Photosynthetic efficiency and production of Annona squamosa L. under salt stress and fertilization with NPK

Ferreira, Fagner Nogueira; Lima, Geovani Soares de; Gheyi, Hans Raj; Sá, Francisco Vaniés da Silva; Pinheiro, Francisco Wesley Alves

doi:10.1590/1807-1929/agriambi.v25n7p446-452

Cited by 8 publications

(8 citation statements)

References 14 publications

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“…Similar results were observed by Ferreira et al (2021) in a study conducted with custard apple (Annona squamosa L.) under salt stress (0.8 and 3.0 dS m -1 ), in which they found reduction of 18.98% in the Fv of plants irrigated with the highest ECw (3.0 dS m -1 ), at 695 DAT.…”

Section: Resultssupporting

confidence: 87%

“…Plants irrigated with water of the highest salinity (4.0 dS m -1 ) had an increase of 7.13% (45.9) compared to those cultivated with ECw of 0.8 dS m -1 . The increase in Fo is indicative of damage to the photosynthetic apparatus caused by salt stress, since this variable indicates the loss of light energy, a situation that occurs in a state of oxidation of the quinone (primary electron receptor) in the reaction center (P680), hindering the transfer of energy from photosystem II (Dias et al, 2021). Sá et al (2021), evaluating the photosynthetic efficiency of sugar apple (Annona squamosa L.) under salt stress (ECw varying between 0.8 and 3.0 dS m -1 ), found an increase (7%) in Unlike the effect observed on Fo (Figure 3A), the maximum fluorescence was reduced with the increasing salinity of irrigation water (Figure 3B).…”

Section: Resultsmentioning

confidence: 99%

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Salicylic acid improves physiological indicators of soursop irrigated with saline water

Silva

Lima

Azevedo

et al. 2022

Rev. bras. eng. agríc. ambient.

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Plants grown under salinity are subject to osmotic and ionic stresses that cause several physiological changes, so searching for strategies that minimize the deleterious effects is essential for the development of irrigated agriculture. In this context, the objective was to evaluate the effects of foliar applications of salicylic acid on the mitigation of the effects of salt stress on photosynthetic pigments and chlorophyll a fluorescence of soursop cv. Morada Nova. The study was conducted in a greenhouse, in a randomized block design and 5 × 4 factorial arrangement, with five values of electrical conductivity of irrigation water - ECw (0.8 - control, 1.6, 2.4, 3.2 and 4.0 dS m-1) and four concentrations of salicylic acid - SA (0, 1.2, 2.4 and 3.6 mM), with three replicates. Foliar application of salicylic acid at a concentration of 1.4 mM mitigated the effects of salt stress on chlorophyll a, chlorophyll b, chlorophyll total, and carotenoids of soursop when irrigated with water of up to 1.5 dS m-1. Salicylic acid at concentrations above 1.4 mM combined with irrigation with saline water intensified the deleterious effects on photosynthetic pigments. Chlorophyll a fluorescence was not influenced by salicylic acid sprays up to the concentration of 3.6 mM.

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Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Salicylic acid improves physiological indicators of soursop irrigated with saline water

Silva

Lima

Azevedo

et al. 2022

Rev. bras. eng. agríc. ambient.

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“…et al, 2019. These results indicate a greater loss of energy by the chlorophyll complex, which may be related to the greater difficulty of plants in absorbing water and optimizing the process of free energy consumption (F. N. Ferreira et al, 2021). In line with this study, Andrade et al (2019) evaluated the tolerance of cowpea (Vigna unguiculata L.…”

Section: Resultsmentioning

confidence: 64%

Gas exchange, photosynthetic pigments, and photochemical efficiency of sesame under salt stress and phosphate fertilization

Dias

Silva

Soares

et al. 2022

Semina: Ciênc. Agrár.

