THE RESPONSE OFACACIA SCLEROXYLATUSS. TO MYCORRHIZAL INOCULATION

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Abstract
Seeds of Acacia scleroxyla Tuss., collected from trees in the Subtropical Dry Forest near Mao, Dominican Republic, were germinated and seedlings inoculated with six species of mycorrhizal fungi (Glomus macrocarpum Tul. and Tul., Glomus fasciculatum (Thaxt.) Gerd, and Trappe, Glomus mosseae Nicol, and Gerd., Glomus etunicatum Becker and Gerd., Glomus epigaeum Daniels and Trappe, or Gigaspora margarita Becker and Hall). Seedlings were grown in a greenhouse for 32 weeks and various growth parameters and percent infection of the roots measured. Mycorrhizal infection significantly improved the growth of Acacia scleroxyla seedlings compared to that of nonmycorrhizal seedlings. Growth varied in response to the different fungal species and could have been due to differences in efficacy of the fungal species, differences in percent infection of the root, or a combination of these factors.