Humic Acid Improves the Resilience to Salinity Stress of Drip-Irrigated Mexican Lime Trees in Saline Clay Soils

Ennab, H. A.; Mohamed, Azza H.; El-Hoseiny, Hanan M.; Omar, Ahmad A.; Hassan, Islam F.; Gaballah, M. S.; Khalil, Soha E.; Mira, Amany M.; El-Khalek, Ahmed F. Abd; Alam‐Eldein, Shamel M.

doi:10.3390/agronomy13071680

Cited by 9 publications

(7 citation statements)

References 104 publications

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“…The current findings displayed that ions' content was progressively increased by HA concentrations, nevertheless, Na was reduced. These findings were consistent with those achieved by Ennab et al [33] and Sahar et al [83]. Additionally, HA maintained an extraordinary level of acid phosphate activity that increased phosphate activity holds for improved plant P uptake [84].…”

Section: Discussionsupporting

confidence: 92%

“…HA also helps plants absorb nutrients, and it is particularly crucial for the movement and availability of micronutrients [32]. Recently, Ennab et al [33] recorded that the use of HA as soil addition and/or foliar spraying increased significantly macro and micro-nutrient contents as well as chlorophyll and proline concentration associated with improving plant growth trials.…”

Section: Introductionmentioning

confidence: 99%

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Role of Humic Acid on Inducing Salt Tolerance of Ivy Geranium (Pelargonium peltatum L.) Plants

Elhindi,

Almana,

Al-Yafrsi

2023

Horticulturae

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Saline water is used in floriculture as an alternative to freshwater in arid regions such as Saudi Arabia (SA). However, salt stress considerably accelerates serious physio-biochemical changes associated with a decline in plant establishment. Recently, humic acid (HA) foliar spraying has induced plant stress tolerance in the era of climate change; however, its precise roles in the floriculture industry within saline conditions are not yet well documented. A factorial pot experiment throughout the 2022/2023 season was conducted in the Nursery of Sustainability and Environmental Developmental Department, King Saud University, Riyadh, SA, to evaluate the potential effects of HA (0, 500, 1000 and 2000 mg/L) on growth, flowering and some physiological characteristics of Ivy geranium (Pelargoniumpeltatum) plants irrigated with saline water (230 “control”, 2000 and 4000 mg/L NaCl). Irrigation with saline water markedly inhibited plant growth, flowering attributes, the chlorophyll index, as well as macro and micro-nutrient levels, but increased the content of iron, sodium and proline in plant shoots relative to plants irrigated with non-salinized water. However, HA mainly at 1000 mg/L significantly improved plant growth, flowering capacity, nutrient status, proline accumulation and chlorophyll index under salinized or non-salinized irrigation water. Additionally, spraying of HA concentrations (500, 1000 and 2000 mg/L) under normal or salinity conditions significantly increased shoot sodium content relative to non-treated plants under such salinity levels. Our findings highlight the significance of HA concentrations (500, 1000 and 2000 mg/L) in improving the salt tolerance of Ivy geranium. Within the scarcity of irrigation water, it is recommended to irrigate Ivy geranium with saline water up to 4000 mg/L NaCl associated with spraying HA concentrations in special 1000 mg/L.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Role of Humic Acid on Inducing Salt Tolerance of Ivy Geranium (Pelargonium peltatum L.) Plants

Elhindi,

Almana,

Al-Yafrsi

2023

Horticulturae

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“…While in presented study application of humic acid to salinity stressed mung bean cultivars boosted photosynthetic pigments. Similar ndings were obtained by El-Sarkassy et al 2017 in pepper plants and Ennab et al (2023) in Mexican Lime Trees. The humic acid raised photosynthetic pigment may be enhancing the absorption of nutrients in plants (So et al 2021).…”

Section: Discussionsupporting

confidence: 89%

Role of foliar application of Humic acid on Mung bean (Vigna radiata L.) cultivars under Salinity stress

