Abstract
Biostimulants obtained from seaweeds contain excellent nutrient sources to enhance plant growth and high crop yield. In this study, the seaweed liquid extract (SLE) was prepared from three seaweeds, namely Ulva intestinalis extract (UIE), Portieria hornemannii extract (PHE), and Turbinaria ornata extract (TOE). The SLE was categorized into seven possible combinations (single SLE and mixture of SLE), and the combinations were diluted into six strengths (minimum of 10%, subsequently 20%, 30%, 40%, 50%, and a maximum of 100%). The SLE preparations were evaluated for their growth stimulation properties on Solanum lycopersicum seeds and plants in the pot study. The plants treated with UIE (30%) exhibited a notable response in seed germination (90%); improved growth parameters such as plant height (shoot length (51%), root length (71%)), biomass (fresh weight (60%), dry weight (65%)), leaf parameter (leaf count (55%), leaf area (212%)), biochemical content (carbohydrates (83%), proteins (78%), amino acids (68%), phenolics (106%)), and pigment content (carotenoid (58%), chlorophyll a (94%), chlorophyll b (74%)) when compared with control (water). Further, the UIE (30%) displayed an upsurge (95%) in the yield (2037.5 g/ plant) when compared with water-treated plants (1042.3 g/ plant). Based on the present study, the SLE (particularly UIE) illustrated better biostimulant activity on S. lycopersicum. The results suggest that SLE prepared from seaweed can be used as a better choice of fertilizer due to its biostimulant activity.
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Acknowledgements
The authors sincerely thank the Department of Biotechnology (DBT), Government of India (Grant No. BT/PR15731/AAQ/3/781/2016) for their continuous support and funding. The authors also wish to thank the VIT management for providing all facilities for carrying out this work.
Funding
The research was funded by the Department of Biotechnology (DBT), Government of India (Grant No. BT/PR15731/AAQ/3/781/2016).
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The study conception and design were contributed by Jayasri M. A. Material preparation, data collection, and analysis were performed by Karthik T., and Jayasri M. A. The first draft of the manuscript was written by Karthik T., and all authors approved the final manuscript.
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T., K., M. A., J. Exploration of biostimulant property of seaweed liquid extract (SLE) on the growth development and yield of Solanum lycopersicum (Tomato). Aquacult Int 31, 3189–3205 (2023). https://doi.org/10.1007/s10499-023-01252-y
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DOI: https://doi.org/10.1007/s10499-023-01252-y