1. Graduate Program in Ecology and Natural Resources, Department of Biology Federal University of Ceará Fortaleza Ceará Brazil
2. Centro de Ciências, Central Analítica Federal University of Ceará Fortaleza Ceará Brazil
3. Departament of Agricultural Engineering Federal University of Ceará Fortaleza Ceará Brazil
4. Embrapa Tropical Agroindustry Fortaleza Ceará Brazil
5. Department of Plant Biology, Institute of Biology, CP6109 University of Campinas (UNICAMP) Campinas São Paulo Brazil