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    Efficacy of seaweed extracts on the germination of commercially important crops Triticum aestivum (wheat) and Vigna radiata (mung bean)

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    Date
    2025
    Author
    Phakatkar, S.S.
    Manohar, C.S.
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    Abstract
    Seaweed biomolecules are increasingly recognized for their efficacy and sustainability in traditional and modern agriculture. This study examines the biostimulant activities and the antioxidant capacity of wild seaweeds along with the cultivated species Gracilaria salicornia and Kappaphycus alvarezii from the west coast of India. The effect of the seaweed extracts at specific concentrations (1, 5 and 10 %) was tested on Triticum aestivum (wheat) and Vigna radiata (mung) seeds based on the shoot and root growth along with the seed growth indices. Biochemical analysis of aqueous seaweed extracts revealed significant variations in biochemical content across species. The reducing sugars, proteins, lipids and phenolic content were present in relatively low amounts in all the seaweed extracts investigated. These biomolecules, except phenolic content, were shown to have significant bioactivity, even at minimal levels. Based on correlation analysis, the biochemical constituent responsible for the antioxidant capacity could be identified as the reducing sugar content. The non-reducing sugars, protein, lipid content and minerals of seaweed extracts largely influenced the seed growth. The seaweed extracts of Sargassum cinereum, Gracilaria corticata, G. salicornia, Porphyra umbilicalis, K. alvarezii, Ulva lactuca and U. intestinalis had substantial antioxidant and biostimulant activity. However, the influence of these seaweed extracts differed on the T. aestivum and V. radiata seed growth parameters. These results, from this study provide a critical evaluation of seaweed-based biostimulants and their crop-specific responses which can be further explored for effective applications in the agro-biotech industry.
    URI
    https://doi.org/10.1007/s10811-025-03495-z
    http://drs.nio.res.in/drs/handle/2264/9499
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    • Scholarly literature [9141]

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