Amelioration of salinity stress in wheat (Triticum aestivum L) by foliar application of phosphorus

Khan, Asma Ashraf; Ahmad, Iftikhar; Shah, A. N.; Ahmad, Fayyaz; Ghani, A.; Nawaz, Muhammad; Shaheen, Farzana; Fatima, Hira; Pervaiz, F; Javed, Syed Ayyaz; Hayat, Faisal; Nawaz, Humera; Zubair, R

doi:10.32604/phyton.2013.82.281

Cited by 10 publications

(5 citation statements)

References 16 publications

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“…The plant height and dry weights of shoot and roots decreased in plants grown in high salinity conditions which is in line with previous reports (Awad et al, 2012;El-Beltagi et al, 2013;El-Lethy, Abdelhamid & Reda, 2013;Naeem et al, 2020). Our findings are also in agreement with those of Khan et al (2013). The highest value of shoot dry weight of plants treated with P was possibly due to the significant increased the area of the leaf per plant, which increased the area available for photosynthesis and biomass production.…”

Section: Discussionsupporting

confidence: 94%

Coupling effects of phosphorus fertilization source and rate on growth and ion accumulation of common bean under salinity stress

Mohamed

El-Sayed

Rady

et al. 2021

PeerJ

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Many agricultural regions in arid and semiarid climate zone need to deal with increased soil salinity. Legumes are classified as salt-sensitive crops. A field experiment was performed to examine the application of phosphorus (P) fertilizer source and rate on growth, chlorophylls and carotenoid content, DNA and RNA content and ion accumulation in common bean (Phaseolus vulgaris L.) cultivated under salinity stress. An experimental design was split-plot with three replicates. The main plots included two P sources, namely single superphosphate (SP) and urea phosphate (UP). The sub-plots covered four P rates, i.e., 0.0, 17.5, 35.0, and 52.5 kg P ha–1. All applied P fertilization rates, in both forms, increased plant height, leaf area, dry weight of shoots and roots per plant, and total dry weight (TDW) in t ha−1. The highest accumulation of N, P, K+, Mg2+, Mn2+, Zn2+, and Cu2+ was determined in the shoot and root of common bean, while 35 kg of P per ha−1 was used compared to the other levels of P fertilizer. The highest P rate (52.5 kg ha−1) resulted in a significant reduction in Na+ in shoot and root of common bean. The response curve of TDW (t ha–1) to different rates of P (kg ha–1) proved that the quadratic model fit better than the linear model for both P sources. Under SP, the expected TDW was 1.675 t ha–1 if P was applied at 51.5 kg ha–1, while under UP, the maximum expected TDW was 1.875 t ha–1 if P was supplied at 42.5 kg ha–1. In conclusion, the 35.0 kg P ha–1 could be considered the best effective P level imposed. The application of P fertilizer as urea phosphate is generally more effective than single superphosphate in enhancing plant growth and alleviating common bean plants against salinity stress.

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Section: Discussionsupporting

confidence: 94%

Coupling effects of phosphorus fertilization source and rate on growth and ion accumulation of common bean under salinity stress

Mohamed

El-Sayed

Rady

et al. 2021

PeerJ

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“…Foliar application of potassium improves photosynthesizing efficiency, antioxidant enzymatic efficiency, potassium intake by plants, and sodium absorption and salt stress environments (El-Lethy et al, 2013). Sodium absorption, leaf area index, and biological yield were found to be improved under stressed environments by external application of phosphorous (Khan et al, 2013). Calcium sulfate is also an important nutrient that alleviates the ill effect of salt stress by improving the intake of calcium and potassium and improves crop growth in salinity stress (Zaman et al, 2005).…”

Section: Plant Nutrientsmentioning

confidence: 99%

Salinity Stress in Wheat (Triticum aestivum L.) in the Changing Climate: Adaptation and Management Strategies

Sabagh¹,

Islam²,

Skalický³

et al. 2021

Front. Agron.

178

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Wheat constitutes pivotal position for ensuring food and nutritional security; however, rapidly rising soil and water salinity pose a serious threat to its production globally. Salinity stress negatively affects the growth and development of wheat leading to diminished grain yield and quality. Wheat plants utilize a range of physiological biochemical and molecular mechanisms to adapt under salinity stress at the cell, tissue as well as whole plant levels to optimize the growth, and yield by off-setting the adverse effects of saline environment. Recently, various adaptation and management strategies have been developed to reduce the deleterious effects of salinity stress to maximize the production and nutritional quality of wheat. This review emphasizes and synthesizes the deleterious effects of salinity stress on wheat yield and quality along with highlighting the adaptation and mitigation strategies for sustainable wheat production to ensure food security of skyrocketing population under changing climate.

