Hancornia speciosa Gomes INOCULADA COM MICRO-ORGANISMOS PROMOTORES DO CRESCIMENTO VEGETAL EM DISTINTOS SUBSTRATOS

Abstract

Arbuscular mycorrhizal fungi (AMF) are widely recognized for their many positive effects on plant growth. They may be inoculated, allied or not, with other beneficial soil microorganisms, especially phosphate solubilizing microorganisms (MSF). The use of these microorganisms can benefit the growth of nursery tree seedlings, maximizing their field establishment capacity. For this, it is necessary that the substrate provides conditions suitable for germination and, or initial development of the seedling. Mangaba (Hancornia speciosa Gomes) is a fruit tree of tropical climate, native to Brazil, being found in various regions of the country. Among the fruit trees of the Cerrado, it stands out as one of the most important for sustainable exploitation programs in this biome. The objective of this work was to evaluate the inoculation of Claroideoglomus etunicatum and MSF in mangaba seedlings in different substrates. The work was carried out in a greenhouse, using a completely randomized design, in a 4 x 2 factorial scheme (four inoculation treatments: MSF; FMA; MSF + FMA and Control) and two substrates: pure sandy-sandy substrate and mix of loam-clay soils). Mangaba seedlings had higher growth and increase of leaf nutrients when cultivated in pure substrate. The inoculation of Claroideoglomus etunicatum is beneficial and favors the formation of mangaba seedlings.