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The Combination of achnatherum inebrians Extracts and Soil Microorganisms Inhibited Seed Germination and Seedling Growth in Elymus nutans

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Phyton-International Journal of Experimental Botany 2024年第3期93卷 567-580页

作者： Rui Zhang Taixiang Chen Zhenjiang Chen Hao Chen Xuekai Wei Malik Kamran Chunjie Li State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems Key Laboratory of Animal Husbandry InnovationMinistry of Agriculture and Rural AffairsEngineering Research Center of Grassland AgricultureMinistry of EducationWest Gansu Province Prataculture Technology Innovation CenterCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou730020China Center for Grassland Research National Forestry and Grassland AdministrationCaFBeijing100091China

In a greenhouse experiment,the effects of soil microorganisms and extracts of achnatherum inebrians on the seed germination and seedling growth of Elymus nutans were *** results showed that both the extracts from aboveground and belowground parts of *** signiﬁcantly inhibited the germination rate,germination potential,germination index,vigor index,seedling height,root length,and fresh weight of ***,but increased malondialdehyde content,catalase,peroxidase and superoxide dismutase activity of *** seedlings(p<0.05).The allelopathy of aqueous extracts of the aboveground parts of *** was stronger than that of the *** extracts of the aboveground parts of *** decreased seed germination rate,germination potential,germination index,vigor index,seedling length,root length,and seedling fresh weight by 10.45%-74.63%,24.18%-32.50%,19.03%-73.36%,37.83%-88.41%,21.42%-53.14%,2.65%-40.21%,and 20.45%-61.36%,respectively,and malondialdehyde content,peroxidase,catalase,and superoxide dismutase activity increased by 8.09%-62.24%,27.83%-86.47%,22.90%-93.17%,and 11.15%-75.91%,*** above indexes were higher in live soil than in sterilized *** microorganisms increased the allelopathy of *** seed germination rate,germination potential,germination index,vigor index,seedling length,and seedling fresh weight of *** planted in live soil decreased by 8.22%-48.48%,10.00%-51.85%,8.19%-53.26%,16.43%-60.03%,12.91%-28.81%,and 9.09%-22.86%compared with sterilized soil,*** content,peroxidase,catalase,and superoxide dismutase activity of *** planted in live soil increased by 53.91%-81.06%,15.71%-57.34%,33.33%-86.31%,and 9.78%-52.51%compared with sterilized soil,*** existence of soil microorganisms enhanced the allelopathy of the secondary metabolites of ***.A combination of microorganisms and aqueous extracts from the aboveground parts of *** had the s

关键词： achnatherum inebrians water immersion liquid aqueous leachate precipitate allelopathy Elymus nutans soil microorganisms

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