A study on the growth and physiological traits of Leymus chinensis in artificial grasslands under exogenous hormone regulation

Abstract Leymus chinensis is a dominant perennial grass species in the Eurasian steppe, valued for its ecological and economic importance. Conducting research on the formation mechanism and regulatory approaches of artificial grassland productivity is the great significance for improving grassland p...

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Main Authors: Jifu Chen, Qiang Chen, Xiangyang Hou
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-14022-y
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author Jifu Chen
Qiang Chen
Xiangyang Hou
author_facet Jifu Chen
Qiang Chen
Xiangyang Hou
author_sort Jifu Chen
collection DOAJ
description Abstract Leymus chinensis is a dominant perennial grass species in the Eurasian steppe, valued for its ecological and economic importance. Conducting research on the formation mechanism and regulatory approaches of artificial grassland productivity is the great significance for improving grassland productivity, and restoration and reconstruction of degraded grassland. Select three-year-old sheep grassland as the experimental field, diethyl aminoethyl hexanoate (DA-6), brassinolide (BR), and melatonin (MT) were sprayed to explore the regulatory mechanisms and differential efficacy of different phytohormones on grassland productivity. MT promotes chlorophyll synthesis, drives enhanced photosynthesis and protein synthesis, DA-6 upregulated photochemical efficiency and improves the stability of light energy conversion. BR enhances water use efficiency (WUE) through synergistic effects of pore regulation. MT demonstrated significant in the accumulation of biomass during the early and middle growth stages, and upgrade the nutritional quality of forage. DA-6 is suitable for biomass accumulation in the later growth stage. BR has outstanding potential in water conservation and stress resistance capacity. This study elucidates the differences in the regulatory effects of different growth regulators on the productivity of sheep pastures, in order to providing technical insights to optimize the technical strategy for grassland restoration and mitigate the contradiction between the degradation of natural grasslands and the development of animal husbandry.
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spelling doaj-art-21b77eecc0f4450a9fd3c623d0ac12a32025-08-20T03:07:25ZengNature PortfolioScientific Reports2045-23222025-08-0115111110.1038/s41598-025-14022-yA study on the growth and physiological traits of Leymus chinensis in artificial grasslands under exogenous hormone regulationJifu Chen0Qiang Chen1Xiangyang Hou2College of Grassland Science, Shanxi Agricultural UniversityCollege of Grassland Science, Shanxi Agricultural UniversityCollege of Grassland Science, Shanxi Agricultural UniversityAbstract Leymus chinensis is a dominant perennial grass species in the Eurasian steppe, valued for its ecological and economic importance. Conducting research on the formation mechanism and regulatory approaches of artificial grassland productivity is the great significance for improving grassland productivity, and restoration and reconstruction of degraded grassland. Select three-year-old sheep grassland as the experimental field, diethyl aminoethyl hexanoate (DA-6), brassinolide (BR), and melatonin (MT) were sprayed to explore the regulatory mechanisms and differential efficacy of different phytohormones on grassland productivity. MT promotes chlorophyll synthesis, drives enhanced photosynthesis and protein synthesis, DA-6 upregulated photochemical efficiency and improves the stability of light energy conversion. BR enhances water use efficiency (WUE) through synergistic effects of pore regulation. MT demonstrated significant in the accumulation of biomass during the early and middle growth stages, and upgrade the nutritional quality of forage. DA-6 is suitable for biomass accumulation in the later growth stage. BR has outstanding potential in water conservation and stress resistance capacity. This study elucidates the differences in the regulatory effects of different growth regulators on the productivity of sheep pastures, in order to providing technical insights to optimize the technical strategy for grassland restoration and mitigate the contradiction between the degradation of natural grasslands and the development of animal husbandry.https://doi.org/10.1038/s41598-025-14022-yBrassinolactoneDiethyl aminoethyl hexanoateMelatoninPhotosynthetic leaf gas exchangeChlorophyll fluorescenceVegetative growth and biomass
spellingShingle Jifu Chen
Qiang Chen
Xiangyang Hou
A study on the growth and physiological traits of Leymus chinensis in artificial grasslands under exogenous hormone regulation
Scientific Reports
Brassinolactone
Diethyl aminoethyl hexanoate
Melatonin
Photosynthetic leaf gas exchange
Chlorophyll fluorescence
Vegetative growth and biomass
title A study on the growth and physiological traits of Leymus chinensis in artificial grasslands under exogenous hormone regulation
title_full A study on the growth and physiological traits of Leymus chinensis in artificial grasslands under exogenous hormone regulation
title_fullStr A study on the growth and physiological traits of Leymus chinensis in artificial grasslands under exogenous hormone regulation
title_full_unstemmed A study on the growth and physiological traits of Leymus chinensis in artificial grasslands under exogenous hormone regulation
title_short A study on the growth and physiological traits of Leymus chinensis in artificial grasslands under exogenous hormone regulation
title_sort study on the growth and physiological traits of leymus chinensis in artificial grasslands under exogenous hormone regulation
topic Brassinolactone
Diethyl aminoethyl hexanoate
Melatonin
Photosynthetic leaf gas exchange
Chlorophyll fluorescence
Vegetative growth and biomass
url https://doi.org/10.1038/s41598-025-14022-y
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