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Revista Ciência Agronômica

On-line version ISSN 1806-6690

Abstract

HIPPLER, Franz Walter Rieger; MOREIRA, Milene; DIAS, Naissa Maria Silvestre  and  HERMANN, Emilio Rodolfo. Native mycorrhizal fungi and phosphate doses in the development of peanut RUNNER IAC 886. Rev. Ciênc. Agron. [online]. 2011, vol.42, n.3, pp.605-610. ISSN 1806-6690.  https://doi.org/10.1590/S1806-66902011000300005.

The objective was to evaluate the interaction between native arbuscular mycorrhizal fungi (AMF) with peanut plants (Arachis hypogea) RUNNER cultivar IAC 886, at different levels of phosphorus (P). The experiment was conducted in a greenhouse in a randomized design in factorial (2 x 5), with and without inoculation of AMF and five P levels (0; 20; 40; 60 and 180 mg kg-1 in the form of KH2PO4) in four replications. Shoot, root and total dry mass, root colonization, mycorrhizal dependency and mycorrhizal efficiency were evaluated. It was concluded that increasing levels of phosphorus caused an increase in the development of peanut plants. The AMF promoted maximum production of total dry mass of the peanut in estimated dose of 114.0 mg kg-1 of P. The highest root colonization and mycorrhizal efficiency were observed at 60 mg kg-1 of P.

Keywords : Peanut; Fertilization; Phosphate fertilizers; Mycorrhizal fungi.

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