Patankar,

Nigam,

Chaudhary

2023

Preprint

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Higher salinity affects 20% of farmed land and 33% of irrigated land area globally. These affect causes food crises worldwide. Humic acid provide protection against stress and promote the plant growth and productivity. Therefore, this study focuses on dose response relationship between exogenous applied humic acid and salt stress on Mung (Vigna radiata L.) cultivars. Resultants the application of humic acid under salt stress improved the plant growth and yield of selected cultivars. The higher salinity (100 ppm) caused higher effect on both selected cultivars than 50ppm salt as compared to control plants. While applied protectants 40%HA with 50 ppm salt is more effective than 40% HA with 100ppm salt in both selected cultivars. Based on biomass and yield reduction Pusa Baisakhi is least sensitive to salt than ML-131. Study also concise that salt stress depends on growth stages of plant and higher biomass reduced at 20 DAS in cultivar Pusa Baisakhi (-11.15%) and at 40 DAS in cultivar ML-131 (-25.62%). The higher production of yield due to application of humic acid was seen (65.95%) in cultivar ML-131 than cultivar Pusa Baisakhi (8.54%). Therefore the study promoted that under salt stress conditions humic acid uses as a protectant and cultivar Pusa Baisakhi as a tolerance species will be useful tool for sustainable agriculture.

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“…Similarly, applying HA on lime trees at 10, 20 or 30 mL•tree −1 remarkably increased the available nutrients in the soil such as N, P, K, Ca, Mg, Fe, Mn, Zn, Cu, and b. Moreover, it also improved the soil microbial activity, vegetative growth, tree canopy, leaf chlorophyll, number and weight of fruits and, consequently, the final productivity, as well as the fruit content from juice and soluble solids [44].…”

Section: Discussionmentioning

confidence: 94%

Olive Performance under the Soil Application of Humic Acid and the Spraying of Titanium and Zinc Nanoparticles under Soil Salinity Stress

Al-Saif,

Sas-Paszt,

Mosa

2024

Horticulturae

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Salinity is a major social, economic, and environmental menace in climates with low rainfall and high evapotranspiration, and it influences plant growth and causes restriction to crop production in the world. Additionally, under salinity stress, numerous physiological processes such as photosynthesis, biomass accumulation, and photosynthate transfer are also harshly lessened, and it also limits the absorption of adequate water by plants and leads to a dimension in plant water status. Therefore, the current study was conducted to investigate the soil application of humic acid (HA) at 0, 0.5, 1 and 2 kg/tree alone or in combination with the foliar spraying of 0 mg ZnO2 + 0 mg TiO2, 200 mg ZnO2 + 60 mg TiO2 and/or 300 mg ZnO2 + 80 mg TiO2 through the two successive seasons 2022 and 2023. The results demonstrated that the use of HA alone or in combination with the spraying of TiO2 and ZnO2 greatly improved the leaf chlorophyll, flower number, fruit set percentages, fruit yields in kg or in ton per hectare, fruit weight, fruit size, and fruit firmness. Additionally, the same used treatments greatly improved the fruit content from TSS and oil percentages and also the leaf mineral content from N, P and K, while they minimized the fruit drop percentage and fruit moisture content as compared to control. The most positive influence was observed with the soil implementation of 2 kg HA combined with 300 mg ZnO2 + 80 mg TiO2 in the two experimental seasons.

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Humic Acid Improves the Resilience to Salinity Stress of Drip-Irrigated Mexican Lime Trees in Saline Clay Soils

Cited by 9 publications

References 104 publications

Role of Humic Acid on Inducing Salt Tolerance of Ivy Geranium (Pelargonium peltatum L.) Plants

Role of Humic Acid on Inducing Salt Tolerance of Ivy Geranium (Pelargonium peltatum L.) Plants

Role of foliar application of Humic acid on Mung bean (Vigna radiata L.) cultivars under Salinity stress

Olive Performance under the Soil Application of Humic Acid and the Spraying of Titanium and Zinc Nanoparticles under Soil Salinity Stress

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