GROWTH OF RYEGRASS (LOLIUM PERENNE L.)

文献类型： 外文期刊

第一作者： Sun, M. L.

作者： Sun, M. L.;Li, T.;Li, D. M.;Zhao, Y. L.;Gao, F. M.;Sun, L. F.;Sun, G. Y.;Sun, G. Y.

作者机构：

关键词： Glomus mosseae; cadmium stress; plant growth; nutrition accumulation; photosynthetic characteristics

期刊名称：APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH （ 影响因子：0.712； 五年影响因子：0.758 ）

ISSN： 1589-1623

年卷期： 2021 年 19 卷 1 期

页码：

收录情况： SCI

摘要： A pot experiment was conducted to examine the effects of Glomus mosseae on some growth and physiological parameters, and cadmium (Cd) amounts in ryegrass (Lolium perenne L.) plants under the toxic levels of Cd. The experiment was carried out with two treatments (G. mosseae inoculation and non-inoculation), each having four Cd concentrations (0, 30, 90 and 180 mg Cd kg-1 soil). The results showed that mycorrhizal infection rate of G. mosseae was still as high as 43% under 180 mg kg-1 Cd concentration, indicating that G. mosseae colonized plants were tolerant to Cd stress. In non-inoculated and inoculated plants, by increasing Cd concentration in the soil, growth parameters, root activity, growth index, biomass, N and P content in plant and photosynthetic characteristic were reduced. Root activity, growth index, biomass, N and P content, photosynthetic physiology, superoxide dismutase (SOD) and catalase (CAT) contents of G. mosseae inoculated plants were increased compared to non-inoculated plants, whereas malondialdehyde (MDA) content decreased to a certain extent. In conclusion, inoculation of G. mosseae enhanced the resistance and tolerance of ryegrass to Cd stress, reduced the damage of harmful substances to cells, and promoted its growth.

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