1-Triacontanol has attracted considerable research interest in the plant growth regulator field, owing to its physiological effect on seed germination, root growth and photosynthesis enhancement. In this work, a 1-triacontanol modified layered double hydroxide (tria-LDH) with improved dispersion and sustainable growth regulation properties is prepared via a facile self-assembly method. The tria-LDH shows enhanced foliar behavior in both wettability and adhesion, which holds the possibility of extended duration. It improved the physiological indices stem thickness, leaf area, and dry weight during the drought stress experiment on maize. Through the analysis of the MDA content and SOD activity, the physiological behaviour has been clarified by a synergy mechanism, the utilization of the tria-LDH can achieve sustainable growth regulation to alleviate drought stress mainly through the promotion of the SOD activity of ∼18.1% to remove free radicals and inhibit the cell membrane lipid peroxidation, which is confirmed by the reduced accumulation of MDA of ∼63.5%. Additionally, the application of LDH nano-carriers made the 1-triacontanol have a nanosized morphology and a rapid and continuous effect. Therefore, the tria-LDH provides a new perspective in well-designed nano-inputs, which shows sustainable growth regulation in agricultural production.

中文翻译：

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1-三十烷醇在层状双氢氧化物纳米载体上的自组装对玉米的可持续生长调控

1-三十烷醇因其对种子萌发、根系生长和光合作用增强的生理作用而在植物生长调节剂领域引起了相当大的研究兴趣。在这项工作中，通过以下方法制备了一种具有改善分散性和可持续生长调节特性的 1-三十烷醇改性层状双氢氧化物 (tria-LDH)一种简便的自组装方法。tria-LDH 在润湿性和粘附性方面表现出增强的叶面行为，这具有延长持续时间的可能性。提高了玉米干旱胁迫试验中的茎粗、叶面积和干重等生理指标。通过对 MDA 含量和 SOD 活性的分析，通过协同机制阐明了生理行为，利用 tria-LDH 可以实现可持续的生长调节，主要通过促进 ∼18.1% 的 SOD 活性来缓解干旱胁迫去除自由基并抑制细胞膜脂质过氧化，这可以通过减少~63.5％的MDA积累来证实。此外，LDH纳米载体的应用使1-三十烷醇具有纳米级的形态和快速连续的效果。