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Neodymium Stimulates Growth, Nutrient Concentration, and Metabolism in Sugarcane in Hydroponics

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Abstract

Sugarcane (Saccharum spp. hybrids) is a crop of great global importance in various industries, such as the food and energy sectors. With over 55 million Mg of milling stems produced, Mexico is the eighth largest sugarcane producer in the world. Nevertheless, this crop faces environmental and agronomic challenges that require especial attention. Among the alternatives to improve the efficiency and competitiveness of the production system is biostimulation through beneficial elements, such as neodymium (Nd), which has shown positive effects on some crops. For this study, a hydroponic floating root system was established where 0, 50, 100, and 150 µM Nd were applied for 90 d to sugarcane cv. Mex 69-290. Growth was directly related to the concentration of applied Nd. The 150 µM Nd dose significantly increased the content of N, P, and K in leaves, stems, and roots of sugarcane seedlings. Likewise, it increased the concentration of sugars in shoots and that of amino acids in shoots and roots. Chlorophyll and carotenoid concentrations were also increased in shoots as a result of Nd applications. In contrast, Nd reduced antioxidant activity. Thus, we conclude that Nd has beneficial effects on sugarcane grown in a hydroponic system.

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Acknowledgements

We would like to thank the National Council of Science and Technology of Mexico (CONACYT) for the scholarship granted to VJRA to carry out his studies for a master's degree in science. We are also grateful to the Motzorongo Central Sugar Mill germplasm bank (Tezonapa, Veracruz, Mexico) for providing the sugarcane plants for this experiment.

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FCGM and LITT conceived of the presented idea; VJRA and LITT carried out the experiment; VJRA wrote the manuscript with support from LITT and FCGM; JVHC designed the model and the computational framework and analyzed the data; FCGM supervised the project. All authors discussed the results and contributed to the final manuscript.

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Correspondence to Fernando Carlos Gómez-Merino.

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Ramírez-Antonio, V.J., Trejo-Téllez, L.I., Gómez-Merino, F.C. et al. Neodymium Stimulates Growth, Nutrient Concentration, and Metabolism in Sugarcane in Hydroponics. Sugar Tech 25, 1385–1395 (2023). https://doi.org/10.1007/s12355-023-01283-y

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  • DOI: https://doi.org/10.1007/s12355-023-01283-y

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