In recent decades, alternative technologies have been studied in order to make the cultivation of eucalyptus more economical and sustainable. Among these, the mycorrhizal associations deserve mention because of the many benefits they provide to host plants. Mycorrhizal fungi (AMF) form mutualistic association with plant roots, promoting greater uptake of nutrients to the host, which in turn yields products of photosynthesis to the fungus. With the establishment of the association, the plants become more resistant to adverse conditions such as nutrient-poor soil, low pH, high temperature, water stress, decreased microbial activity, among other biotic and abiotic stresses. This study aimed to evaluate the occurrence and activity of mycorrhizal fungi in eucalypt plantations used commercially by Copener Florestal Ltda. northern coast of Bahia. A high variability in the density of spores (36.2 to 203.2 spores in 50 g of soil), mycorrhizal colonization (10.6 to 57.8%) and levels of easily extractable glomalin and total (0.34 to 1.92 mg g-1 soil and 0.48 to 3.88 mg g soil-1) in plantations. The results of this study showed that although the clones showing susceptibility to mycorrhizal infection in field conditions, variations in soil characteristics affect the ecological aspects of mycorrhizal fungi in plantations of eucalyptus Copener Florestal Ltda. northern coast of Bahia.
Forest species; Mycorrhizae; Glomalin; Eucaliptus spp
