EFFECT OF ARBUSCULAR MYCORRHIZAL FUNGI ON THE DEVELOPMENT OF TWO LEGUMINOUS TREES

Abstract

In a green house at the National Center of Research of Agrobiology (CNPAB/EMBRAPA), the effect of the inoculation of Arbuscular Micorrhizal Fungi (AMF) in the production of Peltogyne venosa and Sclerolobium paniculatum was evaluated. The experimental design was completely randomized with 4 treatments (Glomus clarum Nicolson & Schenk, Gigaspora margarita Becke Hall, native mycorrhizae and controls - without inoculation) and 25 repetitions. One hundred sixty eight days after seed germination, it was observed that the treatments did not affect seedling growth, except for P. venosa inoculated with G. margarita, which had a larger production of dry weight of fine roots. Seedlings of P. venosa and S. paniculatum inoculated with G. clarum and native mycorrhizae had the largest percentages of micorrhizal colonization. In both species studied, the largest survival percentages was of seedlings inoculated with native mycorrhizae.

Keywords

• Fungo micorrízico
• micorriza, leguminosa
• <i>Peltogyne venosa</i>
• <i>Sclerolobium paniculatum</i>.