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Original Research Articles                      Volume : 14, Issue:11, November, 2025

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com /
submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2025.14(11): 211-229
DOI: https://doi.org/10.20546/ijcmas.2025.1411.021


Role of Seaweed Biostimulant in Plant Growth and Stress Resistance - A Review
Satadal Das*, Sandipan Dhabal, Sanjita Marandi, M. K. Pandit and Swagata Mondal
Department of Vegetable Science, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur-741252, Nadia, West Bengal, India
*Corresponding author
Abstract:

Modern agriculture must boost food production while reducing environmental harm. Traditional inputs like synthetic pesticides and fertilizers degrade soil and ecosystems. Plant biostimulants, especially those from seaweed, offer a sustainable alternative by enhancing natural plant functions. Rich in phytohormones, polysaccharides, amino acids, and minerals, seaweed extracts improve growth, photosynthesis, and nutrient uptake. Brown Seaweed Extract (BSE) acts as a synergistic potent biostimulant in vegetable cropping systems, for physiological enhancements and improved yields that stimulate root and shoot development, improve nutrient and water uptake, and enhance photosynthetic efficiency, collectively strengthening plant metabolism and stress resilience, withstanding fluctuations in water availability, temperature, and salinity. Its effects include enhanced root growth and nutrient uptake, allowing vegetables to better utilize soil resources and potentially reduce dependence on synthetic fertilizers. They also strengthen plant defenses against abiotic stresses (drought, salinity, heat) and biotic threats (pests, diseases) by activating antioxidants, stress proteins, and systemic resistance. BSE-induced hormonal and metabolic priming improves the growth base, particularly in early phases. Crucially, it provides improved stress tolerance against climatic variables like drought, temperature extremes, and salinity, making it valuable under increasing climatic variability. Their multifaceted benefits make seaweed biostimulants a promising eco-friendly tool for resilient agriculture. This article reviews the need for continued research into their modes of action and standardized application protocols to fully harness their potential in creating more resilient and productive agricultural systems.


Keywords: Seaweed, biostimulants, vegetables, sustainable agriculture


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Satadal Das, Sandipan Dhabal, Sanjita Marandi, M. K. Pandit and Swagata Mondal. 2025. Role of Seaweed Biostimulant in Plant Growth and Stress Resistance - A Review.Int.J.Curr.Microbiol.App.Sci. 14(11): 211-229. doi: https://doi.org/10.20546/ijcmas.2025.1411.021
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