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“…Furthermore, a recent study by El-Mejjaouy et al 75 reported that phosphorus shortage severely disrupts CO 2 assimilation. Thus, previous investigations have supported the need for appropriate phosphate nutrition in salt-stressed wheat for efficient ion compartmentation, namely through the contribution to the efficient partitioning of C and the photo-assimilates use 50 , 76 . In line with this, Mohamed et al 40 concluded that the increased CCI in fertilized plants improves photosynthetic activity, which leads to optimal plant growth and higher biomass production.…”

Section: Discussionmentioning

confidence: 84%

“…Furthermore, several investigations concluded that phosphorus application plays a pivotal role in the enhanced salt tolerance of Quinoa 33 , Sorghum 39 , Tomato 48 , Barley 49 , Common bean 40 and Sugar beet 41 . The foliar application of P to wheat plants 50 and common bean plants 43 growing in salt stress conditions also exhibited this beneficial impact, revealed by the improvement in overall plant performances. Indeed, the positive interaction between salinity and phosphorus nutrition was confirmed in plant growth and yield.…”

Section: Introductionmentioning

confidence: 86%

Polyphosphate fertilizer impacts the enzymatic and non-enzymatic antioxidant capacity of wheat plants grown under salinity

Loudari

Latique

Mayane

et al. 2023

Sci Rep

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By 2050, the predicted global population is set to reach 9.6 billion highlighting the urgent need to increase crop productivity to meet the growing demand for food. This is becoming increasingly challenging when soils are saline and/or deficient in phosphorus (P). The synergic effect of P deficiency and salinity causes a series of secondary stresses including oxidative stress. Reactive Oxygen Species (ROS) production and oxidative damage in plants caused either by P limitation or by salt stress may restrict the overall plant performances leading to a decline in crop yield. However, the P application in adequate forms and doses could positively impact the growth of plants and enhances their tolerance to salinity. In our investigation, we evaluated the effect of different P fertilizers forms (Ortho-A, Ortho-B and Poly-B) and increasing P rates (0, 30 and 45 ppm) on the plant's antioxidant system and P uptake of durum wheat (Karim cultivar) grown under salinity (EC = 3.003 dS/m). Our results demonstrated that salinity caused a series of variations in the antioxidant capacity of wheat plants, at both, enzymatic and non-enzymatic levels. Remarkably, a strong correlation was observed between P uptake, biomass, various antioxidant system parameters and P rates and sources. Soluble P fertilizers considerably enhanced the total plant performances under salt stress compared with control plants grown under salinity and P deficiency (C+). Indeed, salt-stressed and fertilized plants exhibited a robust antioxidant system revealed by the increase in enzymatic activities of Catalase (CAT) and Ascorbate peroxidase (APX) and a significant accumulation of Proline, total polyphenols content (TPC) and soluble sugars (SS) as well as increased biomass, Chlorophyll content (CCI), leaf protein content and P uptake compared to unfertilized plants. Compared to OrthoP fertilizers at 45 ppm P, Poly-B fertilizer showed significant positive responses at 30 ppm P where the increase reached + 18.2% in protein content, + 156.8% in shoot biomass, + 93% in CCI, + 84% in shoot P content, + 51% in CAT activity, + 79% in APX activity, + 93% in TPC and + 40% in SS compared to C+. This implies that PolyP fertilizers might be an alternative for the suitable management of phosphorus fertilization under salinity.

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Amelioration of salinity stress in wheat (Triticum aestivum L) by foliar application of phosphorus

Cited by 10 publications

References 16 publications

Coupling effects of phosphorus fertilization source and rate on growth and ion accumulation of common bean under salinity stress

Coupling effects of phosphorus fertilization source and rate on growth and ion accumulation of common bean under salinity stress

Salinity Stress in Wheat (Triticum aestivum L.) in the Changing Climate: Adaptation and Management Strategies

Polyphosphate fertilizer impacts the enzymatic and non-enzymatic antioxidant capacity of wheat plants grown under salinity

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