Affiliation: | 1. Federal University of Tocantins (UFT), PO Box 66, Gurupi, Tocantins, Brazil 2. Embrapa Coastal Tablelands, Av. Beira Mar 3250, PO Box 44, Jardins, Aracaju, Sergipe, Brazil 3. Graduate Programme in Agroecology, Maranh?o State University (UEMA), PO Box 09, S?o Luís, MA, Brazil
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