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Fungal population on peanut cultivation soil as affected by liming, genotypes and sampling times

Aspergillus flavus group fungi may be found in the soil as in air or in peanut fruits (Arachis hypogaea L.). The aim of this paper was to evaluate the effect of the liming, cultivated genetic material and sampling times, in soil fungi population cultivated with peanut, in Seropédica State Rio de Janeiro, in the rainy season. The experimental design was split-split plot, replicated eight times, in completely randomized blocks. Each field replicate corresponded to three laboratory replicates. Plots consisted of presence and absence of liming, split plot of six cultivars (Tatu ST, Botutatu, IAC 5, IAC 22, BR 1 and Caiapó) and, split split plot of three harvesting times at sowing, 96 and 120 days after planting DAP. For the results, one concluded that samples collected in soil at 120 DAP, with lower values of pH and saturation for bases (V%), presented the biggest population of the Rhizopus sp. and lower population of the Aspergillus flavus group and the Fusarium sp., independent of cultivar and liming.

Arachis hypogaea; fungi contamination; Aspergillus flavus group


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