under Water Stress Condition

Cited by 7 publications

References 0 publications

The Role of Stress Modifier Biostimulants on Adaptive Strategy of Oregano Plant for Increasing Productivity under Water Shortage

The Role of Stress Modifier Biostimulants on Adaptive Strategy of Oregano Plant for Increasing Productivity under Water Shortage

Nano-Restoration for Sustaining Soil Fertility: A Pictorial and Diagrammatic Review Article

Improved water use efficiency and yield of drip-irrigated pepper under full and deficit irrigation conditions

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