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高性能酯复合材料在无土栽培条件下对植物生长影响的作用机制。

Mechanisms of the effect of high-performance ester composite materials on plant growth under soilless conditions.

机构信息

Guangdong Engineering Research Centre for Major Infrastructures Safety, School of Civil Engineering, Sun Yat-sen University, No.135 XinGangXiLu, Guangzhou, 510275, China.

School of Civil Engineering, Sun Yat-sen University, Guangzhou, 510275, China.

出版信息

Sci Rep. 2024 Aug 30;14(1):20168. doi: 10.1038/s41598-024-70824-6.

DOI:10.1038/s41598-024-70824-6
PMID:39215113
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11364644/
Abstract

The utilization of high-performance ester materials in addressing soil erosion and conserving water remains a crucial area of research in soil remediation. Currently, however, the mechanism underlying the role of these materials in vegetation restoration remains unclear, hampering the accurate determination of the optimal ratio of high-performance ester composite materials for soil enhancement. To address this issue, this study examines the mechanism of how high-performance ester composite materials affect the germination and growth of plant seeds through soilless cultivation experiments. The results revealed that the high-performance ester composite materials significantly enhanced seed germination ability and fostered plant seedling growth. Notably, the promotional effects of the ester adhesive and water-retaining materials within the high-performance ester composite varied. Specifically, the adhesive material significantly spurred radicle development, while the water-retaining material significantly accelerated germ growth. Varying concentrations of adhesive materials exerted distinct effects on plant growth. In particular, a small amount of adhesive materials enhanced seed germination, whereas excessive amounts exhibited inhibitory effects. Consequently, the optimal adhesive materials dosage conducive to plant growth and the optimal weight ratio of adhesive to water-retaining materials were ascertained. Additionally, the underlying mechanism of high-performance ester composite materials influence plant growth was elucidated. Overall, this research offers a theoretical foundation for the optimal ratio adjustment of high-performance ester composite materials to optimize soil improvement efforts.

摘要

高性能酯材料在解决土壤侵蚀和保持水土方面的利用仍然是土壤修复研究的一个关键领域。然而，目前这些材料在植被恢复中的作用机制尚不清楚，这阻碍了准确确定增强土壤用高性能酯复合材料的最佳比例。为了解决这个问题，本研究通过无土栽培实验，研究了高性能酯复合材料如何影响植物种子的萌发和生长的机制。结果表明，高性能酯复合材料显著提高了种子的萌发能力，并促进了植物幼苗的生长。值得注意的是，酯粘合剂和保湿材料在高性能酯复合材料中的促进作用有所不同。具体来说，粘合剂材料显著促进了胚根的发育，而保湿材料则显著加速了芽的生长。不同浓度的粘合剂材料对植物生长有不同的影响。特别是少量的粘合剂材料可以促进种子的萌发，而过量的则会产生抑制作用。因此，确定了有利于植物生长的最佳粘合剂材料用量和粘合剂与保湿材料的最佳重量比。此外，还阐明了高性能酯复合材料影响植物生长的潜在机制。总的来说，这项研究为优化高性能酯复合材料的最佳比例以优化土壤改良提供了理论基础。

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