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Salt stress is a threat to irrigated agriculture, especially in semi-arid regions, as it can cause irreversible damage to the photosynthetic apparatus at any stage of plant development, reducing chlorophyll biosynthesis, which compromises the photochemical efficiency and the photosynthetic process of plants. In this respect, phosphorus fertilization stands out as an alternative to mitigate the effects of salt stress on plants. Therefore, the present study investigated the growth, gas exchange, photosynthetic pigments, and photochemical efficiency of sesame cv. BRS Seda irrigated with saline water and fertilized with phosphorus. The experiment was carried out in pots adapted as lysimeters in a greenhouse in Pombal - PB, Brazil. Treatments were distributed in randomized blocks and analyzed in a 5 × 4 factorial arrangement with five levels of electrical conductivity of water (ECw: 0.3, 1.1, 1.9, 2.7, and 3.5 dS m-1) and four phosphorus rates (40, 70, 100, and 130% of the recommended dose for pot trials), in three replicates. The 100% recommendation consisted of applying 300 mg P2O5 kg-1 of soil. Sesame growth, chloroplast pigments, and gas exchange decreased with water salinity above 0.3 dS m-1. The application of 100 and 130% of the recommended phosphorus rate minimized the effects of salt stress on CO2 assimilation rate and photosynthetic pigment synthesis. The increase from 40 to 130% of the recommended phosphorus rate did not change the photochemical efficiency of sesame cv. BRS Seda at 60 days after sowing.

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“…48 Using water with different electrical conductivities and adding nitrogen, phosphorus and potassium salts can alleviate salt stress in plants by promoting ion homeostasis. 49,50 It has been reported that a mixture of organic matter, sulfur, and gypsum can reduce soil salinity and maintain soluble and exchangeable cations, promoting plant growth. 51 Iron (Fe) availability in saline soils is reduced, resulting in Fe-deficient crops.…”

Section: Salinity Stressmentioning

confidence: 99%

Bibliometric Analysis of Peer-Reviewed Literature on Stress Factors Affecting Agricultural Productivity

Sisodia

Sharma

2023

Curr Agri Res Jour

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Sustaining agricultural productivity is essential to ensuring food security. Climate change, increasing population and dwindling resources are factors of concern threatening crop productivity. Research across the globe have focused on seeking innovative measures to protect and enhance crop yield. We explored and analyzed peer-reviewed literature to provide an understanding of current and emerging trends in the field. A bibliometric method was followed using the database Scopus. Search queries used to retrieve documents were “Agriculture/crop productivity” and “Plant stress”. The study period was restricted to the last five years, from 2017-2021. The search query found 2207 documents in Scopus under the agriculture and plant stress theme. Increasing growth of publications was observed in successive years. Research activities in this field have the most contributors from Asian countries – China and India followed by the US. The major stresses affecting agricultural productivity being investigated were-Water stress, Temperature stress, Salinity stress. Amongst these, the theme related to water stress/ precipitation/ drought stress was the most investigated. The availability of water has a pivotal role in sustainable agriculture. The use of conservation agricultural practices such as intercropping, no-tillage, and soil mulching has proven to be effective in retaining soil water content and reducing the dependency on irrigation, especially in rainfed areas, thereby assisting in drought mitigation and increasing crop yield. Precision agriculture approach employing satellite data to predict weather and rainfall and early detection of stress signals using hyperspectral reflectance has shown promising results in ensuring sustained productivity. Breeding and transgenic approaches for plants with higher water use efficiency (WUE) and the ability to tolerate water stress are key areas of research being followed throughout the world.

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Photosynthetic efficiency and production of Annona squamosa L. under salt stress and fertilization with NPK

Cited by 8 publications

References 14 publications

Salicylic acid improves physiological indicators of soursop irrigated with saline water

Salicylic acid improves physiological indicators of soursop irrigated with saline water

Gas exchange, photosynthetic pigments, and photochemical efficiency of sesame under salt stress and phosphate fertilization

Bibliometric Analysis of Peer-Reviewed Literature on Stress Factors Affecting Agricultural Productivity

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