Impact of treated wastewater and salicylic acid on physiological performance, malformation and yield of two mango cultivars

Helaly, M. N.; Elsheery, Nabil I.; El-Hoseiny, Hanan M.; Rastogi, Anshu; Kalaji, Hazem M.; Zabochnicka-Świątek, Magdalena

doi:10.1016/j.scienta.2018.01.001

Cited by 29 publications

(10 citation statements)

References 62 publications

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“…Increase in the content of total chlorophyll and chlorophyll a and b in sandy loam soil due to increased concentration of TW in the irrigation water ( Figure 2) may be related to photosynthetic behavior ( Figure 1) and accumulation of N and Mg in millet leaves (Figure 3), chemical elements related to chlorophyll synthesis in plants (Taiz;Zeiger, 2013). Comparatively, these results are similar to those reported by Helaly et al (2018) andBen Hassena et al (2018), who observed that wastewater irrigation positively influenced the content of total chlorophyll in mango trees (Mangifera indica L.) and olive trees (Olea europaea L. cv. Chetoui), respectively.…”

Section: Resultssupporting

confidence: 91%

Millet irrigation with treated wastewater: Gas exchange response and nutrient accumulation

et al. 2019

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Wastewater can be considered an excellent nutritional and water source for cultivated plants. However, the presence of high concentrations of salts and toxic compounds can negatively affect crops. The effect of irrigation with different concentrations of treated wastewater on the accumulation of nutrients and gas exchange aspects of millet (Pennisetum glaucum (L.) R. Br.) grown in clay soil and sandy loam soil was analyzed. This study was conducted in a greenhouse (16°40’57,50” S; 43°50’26,07” O; 650 m) in a 5 x 2 factorial design, consisting of five levels of concentration of treated wastewater (0, 25, 50, 75, and 100%), combined with two types of soil (clay and sandy loam). The experiment was designed in randomized blocks with four replicates. The increase in treated wastewater concentration in irrigation water applied to clay soil and sandy loam soil favored the increase of net photosynthesis, transpiration rate, stomatal conductance, leaf chlorophyll content and accumulation of macro- and micronutrients in millet plants. Millet plants grown in clay soil showed an average increase of 23% in gas exchange capacity and 71% in accumulation of macro- and micronutrients, when compared with treatments in sandy loam soil. Therefore, treated wastewater contributes to the increase in gas exchange capacity and greater accumulation of nutrients in millet plants, which represents an alternative for reduced demand for fresh water and use of chemical fertilizers.

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Section: Resultssupporting

confidence: 91%

Millet irrigation with treated wastewater: Gas exchange response and nutrient accumulation

et al. 2019

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“…However, the recent results also show an effect on reducing the abscission of pomegranate fruit. Accordingly, Helaly et al (2018) found a higher percentage of fruit retention and crop yield on two mango cultivars for three consecutive years as a consequence of SA treatments. These effects were attributed to the role of SA activating growth and the nutritional state of trees due to an increase in fresh and dry weight and chlorophyll, carotenoid, and sugar concentration in leaves, showing an effect on enhancing net photosynthesis on tree.…”

Section: Discussionmentioning

confidence: 84%

The Effects of Salicylic Acid and Its Derivatives on Increasing Pomegranate Fruit Quality and Bioactive Compounds at Harvest and During Storage

et al. 2020

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In the present research two experiments were performed to evaluate the effect of preharvest salicylic acid (SA), acetyl salicylic acid (ASA), and methyl salicylate (MeSa), applied as a foliar spray to pomegranate "Mollar de Elche," on crop yield, fruit quality parameters, and bioactive compounds at harvest and during storage. In the 2017 experiment, trees were treated with SA, ASA, and MeSa at 1, 5, and 10 mM and a higher crop yield (kg tree −1 and number of harvested fruit tree −1) and quality parameters (firmness, aril color, and individual sugars and organic acids) at harvest were obtained, as well as a higher concentration of phenolics, anthocyanins, and ascorbic acid. The best results were achieved with 10 mM dose of the three assayed compounds, which was chosen for the 2018 experiment, and results for crop yield and fruit quality attributes were confirmed. These quality traits and the concentration of phenolics, anthocyanins, and ascorbic acid were maintained at higher levels in pomegranate fruit from treated trees than in controls during prolonged storage at 10 • C. In addition, the effects of salicylate treatments on increasing total and individual anthocyanin concentration in pomegranate arils led to arils with a deeper red color (Graphical Abstract) and, in turn, fruit that would be more appreciated in the international market. This fact, together with the increased crop yield, would contribute to the increased profit of this crop. Thus, pre-harvest treatment with salicylates, and especially SA at 10 mM concentration, could be a safe, natural, and new tool to improve fruit quality and its content on antioxidant compounds with health beneficial effects (namely, ascorbic acid, phenolics, and anthocyanins) at harvest and during storage.

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“…Symptoms also included green and dwarfed floral panicles with distorted leaves growing instead of flowers. The floral malformation percentage was calculated using the following equation [45]:…”

Section: Floral Malformation Assessment (%)mentioning

confidence: 99%

Zinc Oxide and Silicone Nanoparticles to Improve the Resistance Mechanism and Annual Productivity of Salt-Stressed Mango Trees

et al. 2020

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Limited findings have been reported on using nanomaterials to improve tree fruit growth, development, and productivity under various stress conditions. To assess the effect of nanoparticles (NPs) like nano-zinc oxide (nZnO) and nano-silicon (nSi) on mango tree growth, yield, and fruit quality under salinity conditions, a factorial experiment was conducted using twelve treatments; three replicates each. Foliar spray of nZnO (50, 100, and 150 mg/L), nSi (150 and 300 mg/L), their combinations, and distilled water as a control was applied at full bloom and one month after of salt-stressed “Ewais” mango trees. Trees positively responded to different levels of nZnO and nSi. Plant growth, nutrients uptake, and carbon assimilation have improved with all treatments, except the higher concentration of nSi. Plant response to stress conditions was represented by a high level of proline content with all treatments, but changes in the activity of the antioxidant enzymes were positively related to the lower and medium concentrations of NPs. Flower malformation has significantly decreased, and the annual fruit yield and physiochemical characteristics have improved with all treatments. It could be recommended that a combination of 100 mg/L nZnO and 150 mg/L nSi improves mango tree resistance, annual crop load, and fruit quality under salinity conditions.

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Impact of treated wastewater and salicylic acid on physiological performance, malformation and yield of two mango cultivars

Cited by 29 publications

References 62 publications

Millet irrigation with treated wastewater: Gas exchange response and nutrient accumulation

Millet irrigation with treated wastewater: Gas exchange response and nutrient accumulation

The Effects of Salicylic Acid and Its Derivatives on Increasing Pomegranate Fruit Quality and Bioactive Compounds at Harvest and During Storage

Zinc Oxide and Silicone Nanoparticles to Improve the Resistance Mechanism and Annual Productivity of Salt-Stressed Mango Trees

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