ItemArticle

Enhancing Early Seedling Stage Salinity Tolerance in Rice Through Brassinosteroid Priming

Title
Enhancing Early Seedling Stage Salinity Tolerance in Rice Through Brassinosteroid Priming
Creator
Thomas, Tinu; Manojkumar, K.; Saravanane, P.; Nadaradjan, S.
Description
Rice (Oryza sativa), astaple food for the major global population, faces substantial productivity challenges due to salinity stress, an increasingly prevalent issue exacerbated by climate change. Salinity impacts rice at critical growth stages especially at seedling stage, root development, shoot elongation and ultimately seedling establishment. This study evaluated the effect of brassinosteroid (BR) priming as astrategy to improve seedling stage salinity tolerance in rice seedlings across 15genotypes subjected to moderate (140?mM NaCl), and severe (200?mM NaCl) salinity stress in comparison with control. BR-primed seeds demonstrated enhanced germination rates, seedling vigor index, shoot length and root length under salinity conditions compared to non-treated seeds. BR priming led to a35% improvement in SVI under control conditions and up to 30% under severe salinity, suggesting that BRs may facilitate osmotic regulation and ion homeostasis, key for maintaining growth under stress. Furthermore, BR priming significantly increased root development, essential for water uptake and nutrient acquisition in saline environments. Our results showed the prospect of BR priming as an effective approach to enhance rice resilience to salinity stress, providing afoundation for further field-based research on BR-mediated stress tolerance mechanisms. This study underscores the relevance of BR priming in improving rice productivity in saline-prone areas, contributing to food security in the face of increasing soil salinization. The author(s), exclusively licensed to Springer-Verlag GmbH Germany, a part of Springer Nature 2025.
Source
Journal of Crop Health;Volume;77;Issue;5;Article No.;169;
Date
01-01-2025
Publisher
Springer Science and Business Media Deutschland GmbH
Subject
Brassinosteroid; Early seedling stage; Salinity; Seed priming; Stress tolerance
Coverage
Thomas T., Crop Physiology Unit, Department of Plant Breeding and Genetics, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Nedungadu (PO), UT of Puducherry, Karaikal, 609 603, India, Department of Life Sciences, Christ University, Bangalore, India; Manojkumar K., Crop Physiology Unit, Department of Plant Breeding and Genetics, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Nedungadu (PO), UT of Puducherry, Karaikal, 609 603, India; Saravanane P., Department of Agronomy, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Nedungadu (PO), UT of Puducherry, Karaikal, 609 603, India; Nadaradjan S., Crop Physiology Unit, Department of Plant Breeding and Genetics, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Nedungadu (PO), UT of Puducherry, Karaikal, 609 603, India
Rights
Restricted Access; Hardcopy may be available in the library
Relation
ISSN: 2948264X;
Format
online
Language
English
Type
Article

Citation

Thomas, Tinu; Manojkumar, K.; Saravanane, P.; Nadaradjan, S., “Enhancing Early Seedling Stage Salinity Tolerance in Rice Through Brassinosteroid Priming,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/21864.

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