Advances in mango ‘Keitt’ production system: PBZ interaction with fulvic acids and free amino acids

Silva, Luan dos Santos; Sousa, Kellem Ângela Oliveira de; Pereira, Emanuella Chiara Valença; Rolim, Larissa Araújo; Cunha, Jenilton Gomes da; Santos, Mariana; Silva, Marcelle Almeida da; Cavalcante, Ítalo Herbert Lucena

doi:10.1016/j.scienta.2020.109787

Cited by 10 publications

(2 citation statements)

References 35 publications

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“…In addition, the application of fulvic acid through leaf spraying can enhance the effects of paclobutrazol (PBZ) in suppressing gibberellin synthesis. This leads to improved flower uniformity and increased accumulation of carbohydrates, proteins, and amino acids within the plant (dos Santos Silva et al, 2021). Our study focuses on ensuring plant nutrition acquisition and achieving marketable yield.…”

Section: Introductionmentioning

confidence: 99%

The use of potassium silicate and fulvic acid to mitigate the effects of heat stress in tomato plants

Abdel-Zaher,

Abd El-Rehim,

Abd Elmotagly

et al. 2023

Archives of Agriculture Sciences Journal

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In the summer season, the heat poses a challenge to open-field tomato production, leading to decreased yields. As a result, we conducted a study to examine the impact of various foliar spray compositions on enhancing nutrient absorption and increasing fruit yield in tomato plants. The experiment consisted of two factors: Hybrids [Nirouz (TH99806) and 023] as the main factor, while the sub-main factor was potassium silicate (P3: 3 mL L -1 ) or/and fulvic acid (F2: 2 mL L -1 ), and CK (H2O) as a control. The plants were sprayed three times, the first time was after 30 days from transplanting the seedlings, the second time was after 20 days from the first time, and the third time was after 20 days from the second time. As a result, P3 generated the highest yield in plants compared with the other treatments. Also, Foliar spraying with P3+F2 increased the leaf content of chlorophyll a, carotene and TSS. Thus, P3 and P3+F2 stimulated the plant nutrient uptake, which improved the marketable yield. So, we recommend foliar spraying with potassium silicate at a rate of 3 mL per liter of water to avoid heat stress on tomato plants.

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Section: Introductionmentioning

confidence: 99%

The use of potassium silicate and fulvic acid to mitigate the effects of heat stress in tomato plants

Abdel-Zaher,

Abd El-Rehim,

Abd Elmotagly

et al. 2023

Archives of Agriculture Sciences Journal

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“…However, these studies mainly focused on the carbohydrates and endogenous hormones in leaves and flower buds and their changes during FI ( Upreti et al, 2013 ; Upreti et al, 2014 ; Xing et al, 2015 ). Research has also evaluated the effects of metabolites such as sucrose and fulvic acid with PBZ on FI ( Du et al, 2017 ; dos Santos Silva et al, 2021 ). Meanwhile, early reports in mango showed that other metabolites, such as amino acids and phenols, were involved in mango FI ( Tiwari, Patel & Pandey, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Widely targeted metabolite profiling of mango stem apex during floral induction by compond of mepiquat chloride, prohexadione-calcium and uniconazole

Liang

et al. 2022

PeerJ

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Background Insufficient low temperatures in winter and soil residues caused by paclobutrazol (PBZ) application pose a considerable challenge for mango floral induction (FI). Gibberellin inhibitors SPD (compound of mepiquat chloride, prohexadione-calcium and uniconazole) had a significant influence on enhancing the flowering rate and yield of mango for two consecutive years (2020–2021). Researchers have indicated that FI is regulated at the metabolic level; however, little is known about the metabolic changes during FI in response to SPD treatment. Methods Here, ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (UPLC-ESI-MS/MS)-based widely targeted metabolomic analysis was carried out to assess the metabolic differences in the mango stem apex during different stage of mango FI (30, 80, 100 days after SPD/water treatment). Results A total of 582 compounds were annotated and 372 metabolites showed two-fold differences in abundance (variable importance in projection, VIP ≥ 1 and fold change, FC≥ 2 or≤ 0.5) between buds at 30, 80, 100 days after SPD/water treatment or between buds under different treatment. Lipids, phenolic acids, amino acids, carbohydrates, and vitamins were among metabolites showing significant differences over time after SPD treatment. Here, 18 out of 20 lipids, including the lysophosphatidylethanolamine (12, LPE), lysophosphatidylcholine (7, LPC), and free fatty acids (1, FA), were significantly upregulated from 80 to 100 days after SPD treatment comared to water treatment. Meanwhile, the dormancy release of mango buds from 80 to 100 days after SPD treatment was accompanied by the accumulation of proline, ascorbic acid, carbohydrates, and tannins. In addition, metabolites, such as L-homocysteine, L-histidine, and L-homomethionine, showed more than a ten-fold difference in relative abundance from 30 to 100 days after SPD treatment, however, there were no significant changes after water treatment. The present study reveals novel metabolites involved in mango FI in response to SPD, which would provide a theoretical basis for utilizing SPD to induce mango flowering.

