Ascorbic ACID Modulates the Tolerance of Sour Passion Fruit to Salt Stress During the Seedling Formation Stage

Ascorbic ACID Modulates the Tolerance of Sour Passion Fruit to Salt Stress During the Seedling Formation Stage | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Ascorbic ACID Modulates the Tolerance of Sour Passion Fruit to Salt Stress During the Seedling Formation Stage Espedita Ranily Inácio da Silva, Carlos Augusto Mota soares, Allesson Ramos de Souza, and 9 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9362043/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 4 You are reading this latest preprint version Abstract In regions where climatic conditions favor soil and water salinization, characterized by high temperatures and irregular rainfall distribution over time and space, the development and expansion of passion fruit cultivation become limited. Therefore, the adoption of strategies capable of mitigating the effects of salinity on crops becomes necessary. The objective of this study was to evaluate the effect of ascorbic acid application on the physiology, growth, quality, and tolerance of sour passion fruit seedlings (Passiflora edulis Sims) cv. BRS GA1 under salt stress. The treatments consisted of five levels of electrical conductivity of irrigation water – ECw (0.3, 1.3, 2.3, 3.3, and 4.3 dS m –1 ) and four concentrations of ascorbic acid – AsA (0, 120, 240, and 360 mg L –1 ), arranged in a randomized block design in a 5 × 4 factorial scheme, with four replicates and two plants per plot. The increase in irrigation water salinity up to 4.3 dS m –1 compromised the growth and physiological performance of sour passion fruit seedlings. However, foliar application of ascorbic acid at concentrations between 240 and 300 mg L –1 favored the maintenance of water content, cellular integrity, and seedling growth even under higher electrical conductivity levels in irrigation water. The use of ascorbic acid at appropriate concentrations proved to be an efficient strategy for the production of sour passion fruit seedlings under saline conditions. Sour passion fruit cv. BRS GA1 is sensitive to irrigation water salinity, with a threshold level of 0.75 dS m –1 . Passiflora edulis Sims elicitor abiotic stress non-enzymatic Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 13 Apr, 2026 Editor assigned by journal 09 Apr, 2026 Submission checks completed at journal 09 Apr, 2026 First submitted to journal 08 Apr, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-9362043","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":622058940,"identity":"f81c622d-b9e3-4523-8bc6-84b3e52cb474","order_by":0,"name":"Espedita Ranily Inácio da Silva","email":"","orcid":"","institution":"Federal University of Campina Grande","correspondingAuthor":false,"prefix":"","firstName":"Espedita","middleName":"Ranily Inácio da","lastName":"Silva","suffix":""},{"id":622058952,"identity":"ff71d2e4-27c6-439a-a44b-f773184224a2","order_by":1,"name":"Carlos Augusto Mota 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Therefore, the adoption of strategies capable of mitigating the effects of salinity on crops becomes necessary. The objective of this study was to evaluate the effect of ascorbic acid application on the physiology, growth, quality, and tolerance of sour passion fruit seedlings (Passiflora edulis Sims) cv. BRS GA1 under salt stress. The treatments consisted of five levels of electrical conductivity of irrigation water – ECw (0.3, 1.3, 2.3, 3.3, and 4.3 dS m\u003csup\u003e–1\u003c/sup\u003e) and four concentrations of ascorbic acid – AsA (0, 120, 240, and 360 mg L\u003csup\u003e–1\u003c/sup\u003e), arranged in a randomized block design in a 5 × 4 factorial scheme, with four replicates and two plants per plot. The increase in irrigation water salinity up to 4.3 dS m\u003csup\u003e–1\u003c/sup\u003e compromised the growth and physiological performance of sour passion fruit seedlings. 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