| Summary: | The 2030 Agenda of Sustainable Development Goals targets the development of strategies to enhance crop productivity aiming for agricultural sustainability. Nanotechnology-based strategies have the potential to support agricultural development. In this context, the present article documents a field study investigating the impact of 10–150 µg/ml MgO-NPs nanopriming on radish leaves and roots. Nanopriming significantly enhanced the shoot and root length by 59 and 15%. MgO-NPs considerably increased the carbohydrates and protein content in leaves by 48 and 20%. The polyphenols in radish leaves were enhanced by more than 50% on nanopriming. Surprisingly, HPLC results showed 122, 189, and 75% enhanced accumulation of kaempferol 3-glycoside, quercetin, and rutin in nanoprimed radish leaves. On the contrary, radish roots showed increased oxidative stress of more than 50% in comparison to control on nanopriming. The accumulation of kaempferol 3-glycoside, quercetin, and rutin showed considerably more accumulation on exposure to 10 µg/ml than 150 µg/ml in roots. Further, carbohydrates and protein content were enhanced in radish roots for osmoregulation. Hence, nanopriming with MgO-NPs could be a novel strategy to enhance the biochemical parameters of radish leaves, thus enhancing their nutritional richness. It further suggests the use of MgO-NPs as a novel strategy to promote the vegetative growth of plants, where roots are not commercially important. Graphical Abstract: [Figure not available: see fulltext.] © 2024, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
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