Abstract:

In order to make use of dominant species of AMF on seedling production and ornamental culture of tree peony, and cultivate high quality container seedlings and potted flowers, the effects of species and dose of AMF, culture substrates, and age of plant on colonization of arbuscular mycorrhizal for tree peony container seedling were investigated. The colonization frequency and intensity of Glomus geosporum (Gg) mixed Glomus mosseae (Gm) at level 3 holded the highest among all treatments. Colonization frequency, colonization intensity, abusculars rate, entry points and hyphal length of annual seedlings holded the highest, which were 94.64%, 13.2, 51.8%, 6.3 point/mm root length and 9.58 m/g dry soil, respectively. They decreased with the age of plants. In the 4 cultivating substances, there was a significant difference among turf: perlite：sand (1:1:1) with other media among colonization frequency (90.2%), colonization intensity(22.50) and 12.2 m/g dry soil. So, it was optimal that annual seedlings inoculated with Gg+Gm were cultivated in substrates for turf: perlite: sand (1:1:1).