Resumo

JOAO, José P et al. Effectiveness of AMF strains on cassava crop (Manihot esculenta Crantz) in two types of soils. cultrop [online]. 2016, vol.37, n.1, pp. 48-56. ISSN 1819-4087.

This study was carried out with the objective of evaluating the effectiveness of inoculating arbuscular mycorrhizal fungal strains (AMF) on commercial clones of cassava crop (Manihot esculenta Crantz) and its dependence on the type of soil.Thus, the effectiveness of three AMF strains, Glomus cubense, Rizophagus intraradices and Funneliformis mosseae, was compared in Carbonated Loose Brown and Lixiviated Red Ferralitic soils. In the first soil, six commercial clones were used at a randomized block design with factorial arrangement, four replications and repeated for two years.Inthe second soil, AMF strains were just evaluated in ‘CMC-40’ clone at arandomized block design with four repetitions and conducted for two years. Cassava crop showed a high response to AMF strain inoculation. Strain effectiveness was different in either soil, so that R. intraradices behaved as the efficient AMF strain in Carbonated Loose Brown soils with pH 7,0 and G. cubense in Lixiviated Red Ferralitic soils with pH about 6,5. Although some clones showed compatibility for either strain, they did not stop establishing an effective symbiosis with the efficient strain, in such a way that compatibilities a mong clones do not change the criteria to recommend AMF strains per soil. Efficient strains per type of soil obtained for cassava crop coincide with the ones previously found for different crops

Palavras-chave : arbuscular mycorrhizal fungi; inoculation; soils.

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