Effect of arbuscular mycorrhizal fungi on Poa pratensis in vegetation-growing concrete

To improve the growth and survival rate of plants in vegetation-growing concrete, we chose two kinds of arbuscular mycorrhizal fungi, Glomus mosseae and Glomus intraradices, to study the effect of pure fungi, mixed bacteria on Poa pratensisl. cv. BALIN in vegetation-growing concrete. The results show that: The single application of Glomus mosseae (GM) can obviously improve the infection rate to 43.27%. Poa pratensis has stronger dependence on Glomus mosseae and mixed fungicides (MI) with little difference than Glomus intraradices (GI). The plant height and aboveground biomass with MI treatment can be increased by 15.8% and 20% respectively. Mtreatment can increase the underground biomass by 48% higher than any other treatment. M treatment can significantly improve the proline and soluble sugar contents by 45.4% and 27.7% and reduce the malondialdehyde content (MDA) by 14.7% which can enhance the plant stress-resistance. M treatment can make the plants get the highest CO₂ assimilation and water use efficiency (WUE), enhancing Poa pratensis' ability of using the light and water and improving better growth of plants. Glomus mosseae is the best choice to improve vegetation-growing concrete.