@Article{phyton.2024.047485,
AUTHOR = {Rui Zhang, Taixiang Chen, Zhenjiang Chen, Hao Chen, Xuekai Wei, Malik Kamran, Chunjie Li},
TITLE = {The Combination of <i>Achnatherum inebrians</i> Extracts and Soil Microorganisms Inhibited Seed Germination and Seedling Growth in <i>Elymus nutans</i>},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {93},
YEAR = {2024},
NUMBER = {3},
PAGES = {567--580},
URL = {http://www.techscience.com/phyton/v93n3/55991},
ISSN = {1851-5657},
ABSTRACT = {In a greenhouse experiment, the effects of soil microorganisms and extracts of <i>Achnatherum inebrians</i> on the seed germination and seedling growth of <i>Elymus nutans</i> were studied. The results showed that both the extracts from aboveground and belowground parts of <i>A. inebrians</i> significantly inhibited the germination rate, germination potential, germination index, vigor index, seedling height, root length, and fresh weight of <i>E. nutans</i>, but increased malondialdehyde content, catalase, peroxidase and superoxide dismutase activity of <i>E. nutans</i> seedlings (<i>p</i> < 0.05). The allelopathy of aqueous extracts of the aboveground parts of <i>A. inebrians</i> was stronger than that of the precipitates. Aqueous extracts of the aboveground parts of <i>A. inebrians</i> 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%, respectively. The above indexes were higher in live soil than in sterilized soil. Soil microorganisms increased the allelopathy of <i>A. inebrians</i>. The seed germination rate, germination potential, germination index, vigor index, seedling length, and seedling fresh weight of <i>E. nutans</i> 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, respectively. Malondialdehyde content, peroxidase, catalase, and superoxide dismutase activity of <i>E. nutans</i> 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, respectively. The existence of soil microorganisms enhanced the allelopathy of the secondary metabolites of <i>A. inebrians</i>. A combination of microorganisms and aqueous extracts from the aboveground parts of <i>A. inebrians</i> had the strongest allelopathic effect on <i>E. nutans</i>.},
DOI = {10.32604/phyton.2024.047485}
}