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Fulvic and Salicylic Acids Improve Morpho-Physio-Biochemical Attributes, Yield and Fruit Quality of Two Mango Cultivars Exposed to Dual Salinity and Heat Stress Conditions

Samad,

Shaaban

2024

J Soil Sci Plant Nutr

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Purpose The present research’s main objective was to explore the potential stimulative effect of fulvic acid (FA) as a soil conditioner and salicylic acid (SA) as foliar spraying on morpho-physio-biochemical attributes, fruit yield, and quality of ‘Sediek’ and ‘Ewais’ mango cultivars (cvs.) grown under saline calcareous soil and heat stress conditions Methods Eight treatments, namely, 200 (FA200) and 400 (FA400) g FA tree−1 as a soil addition, 200 (SA200) or 400 (SA400) mg SA L−1 as foliar spraying, and their bilateral combinations (e.g., FA200 + SA200, FA200 + SA400, FA400 + SA200, and FA400 + SA400) compared to untreated control on morpho-physio-biochemical attributes, yield, and fruit quality of ‘Sediek’ and ‘Ewais’ mango cvs. grown under saline calcareous soil and heat stress conditions were assessed. These treatments were carried out using a split-plot arrangement in a randomized complete block design replicated three times during the 2022 and 2023 seasons. Results Cultivar Sediek had higher SPAD value, leaf proline and phenolic content, leaf area, fruit weight, yield and vitamin C than Ewais which had higher tree water status and shoot length. Saline calcareous and heat-stressed mango trees without FA or/and SA treatment had a significant decline in their water status, photosynthetic traits, biochemical responses that adversely affected growth and yield and fruit quality. However, soil FA addition and foliar SA spraying alone or in combination at any application level attenuated the negative effects of saline calcareous and heat-stress conditions via enhancing the morpho-physio-biochemical attributes, positively reflecting in tree growth, yield, and fruit quality. FA treatment alone improved tree water status (membrane stability index; MSI and relative water content; RWC), photosynthetic traits (SPAD value and maximum photochemical efficiency; Fv/Fm), leaf area, fruit weight, fruit yield, and fruit vitamin C (fruit vit.C), while SA treatment alone enhanced leaf proline and phenolic content, shoot length, and fruit total soluble solids (fruit TSS) compared to the non-FA or SA-treated control. Moreover, co-application of FA400 and SA400 effectively alleviated the harmful impacts of dual stress of heat and salinity on mango trees by improving MSI, RWC, SPAD value, Fv/Fm, proline and phenolic content, fruit weight, fruit yield, fruit TSS, fruit vit.C by 19.7, 26.1, 46.7, 18.7, 101.7, 390.7, 42.7, 6.8, 22.6, 69.6% (averages of the two seasons), respectively, compared to the non-FA or SA-treated trees. Conclusion It is recommended to add 400 g FA tree−1 to soil integrated with 400 mg SA L−1 foliar spraying four times at 30-day intervals for improving water status and photosynthetic traits, proline and phenolic accumulation, thereby growth, yield, and fruit quality of mango trees exposed to dual stress of heat and salinity under arid conditions.

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Advances in mango ‘Keitt’ production system: PBZ interaction with fulvic acids and free amino acids

Cited by 10 publications

References 35 publications

The use of potassium silicate and fulvic acid to mitigate the effects of heat stress in tomato plants

The use of potassium silicate and fulvic acid to mitigate the effects of heat stress in tomato plants

Widely targeted metabolite profiling of mango stem apex during floral induction by compond of mepiquat chloride, prohexadione-calcium and uniconazole

Fulvic and Salicylic Acids Improve Morpho-Physio-Biochemical Attributes, Yield and Fruit Quality of Two Mango Cultivars Exposed to Dual Salinity and Heat Stress Conditions

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